2.1 The Brain Part 2

Question 1

What is the main function of the CSF?

Answer 1

cushions the brain by allowing it to float

Question 2

What is the blood-brain barrier?

Answer 2

diffusion barrier that prevents most particles from entering the CNS; keeps the brain and spinal cord separate from general blood circulation

Question 3

What cells form the blood brain barrier?

Answer 3

astrocytes

Question 4

Why is it important to maintain the blood brain barrier?

Answer 4

maintain a stable chemical environment for the nervous system

Question 5

What is the foremost part of the brain?

Answer 5

cerebrum

Question 6

What is the largest part of the brain?

Answer 6

cerebrum

Question 7

What are the two sections of the cerebrum?

Answer 7

left and right cerebral hemispheres

Question 8

What separates the left and right cerebral hemispheres from one another?

Answer 8

median longitudinal fissure

Question 9

What side of the body does the left cerebral hemisphere control?

Answer 9

right side

Question 10

What side of the body does the right cerebral hemisphere control?

Answer 10

left side

Question 11

What are gyri?

Answer 11

raised ridges of tissue in the cerebral cortex

Question 12

What are sulci?

Answer 12

the shallow grooves in the cerebral cortex

Question 13

What are fissures in the cerebrum?

Answer 13

deep grooves that separate large regions of the brain

Question 14

What separates the cerebrum from the cerebellum?

Answer 14

transverse fissure

Question 15

What is the corpus callosum?

Answer 15

bridge of white nerves that connect the cerebral hemispheres together

Question 16

What color is the cerebral cortex?

Answer 16

gray

Question 17

What are the four surface lobes of the cerebrum?

Answer 17

frontal
parietal
temporal
occipital

Question 18

What is the function of the frontal lobe?

Answer 18

controls higher level executive functions such as reasoning and decision making
controls motor functions
permits control over voluntary muscle actions

Question 19

What is the function of the parietal lobe?

Answer 19

receives sensory information from receptors in the mouth for taste as well as sensory receptors in the skin such as touch, pressure, and pain

Question 20

What is the function of the occipital lobe?

Answer 20

interprets visual input