Hypothalamus

Question 1

The ______ area of the hypothalamus is continuous with the periaqueductal gray.

Answer 1

median hypothalamic

Question 2

What hypothalamic nuclei secrete vasopressin and oxytocin?

Answer 2

paraventricular and supraoptic nuclei respectively

Question 3

Which hypothalamic nuclei serve as the biologic clock?

Answer 3

suprachiasmatic nucleus

Question 4

What is the median forebrain bundle?

Answer 4

From basal olfactory areas, septal nuclei, periamygdala, and subiculum → lateral preoptic and lateral hypothalamic areas

Information related to basic emotional drives and smell

Question 5

The fornix connects the ____ to the _____.

Answer 5

hippocampus to the mammillary bodies

Question 6

What is the strai terminalis?

Answer 6

Travels within the terminal sulcus (between the thalamus and caudate).

Amygdala → hypothalamus (anterior and preoptic nuclei)

Information related to emotional drives and smell

Question 7

The dorsal longitudinal fasciculus connects the ____ to the ______.

Answer 7

midbrain’s central gray

periventricular hypothalamus

Question 8

What’s another name for the mammillothalamic tract?

Answer 8

“Hypothalamic–thalamic tract of Vicq d’Azyr”

Question 9

What general region of the hypothalamus controls each of the following:

Parasympathetic:
Sympathetic:
Decreases body temperature: 
Increases body temperature: 
Satiety center: 
Feeding center:
Arousal center:

Answer 9

Parasympathetic: anterior and medial (ventromedial) hypothalamic nuclei.

Sympathetic: posterior and lateral hypothalamic nuclei.

Decreases body temperature: anterior hypothalamic nucleus.

Increases body temperature: posterior hypothalamic nucleus.

Satiety center: medial hypothalamic nucleus.

Feeding center: lateral hypothalamic nucleus.

Arousal center: posterior hypothalamic nucleus

Question 10

What is the origin of the adenohypophysis?

Answer 10

Ectodermal origin from roof of the stomodeum

Question 11

What are the components of the adenohypophysis?

Answer 11

1. Pars tuberalis includes Portion of the infundibular stalk Median eminence of hypothalamus
2. Pars intermedia
3. Pars distalis: majority of the gland, has no direct
   arterial supply

Question 12

What is the origin of the neurohypophysis?

Answer 12

diencephalic

Question 13

What are the components of the neurohypophysis?

Answer 13

1. Pars nervosa (posterior lobe)
2. Infundibulum
3. Nuclei (supraoptic and paraventricular)