The Central Nervous System

Question 1

GREY MATTER

Answer 1

• Contains mostly cell bodies, dendrites and short, unmyelinated axons.
• Found around the outside areas of the brain and forms the H-shaped core of the spinal cord.

Question 2

WHITE MATTER

Answer 2

• Contains myelinated axons that run together in tracts.

- Forms the inner region of some areas of the brain and the outer area of the spinal cord.

Question 3

MENINGES

Answer 3

Three layers of tough, elastic tissue within the skull and spinal column, directly enclose the brain and spinal cord.

Question 4

BLOOD-BRAIN BARRIER

Answer 4

• Protective barrier formed by glial cells and blood vessels that separates the blood from the central nervous system.
• Selectively controls the entrance of substances into the brain from the blood.

Question 5

CEREBELLUM

Answer 5

Controls the muscle coordination and muscle.

Question 6

MEDULLA OBLONGGATA

Answer 6

Controls subconscious activities, such as heart rate, blood pressure, breathing, swallowing, and vomiting.

Question 7

PONS

Answer 7

Relays information between the cerebellum and cerebral cortex.

Question 8

THALAMUS

Answer 8

• Connects various parts of the brain

- Relays information from the senses

Question 9

HYPOTHALAMUS

Answer 9

• Regulates the pituitary gland, heart rate, blood pressure, and temperature
• Controls drives such as hunger, thirst, and sexual desire.

Question 10

FRONTAL LOBES

Answer 10

• Associated with conscious though, intelligence, memory, and personality.
• Control voluntary muscle movements.

Question 11

TEMPORAL LOBES

Answer 11

Involved in auditory reception.

Question 12

PARIETAL LOBES

Answer 12

Receive sensory information from the skin, and process information about body position.

Question 13

OCCIPITAL LOBES

Answer 13

Process visual information.

Question 14

CORPUS CALLOSUM

Answer 14

Connects the right and left cerebral hemispheres through nerve tracts.