In the brachial plexus the posterior cord contains portions of ______ nerves. Multiple choice question. C5 - T1 C2 - C5 C1 - C4 C8 - T4
Answers
In the brachial plexus the posterior cord contains portions of C5 nerves.
Here, correct option is C.
The posterior cord of the brachial plexus contains portions of nerves C5 through T1. The posterior cord is a bundle of nerve fibers that arise from the anterior rami of the lower four cervical nerves (C5-C8) and the first thoracic nerve (T1).
These nerves provide motor innervation to the posterior muscle groups of the upper limb, including the triceps, deltoid, supraspinatus, infraspinatus, teres minor, and subscapularis. In addition, the posterior cord provides sensory innervation to the skin on the posterior aspect of the arm, as well as to the shoulder joint.
The posterior cord also contains fibers that travel to the brachial artery, supplying motor innervation to the vessels and muscles in the arm. As such, the posterior cord plays an important role in the proper functioning of the upper limb, providing motor, sensory and vascular innervation to the structures of the arm.
Therefore, correct option is C.
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Related Questions
How many nucleotides are required to code for a protein containing 88 amino acids? O 22 nucleotides O 66 nucleotides O 132 nucleotides 0 264 nucleotides O 384 nucleotides
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The number of nucleosides required to code for a protein containing 88 amino acids is 264 nucleosides. Option 4.
Nucleosides and proteinA codon is a sequence of three nucleotides that codes for one amino acid in a protein.
Therefore, to determine the number of nucleotides required to code for a protein containing 88 amino acids, we need to multiply the number of amino acids by three (since each amino acid is coded for by three nucleotides):
88 amino acids x 3 nucleotides per amino acid = 264 nucleotides
Therefore, it would require 264 nucleotides to code for a protein containing 88 amino acids.
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When Mendel set up a Parental (P) cross between true-breeding purple and white-flowered plants to generate the F1and then allowed the F1to self-pollinate to generate the F2he saw a dominant to a recessive ratio of 3:1. What phenotypic ratio would be expected if he crossed the F1with the original purple parent?
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If the F2 generation showed a phenotypic ratio of 3:1 for dominant to recessive, the F1 generation would have had to be heterozygous, or Pp for the dominant
When did Mendel crossed pure breeding purple?
Mendel then crossed these plant lines for purebreeding and noted the characteristics of the hybrid offspring. All of the first-generation (F1) hybrids, he discovered, resembled one of the parent plants. For instance, all the offspring of a hybrid between purple and white flowers were purple (not pink, as blending would have predicted).
Mendel investigated pea inheritance (Pisum sativum). He selected peas because they are simple to grow, have been used in comparable trials, and can be sown every year. Stamen and stigma, the male and female reproductive organs of the pea flower, are both present. Before the flowers open, self-pollination takes place, resulting in the production of offspring from a single plant.
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crossbreed formation between myosin heads and actin molecules is caused by the elevation of calcium ion concentration in the sistol during rigor mortis salvation calcium ion concentration in the steel is permanent because
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Cross-bridge formation between myosin heads and actin molecules is due to the increase of calcium ion concentration in the cytosol. During rigour Mortis, the increase of calcium ion concentration in the cytosol is permanent because mitochondria stop producing ATP molecules required by the calcium ion pumps of the sarcoplasmic reticulum.
The increase in calcium ion concentration in the cytosol results in cross-bridge formation between myosin heads and actin molecules. This increase in calcium ion concentration in the cytosol that occurs during rigour Mortis is permanent because mitochondria stop producing the ATP molecules needed by the calcium ion pumps in the sarcoplasmic reticulum. After life has ended, a condition known as rigor mortis occurs. Due to the calcium ions' inability to reach the sarcoplasmic reticulum, the demands of the mitochondria are not met.
