Autonomic and Endocrine Systems Flashcards Preview

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Flashcards in Autonomic and Endocrine Systems Deck (54)
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1

PNS

- Cranial nerves
- spinal nerves
- ganglia
- peripheral nerves

2

CNS

- Brain
- Spinal cord

3

afferent neurons

sensory
towards the spinal cord

4

efferent neurons

motor
away from the spinal cord

5

somatic

voluntary - skeletal muscle

6

autonomic

involuntary
sympathetic or parasympathetic - Cardiac muscle, smooth muscle, and glands

7

synaptic transmission

1. nerve impulse
2. voltage gated Ca2+ channel
3. synaptic vesicle fuses to presynaptic neuron
4. neurotransmitter diffuses across cleft
5. binds receptor on ligand-gated channels
6. Na+ enters

8

alarm response

sympathetic

9

relaxation response

parasympathetic

10

constriction of bronchi

parasympathetic

11

contraction of pupil

parasympathetic

12

decreased salavation

sympathetic

13

decreased digestion

sympathetic (because its a long-term process we don't need)

14

pupils dilate

sympathetic

15

sympathetic response associated with...

exercise, emotion, excitement

16

parasympathetic response associated with...

repletion, rest, relaxation

17

sensory input for autonomic nervous system

mainly interoceptors (internal sensing)

18

sensory input for somatic nervous system

special senses and somatic senses

19

control of output for autonomic

involuntary from limbic system, hypothalamus, brain stem and spinal cord

20

control of output for somatic

voluntary control from cerebral cortex

21

motor neuron pathway for autonomic

two-neuron pathway

22

motor neuron pathway for somatic

one-neuron pathway

23

neurotransmitters in autonomic

ACh and noraepinephrine

24

neurotransmitters in somatic

ACh

25

effectors of the autonomic nervous system

smooth muscle, cardiac muscle, glands

26

effectors of the somatic nervous system

skeletal muscle

27

noraepinephrine found where in the autonomic nervous system

postganglionic sympathetic fibres other than to sweat glands

28

Raynaud disease

excessive sympathetic stimulation following emotional stress or exposure to the cold, leading to chronic vasoconstriction, which causes fingers and toes to become ischemic (lack of blood) and appear white.

29

ACh found where in the autonomic nervous system

- preganglionic axons
- postganglionic parasympathetic
- postganglionic sympathetic to sweat glands

30

Hypothalamus controls...

- internal organs via autonomic nervous system and pituitary gland
- body temperature