Limbic System

Question 1

What the hell does the Limbic system do?

Answer 1

It’s a collection of neural structures involved in EMOTION, LONG TERM MEMORY, OLFACTION, BEHAVIOR, and ANS

fighting, feeding, fleeing, feeling, and fucking

Question 2

Structures of Limbic system

Answer 2

mammillary bodies, cingulate gyrus, hippocampus, amygdala, fornix

Question 3

Functions of hypothalamus

Answer 3

TAN HATS
Thirst, Adenohypophysis ( controls anterior pituitary), Neurohypophysis (releases hormones made in the hypothalamus, Hunger, Autonomic regulation, Temperature, Sex

Question 4

What makes ADH

Answer 4

supraoptic nucleus of hypothalamus

Question 5

What makes oxytocin

Answer 5

Paraventricular nucleus

Question 6

Anterior hypothalamus

Answer 6

Thermal regulation (A/C = anterior cooling)

Question 7

Preoptic area of hypothalamus

Answer 7

GnRH

Question 8

Suprachiasmatic nucleus

Answer 8

Circadian rhythm, receives input from the retina about day/night status

Question 9

Lateral nucleus

Answer 9

Eating. Destruction = anorexia. Zap your lateral nucleus and you shrink laterally

Inhibited by leptin

Question 10

Ventromedial nucleus

Answer 10

Satiety…stimulated by leptin

Question 11

Posterior nucleus

Answer 11

conserves heat….opposites of anterior nucleus

Question 12

Mamillary body

Answer 12

destruction = wernickes encephalopathy

Question 13

Pre-optic area secretes

Answer 13

GnRH…estrogen stops this

Question 14

ADH and oxytocin are made by hypothalamus but stored where

Answer 14

Neurohypophysis (posterior pituitary

Question 15

Remember leptin means,,,

Answer 15

FULLLL

Question 16

Oxytocin function

Answer 16

Love hormone, also stimulates birth and brings the uterus back to normal size after birth.
Nipple stimulation leads to oxytocin release which helps with breasfeeding

Question 17

Melatonin secreted by

Answer 17

Pineal gland. Increases during darkness. Can suppress libido

Question 18

Which hypothalamic nuclei are involved in controlling the appetite

Answer 18

• Lateral nucleus- zap it and you shrink laterally, stimulate it and you eat.
• ventromedial- zap it and you grow ventromedial, stimulate it and you’re satisfied.
  REMEMBER>…LEPTIN= FULL, Ghrelin= growlin

Question 19

Which areas of hypothalamus activate parasympathetic nervous system

Answer 19

Anterior and preoptic nucleus

Question 20

Which hypothalamic areas activate sympathetic nervous system

Answer 20

Posterior and