Exam 1

Question 1

Which tissue produces cerebrospinal fluid?

Answer 1

Choroid plexus

Question 2

The _____ lobe is mainly responsible for processing touch and pressure information.

Answer 2

Parietal

Question 3

Where is the primary motor cortex found?

Answer 3

The precentral gyrus in the frontal lobe

Question 4

The ____lobe is primarily responsible for processing auditory information.

Answer 4

temporal

Question 5

Where are the nodes of Ranvier located?

Answer 5

unmyelinated regions of myelinated axons

Question 6

The white matter of the spinal cord contains_____.

Answer 6

Myelinated axons

Question 7

The gray matter of the spinal cord contains ____ and _____.

Answer 7

Cell bodies; dendrites

Question 8

Name an advantage of myelination.

Answer 8

conduction speed and energy conservation

Question 9

Which kind of synapse produces presynaptic inhibition?

Answer 9

axoaxonic

Question 10

What does presynaptic inhibition do?

Answer 10

reduces neurotransmitter release when an action potential arrives

Question 11

______produce myelin in the central nervous system.

Answer 11

Oligodendrocytes

Question 12

The central nervous system consists of the ______ and ________.

Answer 12

brain; spinal cord

Question 13

What organelle in the soma synthesizes protein?

Answer 13

ribosomes

Question 14

Which glial cells comprise part of the blood-brain barrier?

Answer 14

astrocytes

Question 15

Which ion enters when a neuron reaches the threshold of excitation?

Answer 15

sodium (Na+)

Question 16

During a resting potential, there is a high concentration of positive _____ ions inside a neuron.

Answer 16

potassium

Question 17

Where does integration mainly occur on multipolar neuron?

Answer 17

axon hillock

Question 18

What is integrated at the axon hillock?

Answer 18

EPSPs and IPSPs

Question 19

The threshold of excitation is about _____ mV.

Answer 19

-40

Question 20

______ remove debris and act like immune cells.

Answer 20

Microglia

Question 21

What is the most common method for terminating the action of a neurotransmitter?

Answer 21

reuptake

Question 22

What do mitochondria provide for cells like neurons?

Answer 22

ATP

Question 23

Which type of receptor contains receptor sites surrounding a central pore?

Answer 23

Ionotropic

Question 24

Which ion movements produce an IPSP?

Answer 24

K+ or Cl- in

Question 25

When autoreceptors detect the neurotransmitter released by their own neuron, they mainly generate____.

Answer 25

IPSPs

Question 26

Name a retrograde neurotransmitter.

Answer 26

endocannabinoids, Nitrus Oxide, NGF

Question 27

A____ is a molecule that binds to a receptor.

Answer 27

Ligand

Question 28

A drug functions as as _____ when it facilitates the action of neurotransmitter.

Answer 28

agonist

Question 29

The final target of the 2nd messenger system is the cell ____.

Answer 29

body

Question 30

Which process allows neurotransmitter to travel through the extracellular fluid until it reaches distant receptors?

Answer 30

Volume transmission

Question 31

Where are proteins manufactured?

Answer 31

Cell body

Question 32

Which cortical lobe processes touch?

Answer 32

Parietal lobe

Question 33

Which brain region filters and distributes sensory information?

Answer 33

thalamus

Question 34

_____, which include drugs and neurotransmitters, are molecules that bind to receptors.

Answer 34

Ligands

Question 35

Where are vesicles stored?

Answer 35

Terminal buttons

Question 36

_____ remove neurotransmitters from the synaptic cleft.

Answer 36

Reuptake transporters

Question 37

Dendrites cannot usually conduct action potentials because they lack….

Answer 37

voltage-gated ion channels