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HPA Flashcards

(13 cards)

1
Q

HPA

A

Hypothalamic pituitary adrenal axis

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2
Q

CRH

A

corticotrophic-releasing hormone
goes into the pituitary gland to release ACTH

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3
Q

Hypothalamus

A

acts as a sensor and mediator between other glands

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4
Q

Trophic hormones

A

Hormones that releases other hormones

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5
Q

Pituitary gland

A

Secretes hormones made by the hypothalamus and is more of an extension of neuron tissues

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6
Q

Anterior pituitary gland

A

The true endocrine gland as it releases its own hormones but still regulated by hypothalamic hormones

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7
Q

Posterior pituitary

A

Acts more of like an extension of the hypothalamus. Stores and releases hormones and also contains axons that originates from hypothalamic neurons

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8
Q

The effect of cortisol

A

Provides body with glucogenesis as a response to stress
Inhibits ACTH secretion as a feed back
Decreases anabolic pathway and increases catabolic pathway

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9
Q

Adrenal gland parts

A

Adrenal cortex and medulla

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10
Q

Adrenal cortex zones

A

Zona glomerulosa
Zona fasciculata
Zona reticularis

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11
Q

Adrenal medulla

A

Secretes catecholamines (amine hormones) like adrenaline, noradrenaline and dopamine

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12
Q

Hypercortisolism

A

Excess of cortisol
Cushing’s syndrome
Results in tumors in the adrenal gland or pituitary

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13
Q

Hypercortisolism

A

Significant lack of cortisol
Addison’s disease

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