Nervous System Part 2/ Brain

Question 1

What are the four regions of the brain?

Answer 1

The cerebral hemispheres, diencephalon, brain stem, and the cerebellum

Question 2

What are the two different cerebral hemispheres of the brain?

Answer 2

The left and right

Question 3

What are gyri?

Answer 3

The elevations of the surface of the brain

Question 4

What are sulci?

Answer 4

The grooves and dips of the surface of the brain

Question 5

What are fissures?

Answer 5

Deep grooves on the surface of the brain

Question 6

What are the four lobes of the cerebrum?

Answer 6

Frontal, parietal, temporal, and occipital

Question 7

What does the cerebral cortex control?

Answer 7

The conscious mind; awareness, remembering, understanding, communication, and voluntary movement

Question 8

What controls awareness, remembering, understanding, communication, and voluntary movement?

Answer 8

The cerebral cortex

Question 9

Where does grey matter reside?

Answer 9

On the surface of the cerebral cortex

Question 10

How thick is grey matter? What percentage of brain mass does it make up?

Answer 10

It’s 2-4mm thick, and it makes up 40% of brain mass

Question 11

What do the convolutions do?

Answer 11

They triple the surface area

Question 12

What do the hemispheres of the cerebellum control?

Answer 12

Contralateral function/ senses

Question 13

Describe the hemispheres

Answer 13

They’re symmetric in structure but not in function

Question 14

What does conscious behavior involve?

Answer 14

All areas of the cerebral cortex

Question 15

What is cerebral white matter?

Answer 15

It’s myelinated fibers and their tracts

Question 16

What does cerebral white matter do?

Answer 16

It’s responsible for communication

Question 17

What are the three types/ sections of ventricles?

Answer 17

The lateral, third, and fourth ventricles.

Question 18

What do ventricles do?

Answer 18

They hold and circulate CSF

Question 19

Where are the ventricles?

Answer 19

Inside the brain

Question 20

What is the diencephalon?

Answer 20

It’s the areas of grey matter around the third ventricle

Question 21

What are the three sections of the diencephalon?

Answer 21

Thalamus, hypothalamus, and epithalamus

Question 22

What does multimodal association do in regard to inputs and outputs?

Answer 22

It receives inputs from multiple senses with outputs to multiple areas

Question 23

What does multimodal association do?

Answer 23

It gibes meaning to information, stores it in memories, ties it to previous experiences, and decides what action to take

Question 24

What makes us who we are?

Answer 24

Multimodal association

Question 25

What are the three parts of multimodal association?

Answer 25

Anterior, posterior, and limbic association

Question 26

Where does anterior association happen?

Answer 26

In the prefrontal cortex

Question 27

What does anterior association control?

Answer 27

It controls intelligence, cognition, recall, and personality.

Question 28

What type of multimodal association matures slowly and depends on the social environment?

Answer 28

Anterior association

Question 29

What does posterior association do?

Answer 29

It recognizes patterns and faces, localizes us in space, binds sensory inputs into a coherent whole, and is in charge of language

Question 30

What does limbic association control?

Answer 30

It's in charge of emotional impact, your sense of danger, and the memories to remember the two

Question 31

What type of multimodal association controls your sense of danger and emotional impact?

Answer 31

Limbic association

Question 32

What is lateralization?

Answer 32

The division of labor between hemispheres

Question 33

What is the division of labor between hemispheres called?

Answer 33

Lateralization

Question 34

What is cerebral dominance?

Answer 34

Which hemisphere is in dominant in language (left for most people)

Question 35

What hemisphere controls language, math, and logic?

Answer 35

The left

Question 36

Which hemisphere controls insight, visual-spatial skills, intuition, and artistic skills?

Answer 36

The right

Question 37

What is a brain wave?

Answer 37

The general electrical activity of the parts of the cerebral cortex

Question 38

What is the general electrical activity of the parts of the cerebral cortex called?

Answer 38

Brain waves

Question 39

What does consciousness involve?

Answer 39

The activity of large areas of the cerebral cortex

Question 40

What is sleep? What can awake you?

Answer 40

Sleep is partial unconsciousness, and stimuli can wake you up

Question 41

What happens when the Broca's area is damaged?

Answer 41

You can understand but not speak

Question 42

What happens when the Wernike's area is damaged?

Answer 42

You can speak, but your words are random and jumbled

Question 43

What side of the brain is involved in body language?

Answer 43

The right side

Question 44

What can cause imbalances in the brain?

Answer 44

Traumatic brain injury, cerebrovascular accidents, and degenerative brain disorders

Question 45

How long is the adult spinal cord?

Answer 45

About 18 inches long

Question 46

How wide is the adult spinal cord?

Answer 46

About 1/2 an inch long

Question 47

Where does the adult spinal cord end?

Answer 47

Between L1 and L2