ATE 1110

Question 1

Dura mater

Answer 1

Outer most layer. Tough and fibrous.

Question 2

Arachnoid

Answer 2

Delicate, spiderweb-like middle layer.

Question 3

Pia mater

Answer 3

Very thin layer that lies directly on the surface of brain and spinal cord.

Question 4

Diencephalon

Answer 4

Nervous system passageway between primitive brain stream and cerebrum.

3 major structures; thalamus, hypothalamus, pituitary.

Question 5

Thalamus

Answer 5

Acts as a relay station for regulating sensory inputs to the cerebrum.

Question 6

Hypothalamus

Answer 6

Interface between nervous system and endocrine system.

Also plays major roles in temperature regulation, hunger, thirst, and components of rage and anger responses.

Question 7

Pituitary

Answer 7

Endocrine “master gland” that regulates production and release of hormones throughout the body.

Question 8

Brainstem

Answer 8

Connection between the rest of the brain and spinal cord.
Most primitively part of the brain and composed of the medulla, oblongata, the pons and the midbrain.

Maintain basic support functions.
Operates on subconscious level.

Question 9

Cerebrum

Answer 9

Made up of grey matter in cerebral cortex (outermost superficial layer of brain) and white matter between the cortex, including corpus callosum (set of fibers that connect two halves of the cerebral cortex).

Largest part of brain.
High-order behaviors; learning, reasoning, intelligence.

Question 10

I. Olfactory

Answer 10

Sensory

Smell

Question 11

II. Optic

Answer 11

Sensory

Vision

Question 12

III. Oculomotor

Answer 12

Movement

Eye movement, pupil size, lens focusing

Question 13

IV. Trochlear

Answer 13

Motor

Eye movement

Question 14

V. Trigeminal

Answer 14

Both

Sensations from head and teeth, chewing

Question 15

VI. Abducent

Answer 15

Motor

Eye movement

Question 16

VII. Facial

Answer 16

Both

Face and scalp movement, salivation, tears, Taste

Question 17

VIII. Vestibulocochlear

Answer 17

Sensory

Balance, hearing

Question 18

IX. Glossopharyngeal

Answer 18

Both

Tongue movement, swallowing, salivation, taste

Question 19

X. Vagus (wanderer)

Answer 19

Both
Sensory from GI tract and resp. Tree; motor to larynx, pharynx, parasympathetic m, motor to abdominal and thoracic organs

Question 20

XI. Accessory

Answer 20

Motor

Head movement, accessory motor with vagus

Question 21

XII. Hypoglossal

Answer 21

Motor

Tongue movement

Question 22

Meninges

Answer 22

A set of connective tissue layers that surround the brain and spinal cord. 3 layers.

Contain rich network of blood vessels that supply nutrients and oxygen to superficial tissues of brain and spinal cord.
Also provide some cushion.