Ch 15 eoc

Question 1

Bundles of axons within the brain and spinal cord are called

Answer 1

Tracts

Question 2

OPening ligand gated sodium channels on a post synaptic neuron will likely result in

Answer 2

Depolarization, an EPSP, a decrease in membrane potential, diffusion of sodium into the neuron

Question 3

What can occur on a single neuron but does not occur on a single skeletal muscle cell

Answer 3

Spatial summation

Question 4

What consists primarily of neuron cell bodies? What doesn’t?

Answer 4

Spinal cord horn, brain nucleus, cerebral cortex, ganglion. Nerves don’t.

Question 5

What is assocaited with an indirect effect of a NT? WHat isn’t?

Answer 5

G protein, cAMP, membrane bound enzyme, membrane receptor. Not Resting membrane potential

Question 6

The efferent division of the nervous system is a subdivision of the

Answer 6

PNS

Question 7

The spinal cord X consists of collections of myelinated axons

Answer 7

COlumn

Question 8

What is associated with a second messenger system? What isn’t?

Answer 8

cAMP, g protein, ligand, membrane bound enzymes. Intracell receptors aren’t.

Question 9

Would opening a ligand gated Cl- channel with the membrane potential at the RMP make Cl- go out of the cell?

Answer 9

No

Question 10

opening a ligand gated Cl- channel with the membrane potential at the RMP would make

Answer 10

The cell hyperpolarize
Cause an ibhibitory effect
Increast the membrane potential
Make the membrane potential more negative

Question 11

Does continuous impulse connection happen on myelinated azons?

Answer 11

Yes

Question 12

Where does continuous impulse connection happen?

Answer 12

Type A axons

Question 13

What is true about the ANS?

Answer 13

It uses Class B axons
Subdivision of the efferent division of the CNS
Uses Class C axons
Pre/postganglionic neurons

False- Motor and sensory division

Question 14

What are parts of an action potential?

Answer 14

Repolarization, refractory period, decrease in membrane potential, reverse of membrane polarity

Question 15

What performs myelination within the CNS?

Answer 15

Oligodendrocytes

Question 16

The X is AKA the sheath of schwann and is important in axon regeneration

Answer 16

Neurolemma

Question 17

Interneurons are aka X, which literally means “messenger”

Answer 17

Internuncial

Question 18

Nodes of Ranvier are aka X nodes

Answer 18

Neurofibril

Question 19

The cytoplasm around a neuron’s nucleus is aka

Answer 19

Perikaryon

Question 20

Ciliated glial cells are aka X cells

Answer 20

Ependymal

Question 21

The X sensory division conducts impulses from smooth muscle and cardiac muscle

Answer 21

Visceral

Question 22

The thoracolumbar division is aka the X division

Answer 22

Sympathetic