Describe the origin and fiber composition of (1) ventral and dorsal roots, (2) the spinal nerve proper, and (3) ventral and dorsal rami.

Answers

Answer 1

Answer:

A dorsal root (sensory or afferent) and a ventral root (motor or efferent) originate from the medulla. They unite near the intervertebral foramen, forming the spinal nerve. The nerves emerge from the intervertebral foramen, dividing into ventral and dorsal ramus.

Explanation:

The nerve is a set of nerve fibers perceptible to the naked eye and wrapped in connective tissue. They are made up of roots, trunks and nerve branches (some of them come together and form plexuses).The spinal nerve originate from the spinal cord in the form of 31 pairs: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral and 1 coccygeal. They emerge from the spinal cord through two roots: dorsal roots, made up of sensory fibers that come from the sensory neurons of the spinal ganglion and that penetrate the spinal cord through the posterolateral  and ventral root, made up of motor fibers, coming from the motor neurons of the anterior horn and visceral of the lateral horn of the gray matter of the spinal cord. This root exits the spinal cord through the anterolateral groove, then joins the posterior root to form the spinal nerve, which exits the vertebral canal through the corresponding intervertebral foramen.Each spinal nerve, after leaving the vertebral canal, emits two primary ramus: the dorsal ramus, contains somatic and visceral fibers that go to the skin and muscles of the back and the ventral ramus, which supplies the ventrolateral surface of the skin, body wall and extremities.


Related Questions

3. What is the relationship between the lungs of a human and the chloroplasts of a greenhouse plant
in the oxygen cycle? (4 points)

Answers

Answer:

Lungs in human is the site where gaseous exhange takes place hence reducing oxygen in the cycle while Chloroplasts are kinda species of the green pigment ( chlorophyll ) which enables photosynthesis which requires oxygen to take place hence reducing oxygen in the cycle

.
What are the conditions that cause hail to fall?

Answers

Hail forms in strong thunderstorm, when strong currents of rising air (updrafts) they carry droplets of water high enough that they freeze..

What is the function of a motor neuron?
A.Controls muscles
B.Connects other neurons
C.Connects spinal cord to brain
D.Connects parts of the brain

Answers

C. The brain sends messages to the spinal cord

which event is most likely to lead to a heat wave ??

Answers

Answer:

A

Explanation:

Hope this helps

Answer:

b

Explanation:

PLEASE HURRY!!!
Which type of seedless plant has horizontally branching stems covered with scale-like leaves and bearing vertical shoots?

1. club moss
2. horsetails
3. ferns
4. whisk ferns

Answers

Answer:

club moss

Explanation:

Answer:

club moss

Explanation:

A club moss ranges from .5 to 12 inches in height.

what is the basic unit of classification of living beings​

Answers

Answer:

The basic unit of classification of living beings, from the taxonomic point of view, is species.

Explanation:

Taxonomy is a discipline that deals with the classification of living beings, its basic unit of classification being the species category.

A species includes all the individuals with morphological and functional similarities, which also have the capacity to make crosses among them and have a descendant with the same characteristics, including fertility.

What year
was
cells invented​

Answers

Answer:

the cell was dicovered in 1665

Answer:

1665

Explanation:

The particles in a solid _____ back and forth in place.

Answers

The particles in a solid move back and forth in place.

Most cases of hypertension

1. are directly linked to stress.

2. have no known cause.

3. can be treated by increasing insoluble fiber intake.

4. can be treated by lowering salt intake.

Answers

Answer:

case of hypertension is

1. are directly linked to stress

Explanation:

hope my answer is helpful to you

Answer:

*Have No Known Cause*

Explanation:

Most cases of hypertension

Question options:

can be treated by lowering salt intake.

*****have no known cause.

can be treated by increasing insoluble fiber intake.

are directly linked to stress.

Because I took the test and got 100% on it!!!!