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help me please with this
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Answer:
Explanation:just put them if the volcanos are active and not active
how does an abundance of tryptophan inhibit the production of more tryptophan? view available hint(s)for part a how does an abundance of tryptophan inhibit the production of more tryptophan? inhibit the activity of all three enzymes in the pathway inhibit the activity of the first and second enzymes in the pathway and repress expression of the genes encoding all subunits of the enzymes in the pathway inhibit the activity of the first enzyme in the pathway and repress the genes encoding all enzymes in the pathway repress expression of the genes encoding all subunits of the enzymes in the pathway inhibit the activity of all three enzymes in the pathway and repress expression of the genes encoding all subunits of the enzymes in the pathway
Answers
Tryptophan inhibits self-production as it builds up by activating the repressor protein, which binds to the operator and prevents transcription. Tryptophan synthesis enzymes are not produced.
This repressor-tryptophan complex binds to the trp operator when tryptophan is abundant. The operon is not transcribed because this binding prevents RNA polymerase from binding. On the other hand, the operon is transcribed when tryptophan levels drop because the repressor is unable to bind the operator.
An essential amino acid is tryptophan.
Three enzymes are responsible for the biosynthesis of the tryptophan enzyme.
The 5 structural genes that code for the enzymes are as follows:
1. TrpE and TrpD genes code for enzyme 1
2. Genes- trpC-enzyme 2
3. TrpB and TrpA genes; enzyme 3
Tryptophan acts as an inhibitor, which controls the synthesis of tryptophan when there is an abundance of the amino acid.
Feedback inhibition for short-term inhibition happens when the activity of an enzyme is controlled. Tryptophan allosterically inhibits enzyme 1 in the pathway during this kind of inhibition.
Repressor-mediated inhibition takes place for long-term inhibition. The repressor stops the genes from being transcribed, so no enzymes are produced.
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What is a convection current?
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Answer:
A convection current is basically where heat rises and cold sinks
Explanation:
When heat is added to something, it expands and rises. This leaves a lower pressure region behind and the surrounding cold rushes in. The cold then is heated and finally the head rises to the top. Then it is cooled. Then repeat :)
A fungus the number of acorns to decrease significantly Which other populations of organisms will be directly affected, how Will these organisms be affected,Which one population will be affected the most why?
URGENT!
Answers
What is the color of the stars with the highest temp?
Answers
Answer: Blue Stars
Explanation: The color of a star shows its surface temperature. Blue stars are the hottest, followed by white, yellow, orange, and red.
Acute pancreatitis is often caused by the conversion of: a. trypsin to trypsinogen b. trypsinogen to trypsin c. pepsin to pepsinogen d. pepsinogen to pepsin e. proinsulin to insulin
Answers
Acute pancreatitis is often caused by the conversion of trypsinogen to trypsin. It is a condition that results from the inflammation of the pancreas. It is a sudden inflammation of the pancreas that lasts for a short time.
Acute pancreatitis is often caused by the conversion of trypsinogen to trypsin. It is a condition that results from the inflammation of the pancreas. It is a sudden inflammation of the pancreas that lasts for a short time. Inflammation of the pancreas impairs digestion and blood sugar regulation, resulting in severe abdominal pain, indigestion, nausea, and vomiting. Acute pancreatitis is caused by the activation of digestive enzymes in the pancreas that start digesting the pancreas. The pancreas is an organ that produces pancreatic juices that contain enzymes to help break down fats, proteins, and carbohydrates in the small intestine to support digestion. The enzymes remain inactive until they reach the small intestine, where they become active and start working. However, under certain conditions, such as gallstones or alcohol consumption, these enzymes can become active prematurely in the pancreas itself, causing it to digest itself, resulting in acute pancreatitis.
Typically, trypsinogen is an inactive precursor enzyme that is produced by the pancreas and transported to the small intestine through the pancreatic duct. However, when the pancreas becomes inflamed, trypsinogen may become activated prematurely to trypsin, which can cause acute pancreatitis. Trypsin is an enzyme that acts as a protease, a protein-digesting enzyme. Once activated, trypsin can activate other pancreatic enzymes and lead to the inflammation of the pancreas, which can be life-threatening if left untreated.In conclusion, acute pancreatitis is often caused by the premature conversion of trypsinogen to trypsin. Once activated, trypsin can initiate the digestion of the pancreas and activate other pancreatic enzymes, leading to the inflammation of the pancreas, resulting in acute pancreatitis.
