TEST 3 - Jan 2020

Question 1

1. Where in the brain are most of the sensations of the body actually perceived?(1 )

Answer 1

Cortex

Question 2

2. How many pairs of spina peripheral nerves (ie coming out of the spinal cord) are there? (1 )

Answer 2

31

Question 3

3. How many cranial nerves are there? (1 )

Answer 3

12

Question 4

4. Which is the most important/extensive (arguably) cranial nerve (name and number)? (2 )

Answer 4

Somatic and Autonomic

Question 5

5. What are the two main FUNCTIONAL (ie referring to the kinds of ‘job’ they do) parts of the somatic nervous system? (1 )

Answer 5

Central and peripheral (CNS and PNS)

Question 6

6. Give one other word could you could use for somatic Nervous System? (1)

Answer 6

Voluntary

Question 7

7. ……. and another word for autonomic (1 )

Answer 7

Involuntary

Question 8

8. Which par of the nervous system ‘deal with’ cardia muscle, smooth muscle, glands and blood vessels? (1 )

Answer 8

Autonomic

Question 9

9. Do somatic and autonomic neurones (nerve cells) sometimes travel in the same nerve? (1 )

Answer 9

Yes

Question 10

10. Why does the autonomic nervous system ‘want’ to maintain constant internal environment? (2)

Answer 10

Protein enzymes, body chemistry

Question 11

11. Do some organs/tissues have both somatic and autonomic nerves attached to them- if so, give an example! (2)

Answer 11

Yes

Diaphragm

Question 12

12. Under what conditions is the parasympathetic NS dominant? (1 )

Answer 12

Unstressful

Question 13

13. Under what conditions is the sympathetic NS dominant? (1 )

Answer 13

Stressful

Question 14

14. What do catabolic reactions do in the body? (1 )

Answer 14

Break down large molecules to release energy

Question 15

15. From what part of the spinal cord do sympathetic motor neurones emerge? (1 )

Answer 15

T1 to L2 / rib area

Question 16

16. Do sympathetic motor neurones get to all 31 spinal nerves? (7 )

Answer 16

Yes

Question 17

17. If the sympathetic NS ‘emerges’ from the middle of the spinal cord, where does the parasympathetic NS ‘emerge’ from? (1 )

Answer 17

‘top and bottom’

Question 18

18. Specifically, where do parasympathetic motor neurones emerge from? (1 )

Answer 18

C 3, 7, 9, 10

S 2, 3, 4

Question 19

19. In the parasympathetic NS, where are the joins (synapses) between the pre ganglionic motor neurones and the post ganglionic motor neurones? ( 1)

Answer 19

In the target organs

Question 20

20. In the parasympathetic NS, are the post ganglionic neurones very long or very short? ( 1 )

Answer 20

Very Short

Question 21

21. In the parasympathetic NS, up which cranial nerves do the physiological and stretch sensations go? (2)

Answer 21

9 + 10

Question 22

22. In the parasympathetic NS, through which sympathetic structure do the pain sensations go to get in to the spinal cord? (1 )

Answer 22

Sympathetic chain

Question 23

23. What is the proper term for ‘the brain of the guts’? (1 )

Answer 23

Enteric NS

Question 24

24. Does the enteric NS always act entirely independently of the autonomic NS? (1 )

Answer 24

No