1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
garri49 [273]
3 years ago
11

Sympathetic nerves may leave the spinal cord at which vertebra?

Biology
1 answer:
alisha [4.7K]3 years ago
7 0

Answer:

<u>b. first thoracic</u>

Explanation:

Sympathetic nervous system is<u> one of the divisions of the autonomic nervous system</u>. The other divisions are <u>parasympathetic nervous system</u> and <u>enteric nervous system</u>.

Autonomic nervous system is composed of <u>preganglionic neurons</u> and <u>postganglionic neurons.</u>

Similarly, the sympathetic nervous system is composed of postganglionic and preganglionic neurons.

The cell bodies of<u> preganglionic neurons of sympathetic nervous system is found in intermediolateral cell columns of spinal cord segments T-T12 and L1-2 or 3</u>. Therefore, sympathetic nervous system is also called <u>thoracolumbar division.</u>

The cell bodies of parasympathetic nervous system are found in the <u>brainstem  nuclei which exit via cranial nerves 3, 7, 9, 10 and also in the sacral spinal cord segements S2-4</u>, therefore parasympathetic nervous system is also known as <u>craniosacral division.</u>

<u>QUESTION:</u>

<u>b. first thoracic</u>

<u>This is the correct answer choice as sympathetic nervous system cell bodies are found in intermediolateral cell column of T1-12 and L1-2 or 3 spinal cord segments. Hence, a sympathetic nerve is most likely to leave via first thoracic vertebra.</u>

<u>Third lumbar is less likely as sympathetic nervous system does not extend to this level in every individual.</u>

You might be interested in
By age 30, what percentage of men and women have lived together without being married (cohabitated)?
yanalaym [24]

Answer:

50 percent

Explanation:

hope this helps

6 0
3 years ago
Pls help ASAP pls pls
V125BC [204]

Answer:

Less than one light year.

Explanation:

The sun is approximately 93,000,000 miles away from the earth. A light year is 5,865,696,000,000 miles.

7 0
3 years ago
Answer this question, right now.
timama [110]
It’s the 3rd option
4 0
3 years ago
Suppose u wanted ketchup to flow faster. What could u do to change its viscosity? Make connections to the particle theory of mat
balandron [24]

Answer:if you want it to be faster add water

Explanation:

5 0
2 years ago
Anne, an intern in a microbiology lab, was observing the characteristics of various specimens of protists. Match each specimen t
natta225 [31]
In simple terms, there are 4 categories of protists in basic biology characterized by their type of locomotion.

Locomotion by pseudopods or "false feet" is characteristic of ameobas (i.e. <em>Entamoeba histolytica</em>). Locomotion by papillary projections from the cell membrane called "cilia" is characteristic of <em>Paramecium </em>species. Locomotion by whip-like structures that propel the organism called "flagella" is characteristic of <em>Euglena </em>species. 
<em />
Lastly, protists that do not have locomotive organelles are exemplified by <em>Plasmodium </em>species, the etiologic agent of malaria. 
3 0
3 years ago
Other questions:
  • What is the term for the portion of the earth's atmosphere, hydrosphere, and geosphere where life is found?
    5·1 answer
  • White blood cells prevent the loss of blood by causing clotting. true or false.
    8·2 answers
  • Rickettsia are obligate intracellular parasites that are transmitted by arthropods. In which of the following places would you m
    11·1 answer
  • Vesicles in a sentence
    8·1 answer
  • What cavities are in the head, but are not included within the major cavities?
    12·1 answer
  • Which are the possible genotype combinations for their offspring? Select 3 options.
    5·2 answers
  • I need helppp please
    6·1 answer
  • 1) What is the purpose of the Biosphere 2 experiment?
    5·1 answer
  • 88 points !!!!!!!!!​
    12·1 answer
  • If a scientist is conducting an experiment about obesity and asks a group of people to stop eating saturated fat, that group of
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!