Nervous System III: Reflexed and ANS

Question 1

reflex

Answer 1

neural pathway that controls a reflexive action

Question 2

reflex arch

Answer 2

neural pathway that controls a reflex

Question 3

reflex arch neurons

Answer 3

sensory neurons have synapses in spinal cord that allows for reflexes to take place wo the brain

Question 4

5 components of the reflex arch

Answer 4

stretch receptor, afferent pathway, synapse, efferent pathway

Question 5

stretch receptor stimulated by and stimulates

Answer 5

muscle tendon and that stimulates muscle spindle

Question 6

synapse is the integration between

Answer 6

sensory line and motor line

Question 7

effector produces a

Answer 7

reflex muscle contraction

Question 8

patellar reflex helps to maintain

Answer 8

posture and balance

Question 9

peripheral motor nerves

Answer 9

somatic motor pathway, autonomic motor pathway

Question 10

somatic motor pathway

Answer 10

simple pathway with one target (skeletal muscle)

Question 11

somatic motor pathway contains

Answer 11

myelinated single neuron

Question 12

somatic motor pathway exits the

Answer 12

spinal cord at ventral root

Question 13

autonomic motor pathway location

Answer 13

lateral horn of the spinal cord

Question 14

2 neuron chain of the autonomic motor pathway

Answer 14

preganglion, postganglion neuron

Question 15

preganglion neuron

Answer 15

cell body in CNS, myelinated, multipolar neuron

Question 16

postganglion neuron

Answer 16

cell body in ganglion, unmyelinated axon, stimulates smooth muscle or glands in a visceral organ

Question 17

if neuron damaged in the autonomic motor pathway

Answer 17

effector (muscle/gland) would still work

Question 18

autonomic nervous system uses 2 neurons to affect

Answer 18

smooth muscle, cardiac muscle, glands

Question 19

somatic use how many neurons?

Answer 19

one

Question 20

autonomic use how many neurons?

Answer 20

two

Question 21

autonomic nervous system use 2 neuron chain to allow for?

Answer 21

increased communication and control; neuronal convergence

Question 22

neuronal convergence

Answer 22

2 neurons converge on the same target or divergence

Question 23

2 branches of the autonomic nervous system

Answer 23

sympathetic autonomic nervous system, parasympathetic autonomic nervous system

Question 24

sympathetic autonomic nervous system

Answer 24

flight or fight response

Question 25

sympathetic autonomic nervous system neuron preganglion neuron

Answer 25

preganglion neuron is short, myelinated, terminates outside of vertebral spinal cord

Question 26

sympathetic autonomic nervous system neuron postganglion neuron

Answer 26

unmyelinated

Question 27

neurotransmitters of sympathetic autonomic nervous system

Answer 27

at first synapse: acetylcholine SANSL norepinephrine/adrenaline

Question 28

both branches of sympathetic autonomic nervous system have

Answer 28

lot of branching to control neurons and organs

Question 29

parasympathetic autonomic nervous system

Answer 29

rest and digest response

Question 30

parasympathetic autonomic nervous system preganglionic neuron

Answer 30

fiber myelinated and long

Question 31

parasympathetic autonomic nervous system postganglionic neuron

Answer 31

fiber is unmyelinated and short

Question 32

parasympathetic autonomic nervous system location

Answer 32

close to organs they control

Question 33

parasympathetic autonomic nervous system branching

Answer 33

very little branching

Question 34

parasympathetic autonomic nervous system neurotransmitter

Answer 34

release acetylcholine