Cells & Structures

Question 1

The ventricular system contains

Answer 1

cerebrospinal fluid

Question 2

The human brain contains nearly

Answer 2

100 billion neurons

Question 3

The vast majority of neurons in the brain are classified as

Answer 3

interneurons

Question 4

Which statement about white and gray matter is true?

Answer 4

White matter is like insulation

Question 5

Which of the following about cortical columns is true?

Answer 5

They extend through the entire thickness of the cortex

Question 6

Which imaging technique is used for tract tracing?

Answer 6

Horseradish peroxidase (HRP)

Question 7

In terms of its position on your body, your nose is blank and blank

Answer 7

Medial; anterior

Question 8

In the developing fetus, the telencephalon becomes the

Answer 8

cortex

Question 9

Which type of stain is used to reveal the entire neuron with all its processes?

Answer 9

Golgi

Question 10

Which region of the cortex is crucial for motor control?

Answer 10

Precentral gyrus

Question 11

Which of the following best describes the blood-brain barrier?

Answer 11

It is a property of the walls of brain capillaries that prevents large molecules from entering the brain.

Question 12

The blank is the main source of communication between the left and the right hemispheres.

Answer 12

corpus callosum

Question 13

The somatic nervous system includes the

Answer 13

cranial nerves and the spinal nerves

Question 14

The diencephalon becomes the

Answer 14

thalamus and hypothalamus

Question 15

The plane that divides the body into left and right halves is called the blank plane

Answer 15

sagittal

Question 16

The five main divisions of the human brain are visible about blank days after conception

Answer 16

50

Question 17

The central sulcus divides the blank and blank lobes

Answer 17

frontal; parietal

Question 18

Which structure is part of the midbrain?

Answer 18

Tegmentum

Question 19

A group of axons traveling together within the brain is called a

Answer 19

tract

Question 20

Axon terminals

Answer 20

synapse onto other cells

Question 21

Which of the following is not a consequence of parasympathetic activation?

Answer 21

Increased heart rate

Question 22

The peripheral nervous system has blank components:

Answer 22

two

Question 23

In its common usage, the term stroke refers to

Answer 23

brain damage caused by a reduction or blockage of blood flow to the brain

Question 24

A cut in the blank plane would sever all of the tracts that connect the left and right cerebral hemispheres.

Answer 24

mid-sagittal

Question 25

The neuron doctrine

Answer 25

proposed the existence of synaptic contacts between neurons.

Question 26

How many distinct layers are observed in the human cortex?

Answer 26

six

Question 27

Which of the following glial cells interact with blood vessels?

Answer 27

Astrocytes

Question 28

The reason that sympathetic and parasympathetic nervous systems have different effects on the organs is because

Answer 28

they release different neurotransmitters

Question 29

The electrical impulse that stimulates neurotransmitter release, thereby transmitting information to other neurons, arises in the

Answer 29

axon hillock

Question 30

A brain tumor is best imaged by an blank scan

Answer 30

MRI

Question 31

The Spanish anatomist Santiago Ramn y Cajal showed that although neurons come

Answer 31

Neuron doctrine

Question 32

The brainstem consists of the

Answer 32

midbrain, pons, and medulla

Question 33

A nucleus is analogous to a

Answer 33

computer

Question 34

The gaps between segments of myelin are known as

Answer 34

nodes of Ranvier

Question 35

The blank lobe is the most anterior portion of the cerebral cortex

Answer 35

frontal

Question 36

The basal ganglia consists primarily of the caudate nucleus, globus palludis, and

Answer 36

putamen

Question 37

What would be the consequence for a patient with damage to the eighth cranial nerve?

Answer 37

Impaired balance

Question 38

A researcher interested in determining which brain regions are active when an animal subject performs a particular behavior will most likely make use of which procedure?

Answer 38

Immunocytochemistry (ICC)

Question 39

In terms of its position on his body, the top of a dogs head is

Answer 39

dorsal

Question 40

Which of the following is in the correct order of size from largest to smallest?

Answer 40

An axon terminal; a synaptic cleft; the thickness of the neuronal membrane; the diameter of an ion channel