Some chemical reactions can produce spectacular displays of energy. In
chemical reactions, some chemical bonds are broken, and some bonds are
formed. Choose the statement that best reflects how energy is involved with
chemical bonds.
A.
B.
C.
D.
Energy is needed to break bonds.
Energy is released when bonds are broken.
Energy is formed in the breaking of bonds.
Energy plays no role in chemical bonds.
Vhich statement do you agree with? Explain your thinking.

Answers

Answer: energy is need to break bonds

Explanation:

Compounds form and are stable when they have less energy than the free atoms. Bond energy (in covalent compounds) describes the strength of a bond. The higher the energy holding the atoms together, the more is required to break the bond.

Help pls asap ...... in the pic below

Answers

Answer:

ask your teacher

Explanation:

Which two processes cause sand particles to form sandstone?

Answers

Answer:

cementation

compaction

Explanation:

HOPE THIS HELPS:)

will mark brainiest please help!!1

Answers

Answer:

Flask 2 and 3

Explanation:

They have living fish, and all living things do cellular respiration, unless they are plants and do photosynthesis, or they do not have oxygen and do fermentation.

flask 1,2 and 3 is the answer

PLZ HELP!!!
why do plants need carbon dioxide?

Answers

Answer:

both are correct!!

Explanation:

Carbon dioxide plays an important part in vital plant and animal process, such as photosynthesis and respiration. ... Plants and animals, in turn, convert the food compounds by combining it with oxygen to release energy for growth and other life activities. This is the respiration process, the reverse of photosynthesis.

Answer:

im positive that its both

Explanation:

hope this helps

Why do you think that space exploration was pursued despite the risks

Answers

Answer:

Because mankind has never stopped pursuing knowledge. It's the thing we all seek. It's something that may get us killed, but may also bring us exactly what we were looking for. People spend their entire lives looking for knowledge, and with the Cold War going on beating the Russians just made seeking the knowledge we wanted as Americans just that much more sweet.

Explanation:

lol im a nerd

Which type of stress force produces reverse faults? a. shearing b. tension c. compression d. deformation

Answers

Answer: c. (Compression)

Explanation:Compressional stress, meaning rocks pushing into each other creates a reverse fault.

hope this helps<3

Answer:

I did this for points- SIIIKKKKEEEEE THE ANSWER IS COMPRESSION

Explanation:

What is DNA
polymerase?
A. An enzyme that turns
DNA
into a polymer
B. An enzyme that brings DNA to
the ribosome
C. An enzyme that brings amino
acids to the ribosome
D. An enzyme that turns DNA
into RNA

Answers

Answer:

D

Explanation:

RNA is needed for DNA Replication

Explain the neonatal period (What happens when a baby is born?)

Answers

The neonatal period is the first 4 weeks of a child's life. It is a time when changes are very rapid. Many critical events can occur in this period: Feeding patterns are established. Bonding between parents and infant begin


Before the baby is born, blood goes through the placenta to get rid of waste and to pick up oxygen and nutrients that come from the mother. The developing baby manages on relatively low oxygen levels while in the uterus. After birth the child is exposed to suddenly higher (potentially dangerous) oxygen levels


hope that helped!

please help me with both of these:)

Answers

Answer:

Explanation:

how is the attraction between molecules of a solid and a gas different? answer - D

josh measured the temperature of a pond near his house before he left for school the water in the pond was 18c when he came home from school the temperature of the pond was higher than it was in the morning what happened to the water molecules while he was at school answer - As the temperature increases, B) the molecules started moving faster.

hope this helped :)

fill in the blank
based on available evidence, many scientists have concluded that the earth's climate is changing BLANK than in the past, due to BLANK activities

Answers

Answer:1) faster 2) human

Explanation:

What characteristic of water helps in regulating cell temperature and maintaining homeostasis?

Someone please help i need a claim, evidence, then a reasoning !

