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DPT 540 - HYPOTHALAMUS EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
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DPT 540 - HYPOTHALAMUS EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE What is the overall job of the hypothalamus? Act as the main interface between the nervous system and the endocrine system - regulate parasympathetic, sympathetic, and endocrine system Clinical sign...

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  • November 16, 2024
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  • 2024/2025
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DPT 540 - HYPOTHALAMUS EXAM QUESTIONS AND ANSWERS

WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE

What is the overall job of the hypothalamus?

Act as the main interface between the nervous system and the endocrine system

- regulate parasympathetic, sympathetic, and endocrine system

Clinical signs of hypothalamic pathology

Alterations in endocrine and autonomic function

- changes in metabolism, body growth, weight, temperature, appetites, sexual behavior,

developmental milestones, sleep cycles, and behavior

What are the 4 functions of the hypothalamus?

Homeostasis (hunger, thirst, sexual desire, sleep-wake cycles, etc.), endocrine control

(via pituitary), autonomic control, and limbic mechanisms

Body functions controlled by the hypothalamus

- body temperature and the febrile response

- food, salt, and water intake

- sexual cycles, sexual orientation, and onset of sexual milestones

- circadian rhythms

- body weight

- stress response

How does the hypothalamus maintain homeostasis?

Sampling blood and CSF for temperature, osmolality, hormone levels, etc.

What is the anterior limit of the hypothalamus?

, Lamina terminalis

What is the posterior limit of the hypothalamus?

Line running from the end of the mammillary bodies to the posterior commissure

Nuclei located in preoptic area of hypothalamus

Medial preoptic nucleus

Nuclei located in anterior (supraoptic) region of hypothalamus

Paraventricular nucleus, anterior nucleus, suprachiasmatic nucleus, supraoptic nucleus

Nuclei located in middle (tuberal) region of hypothalamus

Dorsomedial nucleus, ventromedial nucleus, arcuate nucleus

Nuclei located in posterior (mammillary) region of hypothalamus

Mammillary body, dorsomedial nucleus

Paraventricular nucleus

Located adjacent to 3rd ventricle, directly interfacing with endocrine and autonomic

systems

Supraoptic nucleus

Located laterally, just above the optic tract. Important for release of vasopressin (anti-

diuretic)

Suprachiasmatic nucleus

Located on midline, above optic chiasm. Responsible for generating circadian rhythms

Arcuate nucleus

Located on either side of 3rd ventricle, involved in appetite and consumption

What are the 4 major bundles of white matter associated with hypothalamus?

Fornix, mammillothalamic tract, mammillotegmental tract, medial forebrain bundle

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