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Biology 104 ( Reproductive physiology) > Lecture 2 > Flashcards

Lecture 2 Flashcards

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1
Q

what is the role of the pituitary gland?

A
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2
Q

What is the relationship between the hypothalamus and the pituitary gland?

A
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3
Q

What are the two major subdivisions of the human hypophysis?

A

Anterior( adeno) and the posterior ( neuro)

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4
Q

What is a neurosecretory nerve cell?

A
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5
Q

What are neurohormones?

A
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6
Q

What is the significance of the supraoptic and periventricular nuclei of the neurohypophysis ?

A

cell bodies of the neurosecretory cells are located here.

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7
Q

What 2 neurohormones are released from these hormones?

A

Oxytocin and Vasopressin (ADH)

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8
Q

list several functions of oxytocin

A

contraction of mamary glands? Ejection of milk and uterine contractions

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9
Q

list several functions of ADH

A

Water retention by the kidneys and blood vessel constriction

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10
Q

Name the various hormones that are released from the endocrine cells of the anterior pituitary gland

A

GH
PRL
TSH
AcTH
LH/FSH

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11
Q
  1. why is the connection between the hypothalamus and the anterior pituitary gland considered to be vascular?
A

Hypophyseal portal system.

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12
Q

what is the significance of the hypophysiotropic area (HTA)

A
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13
Q

What is the importance of the hypothalamo-hypophysial portal system ?

A
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14
Q

What are relasing and release inhibiting hormones? where are they from and what are their target cells?

A
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15
Q

what is the mechanism of Gnrh synthesis

A
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16
Q

where are the cell bodies of the GnRH secreting cells located

A

the Arcuate nucleus of the HTA

17
Q

why can GnRH be considered a neurohormone?

A

it is released from neurosecretory cells in the hypothalumus

18
Q

what is the importance of the pulsatile pattern of GnRH release?

A

LH and FSH and GnrH releasing neurons located in the Arcuate nucleus.

Biology 104 ( Reproductive physiology) (2 decks)

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