Answers

Answer:

The characteristic of water that helps regulate the temperature of the cells and maintain homeostasis is specific heat (Claim).

Explanation:

Specific heat is a physical property that is defined as the amount of heat needed to raise one gram of a substance by one degree Celsius. In the case of water, its specific heat is higher than that of other substances, being its value 4.186 joules/gram °C, or also 1 calorie/gram °C.

- Claim: The property of water that allows cells to regulate temperature and maintain homeostasis is specific heat.

- Evidence: a high specific heat value of water means that in bodies that possess this molecule in large quantities it is more difficult to raise the temperature

- Reasoning: Living beings are formed mostly by a high percentage of water, much of it in the intracellular compartment. The specific high heat of the water makes it difficult to have sudden changes in the internal temperature, even when the environmental temperature is high, which is a property of water that allows thermoregulation and maintains the balance or homeostasis.

When an organelle stops
functioning properly, which of
the following occurs?

Answers

Answer:

B.

Explanation:

When an organelle stops functioning properly, what is most likely to occur is that such organelles would be removed from the cell by lysosomes. the correct option, in this case, would be B.

Lysosomes are small spherical molecules with single membranes. The organelle primarily functions in the digestion of cell macromolecules and dead organelles.

Thus, the content of the lysosome is usually filled with digestive enzymes such as protease, lipase, nuclease, etc.

Lysosomes are protected from their own enzymes because of the membrane surrounding them. The contents are not allowed to spill out.

More on the lysosome can be found here: https://brainly.com/question/1945886

Based on what you were told about the
reproduction of the snails, write a question that
could be researched.

Answers

Answer:

If they aren't hermaphrodites, can they still be male and female at the same time?

Explanation:

the gene for a particular trait that is passed only from fathers to sons is most likely...
a. autosomal recessive
b. autosomal dominant
c. co-dominant
d. incompletely dominant
e. Y-linked
f. X-linked

Answers

Answer:

e. y-linked

Explanation:

Because women have XX chromosomes they will inherit an X from their mom and an X from their dad.

However, men have XY chromosomes so they inherit an X from their mom and a Y from their dad.

If the father had a trait attached to his y chromosome he would not pass it to his daughters, but it would pass on to his sons.

Collect information about the kind of waste produced in your house daily and how it is disposed off

Answers

Answer:

The different classes of waste produced in a house can be classified as follow: organic waste, liquid waste, solid waste and recyclable waste

Explanation:

In family homes, it is important to understand which are the types of waste in order to know how to dispose of them properly in an environmentally friendly way. First, liquid waste from the bathroom and kitchen is usually directed to the main sewer line or eliminated by septic tanks that serve as sewage collectors. Second, organic and recyclable waste is biodegradable, thereby this type of waste is usually disposed of in incinerators or landfills. Third, solid non-hazardous waste can be eliminated by compressing with mechanical systems and covered with earth to be finally compacted.

Which of these will give the MOST accurate and precise measurement of 15mL of liquid to be placed in a test tube?

Answers

Answer:

the answer is 25ml graduated cylinder

Explanation:

........................

What are the two main categories of contaminants in water?

Answers

Answer:

physical contaminant

chemical contaminant

Physical and chemical

How can we explain the observation that traits, such as skin color, are fairly consistent within a racial group, but alleles for skin color are not consistent

Answers

Answer:

Skin color is a quantitative trait influenced by the combined action of many genes, thereby different gene pools can result in the same skin color.

Explanation:

Quantitative traits (also known as continuous traits, ) are phenotypic traits that depend on the combined action of many genes and the environment. These traits show continuous variation, changing gradually over a range of values in the population. Examples of quantitative traits include height, skin color, weight, etc. A gene pool is the sum of all the individual genes in a population. In consequence, different populations may show different allele combinations (gene pools) that result in the same phenotype for a quantitative trait (skin color).

