functional information flow

Question 1

what is Somatic information?

Answer 1

Somatic is the stuff we are aware of, have control
over

Question 2

what is autonomic information?

Answer 2

Autonomic is the stuff we are not aware of, and have no control over

Question 3

what are the two different types of somatic information?

Answer 3

► Voluntary muscle control
- SOMATIC EFFERENT (motor)
► Sensory information we are aware of
- SOMATIC AFFERENT (sensory)

Question 4

what are the two different types of autonomic information?

Answer 4

► Involuntary muscle control
- AUTONOMIC EFFERENT (motor)
► Sensory information that we don’t know about
- AUTONOMIC AFFERENT (sensory)

Question 5

what is voluntary muscle control?

Answer 5

somatic efferent (motor)

Question 6

what is involuntary muscle control?

Answer 6

autonomic efferent (motor)

Question 7

what is sensory information we are aware of?

Answer 7

SOMATIC AFFERENT (sensory)

Question 8

what is sensory information we are not aware of?

Answer 8

autonomic afferent (sensory)

Question 9

what is the purpose of somatic efferent division/

Answer 9

to get our bodies moving - control the contraction of the skeletal muscle

Question 10

how many neurons in somatic efferent division?

Answer 10

two neurons between the brain and the effector

Question 11

what are the two neurons in somatic efferent division?

Answer 11

• upper motor neuron
• lower motor neuron

Question 12

how do the two somatic efferent divisions connect?

Answer 12

Upper motor neuron makes a synapse into the lower motor neuron

Question 13

where is the upper motor neuron’s cell body?

Answer 13

in the brain

Question 14

where is the upper motor neuron’s axon?

Answer 14

spinal cord

Question 15

where is the lower motor neuron’s cell body?

Answer 15

spinal cord

Question 16

where is the lower motor neuron’s axon?

Answer 16

spinal nerve

Question 17

what are effectors?

Answer 17

things the nerves go to and
control = skeletal muscle

Question 18

what happens to the axon in the somatic efferent division?

Answer 18

it is myelinated in both the motor neurons

Question 19

where is the upper motor neuron?

Answer 19

entirely in the central nervous system

Question 20

where is the lower motor neuron?

Answer 20

half in the central nervous system (cell body - spinal cord) and the other half the axon is in the peripheral nervous system (the axon in the spinal nerves)

Question 21

how many synapses are in the somatic efferent?

Answer 21

two - one between the upper to the lower and another between the lower and the effector (skeleton muscle)

Question 22

what is the neurochemical released in both synapses?

Answer 22

acetylcholine (Ach)

Question 23

what are the two divisions of autonomic efferent?

Answer 23

sympathetic and parasympathetic

Question 24

what are the effectors of autonomic efferent?

Answer 24

• smooth muscle
• cardiac muscle
• glands
• adipose fat tissue

Question 25

how many neurons are between the brain and the effector?

Answer 25

3

Question 26

where is the first neuron of the autonomic efferent?

Answer 26

• cell body is in the brain
• axon is in the brain or spinal cord (CNS)

Question 27

where is the second neuron of the autonomic efferent?

Answer 27

• cell body in the brain or spinal cord (CNS)
• axon in PNS

Question 28

where is the third neuron of the autonomic efferent?

Answer 28

• cell body in the PNS
• axon in PNS

Question 29

what is a ganglion?

Answer 29

collection cell bodies in the peripheral nervous system