P/S 3

Question 1

What is a neurohypophysis?

Answer 1

Another name for posterior pituitary- axonal projections into hypothalamus

Question 2

Which pituitary is not part of the diencephalon of the neural tube?

Answer 2

Anterior pituitary - not diencephalon

Not part of CNS = doesn’t derive from neural tube

Question 3

What controls circadian rhythm?

Answer 3

-Melatonin of pineal gland and suprachiasmatic nucleus of hypothalamus

Question 4

What does FSH and LH do in males and females?

Answer 4

FSH- males- spermatogenesis; Females- follicle maturation

LH- males- testosterone synthesis; females- ovulation

Question 5

What is a glucocorticoid?

Answer 5

Cortisol / corticosteroid

From ACTH

Question 6

Agonist

Answer 6

mimic action of nt

Question 7

Antagoninst

Answer 7

Inhibit action of nt

Question 8

Cephalons

Answer 8

Prosencephalon, Mesencephalon, Rhombencephalon
Pros- Tele, Di
Tele = cortex, basal ganglia, limbic system
Di = thalamus, hypothalamus, PP, pineal

Mes = midbrain

Rhomb = Met (pons, cerebellum), Myel (medulla)

Question 9

Probability of 2 independent events

Answer 9

P (A and B) = P(A) x P(B)

P (A or B) [A U B] = P(A) + P(B) - P(A and B)

Question 10

Signal detection theory

Answer 10

• can use past experiences to respond (or not) to stimuli

- sensation and perception affected by internal and external factors, including experience/expectations

Question 11

Mirror neurons can be measured w/ which technology?

Answer 11

fMRI

Question 12

Where are the inferior and superior COLLICULI?

Answer 12

midbrain

-sensorimotor reflexes like startle reflex

Question 13

What is the reticular formation?

Answer 13

• connects cerebrum, cerebellum, and spinal cord

- in the hindbrain w/ cerebellum and medulla

Question 14

Depression

Answer 14

-low serotonin and norepi

Question 15

Mania

Answer 15

• high serotonin, norepi, dopamine

- also anxiety

Question 16

Dopamine

Answer 16

-substance abuse, love, gambling

movement, emotion, rewards

Question 17

THC = tetrahydrocannibol = cannabis

-marijuana

Answer 17

hallucinations AND APPETITE and LOW BP

• stimulate, depressant, and hallucinate
• increased dopamine and GABA

Question 18

opiates

Answer 18

• less breathing

- less pain

Question 19

cocaine

Answer 19

dopamine reuptake enzymes

-restless, agitated, impulsive

Question 20

Habituation vs Adaptation

Answer 20

Adaptation

• purely physiological; neurons = NO CONSCIENCE
• constant stimuli frequency, varying intensities
• feeling of shirt disappearing
• forgetting the smell of home

Habituation

• stop paying attention
• accustom to loud noises
• increased freq / high freq exposure = decrease response !!!
• non-associative learning

Question 21

Retrieval is an aspect of….

Answer 21

the LONG term memory

Question 22

Can’t remember past class stuff but remember current stuff is…

Answer 22

synaptic pruning

Question 23

If you say a past classmate name and now you remember many more classmates…

Answer 23

retrieval cue/priming

Question 24

Near oval window

Answer 24

high pitch frequencies

-place theory

Question 25

Rubbing hands together

Answer 25

gate theory of pain

Question 26

Threshold theory of pain

Answer 26

-signal for pain not detected until crosses minimum limit

Question 27

Sensory adaptation must be…

Answer 27

…over time