Review

Question 0

Metabotropic

Answer 0

when glutatate attaches at first nothing happens because mg2+ blocks it

repeated flood of sodium into the cell ejects the magnesium = turns NMDA site into AMPA site

repeated firings of the circuit: then it re-arranges - the more you use it the easier it is

receptor site separate from ion channel (usually)

Question 1

ionotropic (AMPA)

Answer 1

directly opens a channel that allows sodium to enter the cell

Question 2

activation of the AMPA sites changes…

Answer 2

…the post-synaptic cell

Question 3

Dendritization

Answer 3

building new receptor sites

Question 4

NE

Answer 4

jolt of emotion enables you to remember

absent during REM sleep = maybe why we’re not storing those dreams

Question 5

Spatial abilities involve

Answer 5

a variety of parts of the brain

hippocampus

Question 6

Hippocampus and spatial memories

Answer 6

place cells: array of cells, create cognitive map

Question 7

Retino-hypothalamic path

Answer 7

diaurnal clock - SCN (suprachiasmic nucleus): in the dark you will maintain a rhythm of awake and asleep
- regularity of 24 hours and flexibility to adapt to the seasons

interaction between the hypothalamus (SCN)

from the eye to the SCN to the pineal gland and back

Question 8

zeitgeber

Answer 8

when full spectrum sunlight enters system it turns on ganglion cells (receptor cells) that follow their own path within the optic nerve to the SCN of the hypothalamus - to inform that nucleus whether it’s day or night

influences exchange of info between pineal gland and SCN

Question 9

pineal gland

Answer 9

releases melatonin

SCN tells it that it’s day which shuts down production of melatonin

less sun = more melatonin

Question 10

G-Protein

Answer 10

bonds with second messengers

opens the gate and allows ions to flow into the cell

Metabotropic process

Question 11

Testes Determining Factor

Answer 11

on Y chromosome

turns on testosterone = directs changes, allows Wolffian system to develop