Autonomic Nervous System

Question 1

What is the ANS responsible for the regulation of?

Answer 1

involuntary movements

Question 2

The 2 divisions of the ANS are

Answer 2

Sympathetic and parasympathetic

Question 3

Which division of the ANS is responsible for the “fight or flight” response?

Answer 3

sympathetic

Question 4

The neurotransmitter released by sympathetic postganglionic neurons is

Answer 4

norepinephrine

Question 5

What are examples of a target organ of the sympathetic division?

Answer 5

blood vessels, heart, adrenal glands

Question 6

The neurotransmitter released by parasympathetic postganglionic neurons is

Answer 6

ACh

Question 7

The parasympathetic division of the ANS is responsible for

Answer 7

constriction of pupils
increased gi motility
decreased heart rate
increased saliva

Question 8

Which are some functions of the ANS?

Answer 8

Regulation of heart rate
control of digestion
regulation of bp

Question 9

The autonomic ganglia are located

Answer 9

outside the CNS

Question 10

The sympathetic division of the ANS is responsible for

Answer 10

dilation of bronchioles
dilation of pupils
decreased salivation
constriction of certain blood vessels

Question 11

the parasympathetic division of the autonomic nervous system is dominant during

Answer 11

relaxation and digestion

Question 12

The sympathetic chain ganglia are located

Answer 12

near the spinal cord

Question 13

What are some characteristics of the parasympathetic division?

Answer 13

decreased heart rate
constriction of pupils
increased salivation

Question 14

The adrenal medulla is an example of a

Answer 14

sympathetic ganglion

Question 15

The ANS is primarily regulated by the

Answer 15

brainstem

Question 16

The preganglionic neurons of the sympathetic division originate from the

Answer 16

lumbar and thoracic spinal cord

Question 17

What are the functions of the sympathetic division?

Answer 17

dilation of bronchioles

Question 18

The sympathetic division is activated in response to

Answer 18

stress and emergencies

Question 19

The ANS regulates

Answer 19

involuntary movements

Question 20

The parasympathetic division is associated with

Answer 20

relaxation and conservation of energy

Question 21

The neurotransmitter released by sympathetic preganglionic neurons is

Answer 21

ACh

Question 22

Define Receptor

Answer 22

a cell or group of cells that receive information from a stimulus

Question 23

Define Effector

Answer 23

an organ, muscle or gland that responds to the control of an autonomic or somatic or endocrine signal

Question 24

Parasympathetic nervous system

Answer 24

PNS
Rest and digest, sometimes referred to as the craniosacral division of ANS because of the pregnaglionic neurons

Question 25

Sympathetic nervous system

Answer 25

SNS Fight or flight response

Question 26

define preganglionic

Answer 26

neurons that originate in the brainstem or spinal cord

Question 27

define postganglionic

Answer 27

neurons that are distal to the ganglion

Question 28

Where do sympathetic preganglion originate?

Answer 28

thoracolumbar region of spinal cord T1--L2/L3

Question 29

Where do sympathetic postganglion neurons originate?

Answer 29

sympathetic ganglia, near spinal cord

Question 30

What do sympathetic pre ganglion release and target?

Answer 30

release ACh targeting nicotinic ACh receptors on post ganglionic neurons

Question 31

What do sympathetic post ganglion release and target?

Answer 31

release norepinephrine targeting adrenergic receptor (alpha and beta) on target cells

Question 32

Where do parasympathetic pre ganglion neurons originate?

Answer 32

in brainstem and sacral region (craniosacral) of spinal cord S2-24

Question 33

Where do parasympathetic post ganglion originate?

Answer 33

in ganglia near or inside target organs (terminal ganglia)

Question 34

What do parasympathetic pre ganglion release and target?

Answer 34

release ACh targeting nicotinic ACh receptors on postganglionic neurons

Question 35

what do parasympathetic post ganglion release and target?

Answer 35

release ACh targeting muscarinic ACh receptors on target cells

Question 36

What activates nicotinic receptors?

Answer 36

ACh

Question 37

What activates muscarinic receptors?

Answer 37

ACh

Question 38

What activates adrenergic receptors?

Answer 38

norepinephrine

Question 39

Components of reflex arc

Answer 39

receptor sensory afferent neuron integration center in CNS motor efferent neuron effector

Question 40

Are autonomic nervous system ganglia inside or outside of the CNS

Answer 40

outside