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DIT Neuro > Neu 2 - Hypothalamus > Flashcards

Neu 2 - Hypothalamus Flashcards

1
Q

which are the layers of the cerebrum?

A

Neocortex, Limbic system and Prefrontal cortex.

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2
Q

What function develops the limbic system?

A

Emotional Behavior, Motivational Drives, and the 5 F’s Feeding, Fleeing, Fighting, Feeling and Sex.

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3
Q

What function develops the prefrontal cortex?

A

This area is involved in organizing and planning the intellectual and emotional aspects of behavior and inhibit the limbic system.

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4
Q

What is the most important link between Nervous System and Endocrine System?

A

Hypothalamus

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5
Q

Where are the inputs on the hypothalamus?

A

In the areas not protected by Blood-Brain Barrier, OVLT (Organum vasculosum of the lamina terminalis; senses change in osmolarity), Area postrema (Responds to emetics).

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6
Q

What does the Hypothalamus do?

A

[TAN HATS] Thirst and water balance, Adenohypophysis control, Neurohypophysis release hormones produced in the hypothalamus, Hunger, Autonomic regulation, Temperature regulation, Sexual urges.

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7
Q

which nucleus produces ADH?

A

Supraoptic nucleus primarily makes ADH.

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8
Q

Which nucleus makes Oxytocin?

A

Paraventricular nucleus primarily makes oxytocin.

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9
Q

which area involves hunger and its destruction develops anorexia?

A

Lateral area and also is inhibited by leptin.

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10
Q

what function develops ventromedial area?

A

Satiety. Destruction produces hyperphagia, and also it stimulated by leptin

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11
Q

Where is thermal regulation control?

A

Anterior hypothalamus, A/C= Anterior.

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12
Q

what function develops posterior hypothalamus?

A

Heating, sympathetic.

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13
Q

which nucleus control the circadian rhythm?

A

Suprachiasmatic nucleus and aslo receives input form retina to determine day or night. “You need sleep to be charismatic (Chiasmatic)”.

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14
Q

what disease is characterized by hemorrhagic lesion in the mammillary body?

A

Wernickes’s encephalopathy.

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15
Q

what is the embryologic origin of the posterior pituitary (Neurohypophysis)?

A

Neuroectoderm, also receive input from supraoptic (ADH) and Paraventricular (oxytocin).

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16
Q

which hormone is secreted on the orgasm, dilation of the cervix in labor and breastfeeding?

A

Oxytocin.

17
Q

Secreted by pineal gland when prolonged periods of darkness.

A

Melatonin.

18
Q

Inhibits the anterior pituitary’s production of LH and FSH then suppresses libido in winter

A

Melatonin.

19
Q

which nucleus of the hypothalamus is considered the “Master clock” for most our circadian rhythms?

A

Suprachiasmatic nucleus.

20
Q

which nucleus of the hypothalamus regulates the parasympathetic nervous system?

A

Anterior hypothalamus and Preoptic nucleus.

21
Q

which nucleus of the hypothalamus its destruction results in hyperthermia?

A

Anterior nucleus.

22
Q

which nucleus of the hypothalamus regulates the sympathetic nervous system?

A

Posterior and Lateral Nucleus.

23
Q

which nucleus of the hypothalamus produces antidiuretic hormone (ADH) to regulate water balance?

A

Supraoptic nucleus.

24
Q

which nucleus of the hypothalamus receives input from the retina?

A

Suprachiasmatic nucleus.

25
Q

which nucleus of the hypothalamus results in savage behavior and obesity when it is stimulated?

A

Dorsalmedial nucleus.

26
Q

which nucleus of the hypothalamus results in savage behavior and obesity when its destruction?

A

Ventromedial nucleus.

27
Q

which nucleus of the hypothalamus stimulation leads to eating and destruction leads to starvation?

A

Lateral nucleus.

28
Q

which nucleus of the hypothalamus regulates the release of gonadotropic hormones(i.e., LH and FSH)?

A

Preoptic nucleus.

29
Q

which nucleus of the hypothalamus is responsible for sweating and cutaneous vasodilation in hot temperature?

A

Anterior nucleus.

30
Q

which nucleus of the hypothalamus is responsible for shivering and decreased cutaneous blood flow in the cold?

A

Posterior nuclei.

31
Q

which nucleus of the hypothalamus destruction results in neurogenic diabetes insipidus?

A

Supraoptic nuclei.

32
Q

which nucleus of the hypothalamus destruction results in inability to stay warm?

A

Posterior nuclei.

33
Q

which nucleus of the hypothalamus releases hormones affecting in the anterior pituitary?

A

Arcuate nucleus.

34
Q

Which hypothalamus nuclei are involved with controlling the appetite?

A

Lateral and Ventromedial nucleus.

DIT Neuro (15 decks)

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