7.3 CNS Subcortical 1

Question 1

Diencephalon parts

Answer 1

Thalamus, tuner router directing info
hypothalamus, autonomic nervous sys.
Pineal gland, hormone melatonin, clock

Question 2

Hypothalamus functions

Answer 2

-controls ANS
-regulates pituitary gland
-hunger and thirst
-body temp.

Question 3

Pineal gland functions

Answer 3

• Hormone melatonin - released in dark
• adjusts perception of day/ bio clock

Question 4

Back of the midbrain

Answer 4

Tectum, four bumps called the corpora quadrigemina

Question 5

Corpora Quadrigemine

Answer 5

Two Superior colliculi
- visual reflex
Two Inferior colliculi
- auditory reflex

Question 6

Medulla Oblongata roles

Answer 6

• Cardiovascular center: HR & BP
• Rhythmicity center: sets basal Resp. Rate

Question 7

Pons roles

Answer 7

• Adjusts respiratory rate in response to CO2 in blood (pH)

Question 8

Chain of signal for holding breath

Answer 8

Cerebrum to Pons to Medulla Oblongata to muscles

Question 9

Cerebellum functions

Answer 9

Adjusts movements, determines position of limbs and joints, adjusts motor commands accordingly

Question 10

Vestibular apparatus

Answer 10

In the ear, converts movement to AP, feels gravity and motion in space