Exam 2 - Nervous system brain

Question 1

what does the blood-brain barrier do?

Answer 1

Protects brain from chemical fluctuation, shield from a number of substances

Question 2

___ matter is on the outside of the brain, and ___ matter is on the inside

Answer 2

gray; white

Question 3

the brain’s four main parts and their primary functions

Answer 3

1. Cerebrum - higher brain functions, memory, personality, voluntary muscle movements
2. Diencephalon - homeostasis and emotions
3. Cerebellum - precise muscle movements
4. Brainstem - visceral activities

Question 4

this part of the brain is responsible for interpreting sensory input

Answer 4

parietal lobe (cerebrum)

Question 5

this is the biggest part of the brain

Answer 5

cerebrum

Question 6

outer layer of cerebrum

Answer 6

cerebral cortex

Question 7

the cerebral cortex is composed of ____ matter

Answer 7

gray

Question 8

cerebral cortex’s four sensory sections

Answer 8

parietal lobe, occipital lobe, temporal lobe, insula

Question 9

the _____ lobe interprets sensory information from the skin

Answer 9

parietal

Question 10

the _____ lobe interprets sensory information from the eyes

Answer 10

occipital

Question 11

the _____ lobe deals with memory, emotion, balance, and interprets sensory information from the ears

Answer 11

temporal

Question 12

the _____ interprets sensory information from the tongue

Answer 12

insula

Question 13

the _____ lobe houses motor areas for speech, judgement and problem-solving

Answer 13

frontal

Question 14

the cerebrum can be divided into two ___

Answer 14

hemispheres

Question 15

bundle of nerves that connects the two hemispheres of the cerebrum

Answer 15

corpus callosum

Question 16

Answer 16

corpus callosum

Question 17

this is deep within the cerebral hemisphere and helps facilitate unintentional movement

Answer 17

basal nuclei

Question 18

Answer 18

basal nuclei

Question 19

the frontal and parietal lobes are separated by the

Answer 19

lateral sulcus

Question 20

the frontal and temporal lobes are separated by the

Answer 20

lateral sulcus

Question 21

two important parts of the diencephalon

Answer 21

thalamus and hypothalamus

Question 22

this part of the brain sorts and directs most sensory info to the cerebral cortex

Answer 22

thalamus

Question 23

this part of the brain links endocrine and nervous systems, helping with heart rate, gland secretion and sleep

Answer 23

hypothalamus

Question 24

Answer 24

thalamus

Question 25

Answer 25

hypothalamus

Question 26

The cerebellum is made of two ___

Answer 26

hemispheres

Question 27

The cerebellum's hemispheres are connected by

Answer 27

cerebellar cortex

Question 28

This is the core of the cerebellum and looks like a tree

Answer 28

arbor vitae

Question 29

What is the primary function of the cerebellum?

Answer 29

targeted, precise movement like writing

Question 30

What are the primary functions of the brainstem?

Answer 30

-regulates visceral activities -control of reflexes -pathway for communication btwn brain and spinal column

Question 31

3 parts of brainstem from superior to inferior

Answer 31

Midbrain Pons Medulla oblongata

Question 32

Answer 32

Brainstem: Midbrain Pons Medulla oblongata

Question 33

What part of the brain transmits all ascending and descending impulses between the brain and spinal cord?

Answer 33

Medulla oblongata

Question 34

What are the three centers in the medulla oblongata?

Answer 34

Cardiac center - heart rate Vasomotor center - blood pressure Respiratory center - rate and depth of breathing

Question 35

The brain has cavities that hold cerebral spinal fluid. What are they called?

Answer 35

Ventricles

Question 36

How many brain ventricles are there?

Answer 36

4

Question 37

Answer 37

Lateral ventricles

Question 38

Answer 38

Third ventricle

Question 39

The lateral ventricles are connected to the third ventricle via the

Answer 39

interventricular foramen

Question 40

The third ventricle is connected to the fourth ventricle via the

Answer 40

cerebral aqueduct

Question 41

What are three functions of CSF?

Answer 41

1. Shock absorption 2. Nutrient delivery and waste removal 3. Provides chemicals needed for functioning

Question 42

Answer 42

Fourth ventricle