Organization of Central Nervous System

Question 1

Telencephalon (Cerebrum): Function
Cerebral Cortex
Basal Ganglia 
Hippocampus
Amygdala

Answer 1

Perceptual, motor, and cognitive function

Question 2

Telencephalon (Cerebrum): Location

Answer 2

Largest & most superior

Question 3

Diencephalon: Function

Thalamus

Answer 3

Processes most of the information reaching the cortex

Question 4

Diencephalon: Function

Hypothalamus

Answer 4

Regulates autonomic and endocrine function

Question 5

Diencephalon: Location

Answer 5

Surrounded by the cerebral hemispheres; superior to the midbrain

Question 6

Midbrain*: Function

Answer 6

Controls sensory and motor function

ex. eye movement & coordination of visual and auditory reflexes

Question 7

Midbrain*: Location

Answer 7

Inferior to diencephalon, superior to pons

Question 8

Hindbrain: Function

Cerebellum

Answer 8

Modulates the force and range of movement and is involved in the learning of motor skills

Question 9

Hindbrain: Function

Pons*

Answer 9

Relays information about movement and sensation from the cerebral cortex to cerebrum

Question 10

Hindbrain: Function

Medulla Oblongata*

Answer 10

Responsible for several vital autonomic function

Question 11

Hindbrain: Location

Cerebellum

Answer 11

Posterior to pons

Question 12

Hindbrain: Location

Pons*

Answer 12

Inferior to the midbrain

Superior to the medulla oblongata

Question 13

Classifications of Groups of Neurons: Gray Matter

Answer 13

Contains neuronal cell bodies, dendrites, unmyelinated axons and glial cells

Question 14

Gray Matter: Location

Answer 14

Brain: Occupies the superficial outer layer (cerebral cortex) and some deeper regions ( basal ganglia/nuclei)
Spinal Cord: Occupies the central H-shaped horns, in the nuclei of the dorsal and ventral horns

Question 15

Classifications of Groups Neurons: White Matter

Answer 15

Contains myelinated axons and oligodendrocytes

Question 16

White Matter: Location

Answer 16

Brain: Occupies deeper regions

Spinal Cord: Occupies peripheral region (area the surrounds horns)

Question 17

Surface Coverings-Meninges: Function

Answer 17

Encase the brain and spinal cord

Question 18

Surface Coverings-Meninges: Types

1. Dura Mater (Outermost layer)

Answer 18

• Sheath of dense CT
• Continous with the periosteum of the skull, but separate from the vertebrae in the spine by the epidural space
• Separated from the arachnoid mater by the subdural space

Question 19

Surface Coverings-Meninges: Types

2. Arachnoid Mater (Middle Layer)

Answer 19

• A cellular layer in contact with the dura mater and a system of trabeculae connected to pia mater
• cavities b/w the subarchnoid space form the subarachnoid space, filled with CSF

Question 20

Surface Coverings-Meninges: Types

3. Pia Mater (Innermost Layer)

Answer 20

-Sheath of loose CT lying directly on the surface of the nervous tissue