Sample / homework questions exam 2

Question 1

What type of channel opens in response to an action potential arriving at the axon terminal and functions to allow synaptic vesicles to release neurotransmitters?

Answer 1

Voltage gated Ca2+ channels

Question 2

Where are nicotinic ACh receptors located in the body? What is an example of drugs that stimulate this receptor?

Answer 2

Skeletal muscle cells, nicotine

Question 3

Postganglionic neuron neurotransmitter is norepinephrine

Answer 3

SNS

Question 4

Postganglionic neuron Neurotransmitter is Acetylcholine

Answer 4

PSNS

Question 5

Rest and Digest

Answer 5

PSNS

Question 6

Fight or flight

Answer 6

SNS

Question 7

Postsynaptic inhibition is produced by

Answer 7

Hyperpolarization of the postsynaptic membrane

Question 8

Suppose the net summation of EPSPs and IPSPs brings the membrane potential of the postsynaptic neuron to -51mV. Will an action potential occur in the post synaptic neuron?

Answer 8

Yes

Question 9

Clusters of neuron cell bodies where the two neurons of your autonomic system meet is termed:

Answer 9

Ganglia

Question 10

A rapid decrease in sodium permeability and simultaneous increase in potassium permeability is responsible for

Answer 10

The repolarization of the cell

Question 11

In the autonomic nervous system, two divisions have antagonistic effects on one another
___ will increase the rate of depolarization of the pacemaker cells
____ will decrease the rate of depolarization of the pacemaker cells

Answer 11

Sympathetic, Parasympathetic

Question 12

Association areas of the brain

Answer 12

Integrate new sensory inputs with memories of past experiences

Question 13

Choose the answer that correctly lists, in chronological order, the events involved in synaptic transmission from pre to post-synaptic cells
A: A nerve impulse reaches the axon terminal
B: Neurotransmitter molecules diffuse across the synaptic cleft
C: An action potential begins in the postsynaptic cell
D: Neurotransmitter molecules bind to receptors in the postsynaptic cell
E: A voltage change occurs in the postsynaptic cell

Answer 13

A, B, D, E, C

Question 14

Depolarizing potential in post synaptic neuron; response to excitatory synapse activation

Answer 14

ESPS

Question 15

Innervates skeletal muscle

Answer 15

Somatic Nervous System

Question 16

Innervates cardiac muscle, smooth muscle, and glands

Answer 16

Autonomic Nervous System

Question 17

Preganglionic fibers leave CNS from brainstem and sacral portions of spinal cord

Answer 17

PSNS

Question 18

Preganglionic fibers leave CNS from brainstem and lumbar portions of spinal cord

Answer 18

SNS

Question 19

Controls functions such as breathing and heart ratee

Answer 19

Medulla oblongata

Question 20

Most complex integrating areas of the nervous system; aids in processing information into perceptual images

Answer 20

Cerebral cortex

Question 21

Insulating material covering axons

Answer 21

Myelin

Question 22

where is epinephrine secreted from?

Answer 22

Adrenal medulla

Question 23

Where is antidiuretic hormones secreted from

Answer 23

Posterior pituitary

Question 24

What is the function of insulin

Answer 24

Promotes cellular uptake of gluce

Question 25

What is the function of Cortisol?

Answer 25

Inhibits inflammation and immune response, maintains blood pressure

Question 26

This hormone raises plasma concentration of blood sugar by decreasing the storage of sugar and releasing stored glucose

Answer 26

Glucagon

Question 27

Antidiuretic hormone land oxytocin and synthesized in the

Answer 27

Hypothalamus

Question 28

A neurotransmitter binds to a gated ion channel in the postsynaptic cell, causing a depolarization. functionally this neurotransmitter can be classified as excitatory

Answer 28

True