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2.Identify a locus or loci that show(s) a 100% association with fur colour.
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Answer:
A locus that shows a 100% association with fur color is known as the "Fur color gene." The Fur color gene is the gene responsible for determining the color of an organism's fur, hair, or skin. Mutations in this gene can lead to variations in fur color. For example, in mice, the agouti gene is located on chromosome 2 and is responsible for determining the color of the mouse's fur. The presence of a dominant form of the agouti gene results in a yellow coat color, while the recessive form of the agouti gene produces a black coat color.
how to describe the cells of the upper epidermis.
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The cells of the upper epidermis are thin and flat, and are typically arranged in a single layer. These cells are dead, meaning they lack a nucleus and other organelles.
The cells need to be replaced fast and effectively since the upper epidermis regenerates and sheds cells continuously. The cells contain a lot of keratin, a hard protein that helps shield the skin from harm.
Specialised proteins and lipids that support hydration and environmental defence are also present in the cells. The skin is waterproof because of a densely woven arrangement of these cells, which are closely packed together.
Moreover, this configuration keeps the skin elastic and resistant to ripping or injury. Desmosomes, which assist hold the cells in place and provide them mechanical strength, link the cells to one another.
These characteristics of the epidermis aid in defending the body against environmental harm and dehydration.
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Human behavior is frequently influenced by family and cultural experience resulting in habits and attitudes that began forming in infancy. Bill and his parents generally lead fairly sedentary lives often watching cartoons and playing video games. He would like to improve his health and physical condition. Which change does not represent a change toward more healthy habits?
A) Adding an afternoon walk and weekend family hikes in a nearby park.
B) Eating more fruits and vegetables and less meat, carbs, and dessert.
C) Order pizza and popcorn and watch more television as a family night.
D) Limiting screen time and reading more books and enjoy family game night.
Answers
Answer: The answer is C. Order pizza and popcorn and watch more television as a family night.
Explanation: It’s C because ordering pizza and popcorn will make your diet worse and create even worse habits.
24. A limiting factor for a field planted with corn every year is most likely -
A soil nutrients.
B. usable water.
C. temperature.
D. sunlight.
over time.
Answers
Planting the same crop over and over again depletes the nutrients of the soil and it also allows any pests to get used to the soil. That’s why many people practice crop rotation.
A corn plant grows slowly at the first of the season, but speeds up with the appearance of each new leaf. The interval between new leaves will shorten as the season advances under non-stressful circumstances. Thus, option A is correct.
What are the factor that affect the growth of corn plant?For corn seedlings to germinate and emerge quickly after planting, sufficient soil moisture is essential. As long as there is enough water in the soil, relatively low evapotranspiration after seedling emergence enables plants to thrive with little stress.
Loamy sand to clay loam are only a few of the several types of soils where maize can be cultivated successfully.
However, soils with high levels of organic matter, high water retention, and a neutral pH are thought to be good for higher productivity.
Therefore, A limiting factor for a field planted with corn every year is most likely soil nutrients.
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i. for each of the following pairs of concepts, first determine which is the genus, which the species; and then try to name two other species of the same genus.
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In the biological taxonomy, a genus (plural: genera) is a taxonomic group made up of species that have been grouped together based on phylogenetic relatedness.
Determine which of the following pairs of concepts is the genus and which is the species?Man and Animal, Animal as the Genus, Animals: Man, Dogs and cats are other species. Coat and Garment, Genus: Coat, Species: Others include shirts and pants. Vehicle and Car, Species: Car, Genus: Vehicle Others include buses and motorcycles. Baseball and sport, sport as a genus, and baseball as a species Basketball and football are other species. Species: Autobiography, Genus: Non-Fiction Book, and Species: Autobiography Other species: a history or biography book.
How should genus be written?The genus name is always capitalized and written first; the specific epithet follows and is not capitalized. This is true without exception. Observe that the classifications in the example above range from general (Animalia) to specialized (C. lupus).