Which of the following cells is formed by meiosis?
O A. A fertilized egg
O B. A sperm cell
O C. A heart cell
O D. A bacterial cell

Answers

Answer:

B. A sperm cell

Explanation:

Meiosis creates gametes/sex cells, such as the sperm and egg.

So, sperm cells are formed by meiosis.

Meiosis doesn't create fertilized eggs, it instead creates normal egg cells.

Meiosis also doesn't create heart and bacterial cells because those are made in mitosis.

So, B is the correct answer.

A semi-permeable membranous sac contains a 4% NaCl, 96% water solution. This sac is placed into a beaker containing a 16% NaCl, 84% water solution. The membrane is permeable to NaCl. Which way will NaCl flow across the membrane (into or out of the sac)?

Answers

Answer:

Should be going out of the sac because the molecules has to balance the concentration not sure tho

Other Questions
Solve: 5/2x - 1/3= -1/2A. x=-5/12B. x= -25/12C. x= -1/15D. x= 1/3 Which choice shows an opinion that is best supported with evidence?A) Anyone who is interested in history will like James Cross Giblins The Riddle of the Rosetta Stone because Giblin gives a lot of information about ancient Greek and Egyptian history.B) Champollion translated many of the cartouches in ancient Egyptian tombs and concluded that they represented titles of monarchs, such as "Caesar," "Great King," and "Beloved of the Gods." C) Champollion is clearly the hero of James Cross Giblins The Riddle of the Rosetta Stone because most of the story seems to be about him and his work deciphering the Rosetta Stone.D) James Cross Giblins word choice shows that he respects Champollion because he states that Champollion was proven to be correct without any doubt and he describes Champollions book as ground-breaking. 3/4 c - 7/12 + 7/24 c + 2/3 - 1/6 c which expression is the best estimate of 1 1/5 X 3 2/3A: 2 X 3 B: 1 X 4C: 2 X 3 D: 1 X 3 what is the correct? Read the following scenario:A high school senior is applying for college. He completes an online application to Duke University and uploads a copyof his application essay. He prints off an affidavit of authenticity, signs it, and scans it into his computer. He thenattaches the signed affidavit to his application. Which of the following advancements in technology allows this student tocomplete these tasks?FTPVOIPIT find the zeros of the function: f(x)=3x^2-5x+3 An ant carries food at a speed of 0.01 m/s. How long will it take the ant to carry a cookie crumb to the ant hill, a distance of 50 m? Express your answer in hours. Will mark Brainlyest Use the properties of exponents to simplify the expression(y^3/2 X^-1/2)^4 The scale on a map is 1 inch to 3 miles. If the distance between two points is 6 inches, what proportion should you use to find the actual distance? = = = = When the hospital helicopter arrived with a patient, the emergency medical technician, George, gave the nurse, Cheikh, a detailed verbal report that lasted about an hour. He used complex medical terms to explain the patient's condition and verified that Cheikh understood all the information before he left. How might George have improved this verbal report? Please help Im confused on this which one is it???? . Which situation can be modeled using a linear function? A) the population of yeast that doubles after every minute B) the height of a projectile after it is launched C) the distance covered by a car moving at a constant speed D)the cost of a printing machine that depreciates every year at 2% per year In the United States today, many people speak languages other than Englishin their homes, and they have different religious beliefs. Many were bornoutside the country, ar their families immigrated from other countries. Basedon differences in culture, which term best describes the United States?A. SegregatedB. MonolingualC. PureD. Multiethnic How can traits affect fitness and howcan natural selection change thepresence of certain alleles over time? What is the coefficient in the term k?A.0B.1C.2D.k Which group of elements will completely fill their s and p valence subshells? The share of White and African American populations in the various states shown in the table most strongly suggests which of the following? In the inequalitya> 3x+8 or a>-4x-1, which value of a does the solution consist of numbers greater than -6 and less than 5?A-16B-26C-19D-23 Steam Workshop Downloader