thalamic and hypothalamic nuclei

Question 1

lateral area of the hypothalamus is in charge of?

Answer 1

hunger

Question 2

if you lesion your lateral hypothalamus you…

Answer 2

lose weight laterally (bc lateral hypothal = hunger —-> now you have anorexia)

Question 3

the ventromedial area of the hypothal. is in charge of?

Answer 3

satiety

Question 4

if you lesion the ventromedial hypothal you…

Answer 4

grow in the ventral and medial areas, bc the ventrolat. region = satiety, so if you lesion it you get hyperphagia

Question 5

1. the anterior hypothalamus is in charge of…

2. it is under what type of innervation?

Answer 5

1. cooling 2. Parasympathetic

Question 6

1. The posterior hypothalamus is in charge of…

2. it is under what type of innervation?

Answer 6

1. heating

2. sympathetic

Question 7

the suprachiasmatic nucleus of the hypothalamus is in charge of…

Answer 7

circadian rhythms… SLEEP!!! (to be “charismatic” you need sleep)

Question 8

the posterior pituitary is also called what?

Answer 8

the neurohypophesis

Question 9

the posterior pituitary receives what hypothalamic projections/peptides for storage?

Answer 9

1. from the supraoptic nuclei (ADH)

2. from the paraventricular nuclei (oxytocin)

Question 10

the anterior pituitary is also called…

Answer 10

the adenohypophesis

Question 11

The 7 function of the hypothalamus

Answer 11

TAN HATS

1. Thirst/H20 reg.
2. Adenohypophesis control (ant pit)
3. Neurohypophesis releases hormones produced in the hypothalamus (oxytocin and ADH)
4. Hunger
5. Autonomic regulation
6. Temperature regulation
7. Sexual urges

Question 12

2 input regions to the hypothalamus?

Answer 12

1. OVLT (senses change in osmolarity —> ADH)

2. area postrema (responds to emetics)

Question 13

What is the input into the VPL of the thalamus?

Answer 13

spinothalamic and dorsal columns/medial lemniscus

Question 14

what information comes into the VPL of the thalamus?

Answer 14

pain, temp, pressure, touch, vibration and proprioception

Question 15

the information from the VPL of the thalamus is headed where?

Answer 15

primary sematosensory cortex (pain, temp, pressure, touch, vibration and proprioception)

Question 16

the VPM of the thalamus gets inputs from which tracts?

Answer 16

trigeminal and gustatory pathway

Question 17

what infortmation is carried to the VPM of the thalamus?

Answer 17

face sensation (trigeminal) and taste (facial nerve, IV and X) (“vpM = Makeup goes to the face”)

Question 18

Information that goes into the thalamic VPM is headed where?

Answer 18

primary somatosensory cortex (face sensation (trigeminal) and taste (facial nerve, IV and X))

Question 19

What input goes to the LGN of the thalamus?

Answer 19

CNII (vpLateral = light)

Question 20

What information is carried into the LGN of the thalamus?

Answer 20

vision (CNII) (vpLateral = light)

Question 21

what is the destination of the info that comes into the thalamus via the LGN?

Answer 21

the calcarine sulcus (CN II)

Question 22

what is the input into the VL thalamus?

Answer 22

the basal ganglia

Question 23

what information is carried into the VL thalamus?

Answer 23

motor

Question 24

where is the information coming out of the VL thalamus headed?

Answer 24

motor cortex

Question 25

What information is carried to the MGN of the thalamus?

Answer 25

hearing (Mgn = music!)

Question 26

what input goes into the MGN of the thalamus?

Answer 26

superior olive and inferior colliculus of tectum (midbrain with hearing info)

Question 27

what is the destination of the information coming from the MGN?

Answer 27

auditory cortex of the temporal lobe (Mgn = Music (hearing!))

Question 28

5 structures of the limbic system?

Answer 28

1. hippocampus
2. fornix
3. mammalary bodies
4. amygdala
5. cingulate gyrus

Question 29

5 F’s of the limbic sys

Answer 29

1. Feeding
2. Fleeing
3. Fighting
4. Feeling
5. Sex