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Defend the statement:
"all cells contain the same DNA, but are vastly different."
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What is the term for the breakdown of glucose in the presence of oxygen?
anaerobic
cellular respiration
fermentation
photosynthesis
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Answer:
Cellular respiration
Explanation:
Cellular respiration involves the breakdown of glucose using oxygen to produce energy, or ATP, that is used by the cell
how do structures in living organisms compared with structures of non-living things such as construction cranes
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Living things have the capacity to grow, procreate, and carry out metabolic processes. Biomolecules, the building blocks of living things, need energy to function.
They display the processes of breathing, digesting, movement, and excretion. These things are made of cells.
Ships, houses, and airplanes are examples of non-living things that do not develop or procreate. These substances are made of inorganic molecules and lack any vital metabolic processes for life. Non-living things do not contain any cells.
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Why are viruses used in gene therapy?
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Answer:
certain viruses are used as vectors because they can deliver the new gene by infecting the cell. the viruses are modified so they can't cause disease when used in people. some types of virus, such as retroviruses, integrate their genetic material (including the new gene) into a chromosome in the human cell.
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Which animal is native to a different part of the world than the other two? walrus polar bear penguin.
Answers
Penguin is an animal that is native to a different part of the world other than the other two
What is native species?Native species refers to species of organisms that of a particular origin. They are organism found in a location where they are native to or have there origin there .
Therefore, Penguin is an animal that is native to a different part of the world other than the other two
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A mutation in a gene results in a defective protein that is smaller than the normal, functional one. The mutation is probably a result of.
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The DNA sequence of a gene is altered to generate a different result, which is known as a genetic mutation.The DNA sequence of that gene is permanently altered.For humans to develop, which is the process of change over a number of generations, genetic variances are crucial.In one person, a spontaneous genetic mutation takes place.
What causes mutation?Errors in DNA replication during cell division, exposure to mutagens, or viral infection can all cause mutations.Somatic mutations (which happen in body cells) cannot be passed on to offspring, whereas germline mutations (which happen in eggs and sperm) can. Cystic fibrosis, hemophilia, and sickle cell disease are examples of hereditary mutations.Throughout a person's life, further mutations may occur on their own.Spontaneous, sporadic, or novel mutations are the terms used to describe them.Only a few cells are affected. Mutations that are harmful can result in cancer or genetic diseases.A genetic disorder is a condition brought on by a change in one or more genes.Cystic fibrosis is a human example.A single gene mutation causes the body to create thick, sticky mucus that obstructs digestive organ ducts and clogs the lungs. There are certain point mutations that actually change the amino acid that the codon specifies.A nonsense mutation or a missense mutation may result from these point mutations.When the replacement creates a codon for a different amino acid, it is known as a missense mutation. Errors in DNA replication or the harmful effects of mutagens, such as chemicals and radiation, which react with DNA and alter the architecture of individual nucleotides, are the two main causes of mutations.DNA repair enzymes are present in all cells and work to reduce the frequency of mutations.To learn more about mutation refer
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how do scientists determine the depth of the ocean?
Answers
Explanation:
The most common and fastest way of measuring ocean depth uses sound. Ships using technology called sonar, which stands for sound navigation and ranging, can map the topography of the ocean floor. The device sends sound waves to the bottom of the ocean and measures how long it takes for an echo to return.
what is measurement
Answers
Measurement is defined as the act of measuring or the size of something. An example of measurement means the use of a ruler to determine the length of a piece of paper. An example of measurement is 15" by 25".
Answer:
This is the act of measuring something or the act of taking the length, weight or height of something,e.t.c.
Explanation:
what is the theory for the evolution of anxiety disorders? a. as a result of an evolutionary cost/benefit analysis of anxiety b. anxiety developed as a reaction to stress c. random mutation caused the evolution of anxiety d. none of the above
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As a result of an evolutionary cost/benefit analysis of anxiety
Disabilities include anxiety illnesses including OCD, panic disorders, phobias, or PTSD. As a result, they are able to receive Social Security disability benefits. People must demonstrate that their condition is so crippling that it keeps them from working.
What about anxiety disorders?Nearly 30% of adults experience an anxiety disorder at some point in their lives, making it the most prevalent of all mental disorders. However, there are a variety of efficient therapies for anxiety disorders. Most persons who receive treatment can live regular, fulfilling lives. The most typical form of anxiety disorder is GAD. The primary symptom of GAD is overly worrying about various things to do and occasions. If you have GAD, you could experience frequent feelings of anxiety. When someone is having a panic attack, they experience a variety of physical symptoms as well as strong, overpowering, and frequently uncontrollable feelings of anxiety. Shortness of breath, chest pain, dizziness, and heavy sweating are all signs of a panic attack. When the body's normal reactions to stress are too strong and interfere with your capacity to function and complete everyday chores, you experience severe anxiety. Even though most people experience some anxiety, especially when confronting a challenge or new experience, extreme anxiety can be debilitating. Hyperchondria is a very uncommon form of illness anxiety problem. About 0.1% of Americans are impacted. In early adulthood, it usually manifests. All ages and genders are susceptible to illness anxiety disorder.Learn more about anxiety disorders here:
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A sentence for apoptosis
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Answer:
Apoptosis is a form of programmed cell death that occurs in multicellular organisms.
distinguish between bone and cartilage
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Answer:
bones are the hard, inelastic and a tough organ that forms part of the vertebral skeleton. Cartilage is a soft, elastic and flexible connective tissue that protects the bone from rubbing against each other.
Explanation:
Pls help! Could you also explain how you got your answer? Thank you!
Answers
The hospital must have made a mistake as the child can not have a blonde hair.
What are the genotypes?
We know that when we talk about the genotypes we mean the sum total of the genes that the individual can be able to get from its parents. Let it be noted that the father can said to have the genotype Rr while the mother has the gene RR. The phenotype is the expressed trait that we see.
The R here is the gene for the brown hair. In each of the cases, we cam see that the crossing of the genes must always give rise to a child that has a brown hair thus the hospital must have made a mistake.
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Hi, can you please answer these questions?
Which of the following triggers for asthma is most commonly found in the home?
A.] Dust mites
B.] Flower pollen
C.] Sawdust
D.] Cold air
Which of the following cannot be prevented by healthy living activities?
A.] Influenza
B.] Iron-deficiency anemia
C.] Sickle cell anemia
D.] Chronic heart disease
I kindly ask that you please answer these last 2 questions, ty
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Answer:
1. is A
2. is A
Explanation:
anyone can get the flu no matter how healthy you are and dust mites are most common
If you could take two of Pema’s sperm cells, would the genetic information in them be the same or different? Support your answer with reason(s).
Answers
Answer:should be same
Explanation:
Which of the following statements BEST outlines why the coral reefs in the Caribbean are at risk?
a) There has been overfishing of invasive species
b) The Caribbean is a popular tourist destination
c) There have been many hurricanes in the Caribbean
d) There has been a decrease in the volume of sewage flowing into the reefs
Answers
Answer:
j5tj th hr rg eg eg ry rh gr df un j
Explanation:
r h h5 h5
Answer:
b) The Caribbean is a popular tourist destination
sometime between 22 and 26 weeks, group of answer choices vernix and lanugo begin to cover the skin. the external genitals are formed. a fetus has a chance of survival outside the womb. synchrony between the fetal heart rate and motor activity peaks.
Answers
A fetus can survive outside of the womb.
Very early births are not regarded as viable until 24 weeks have passed from conception. This indicates that an infant's probability of survival is often less than 50% if they are born before they are 24 weeks old.
Sometimes babies born earlier than 24 weeks gestation survive. However, there is a sizable chance that these kids will experience serious long-term health problems. The early birth of these preemies causes long-term health problems in about 40% of them.
Infants that are 24 weeks old have a survival rate of between 60 and 70 percent.
But if a woman can hold onto her pregnancy for only two or three more weeks, the likelihood that a 24-week-old preemie would pass away decreases significantly.
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