Chapter 18: Endocrine Flashcards

1
Q

Endocrine Gland Product

A

Hormone (messenger molecule) (enter via blood stream)

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2
Q

Hormone Secretion occurs in

A

Bursts (regulated by negative feedback)

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3
Q

Water soluble hormones circulate…

A

Freely

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4
Q

Lipid soluble hormones circulate…

A

Transport proteins

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5
Q

Hypothalamus governs…

A

Pituitary

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6
Q

Pituitary gland (hypophysis):

A

Anterior lobe: produces several hormones
Posterior lobe: stores and releases hormones produced by the hypothalamus

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7
Q

Human Growth Hormone (hGH) responsibilities

A

Stimulates body growth, maintains muscle mass

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8
Q

The release of Human Growth Hormone (hGH)

A

Stimulated by growth hormone releasing hormone (GHRH) (from hypothalamus)

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9
Q

Thyroid Stimulating Hormone (TSH) responsibility

A

Causes thyroid to release thyroid hormone)

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10
Q

Anterior Lobe of Pituitary (FSH)

A

Follicle Stimulating Hormone (stimulates follicle and sperm)

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11
Q

Follicle Stimulating Hormone released by…

A

Stimulated by gonadotropin releasing hormone (GnRH) from hypothalamus. Suppressed by estrogen and test

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12
Q

Anterior Lobe of Pituitary (LH)

A

Luteinizing Hormone stimulates estrogen, progesterone, ovulation, formation of corpus luteum and test

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13
Q

Luteinizing hormone released by…

A

gonadotropin releasing hormone from hypothalamus

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14
Q

Posterior Lobe of Pituitary (ADH)

A

Antidiuretic hormone (conserves body water)

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15
Q

Thyroid Gland: Follicular Cells

A

(T4) and (T3) are produced by follicular cells of thyroid gland.
Secretion of T3 and T4 is stimulated by TSH (thyroid stimulating hormone)

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16
Q

Parathyroid Gland

A

Parathyroid hormone (PTH) increases blood calcium levels

17
Q

Adrenal Cortex: Aldosterone

A

Cause kidneys to conserve water and sodium

18
Q

Adrenal Cortex: Cortisol

A

Glucocorticoids (stress hormone) (e.g. cortisol):
Secretion stimulated by ACTH (adrenocorticotropic hormone)

19
Q

Adrenal Medulla

A

Secretes epinephrine and norepinephrine (fight or flight)

20
Q

Pancreas creates (alpha/beta)

A

Alpha cells secrete glucagon – increases blood glucose level
Beta cells secrete insulin – decreases blood glucose
Diabetes mellitus: the most common endocrine disorder

21
Q

Pineal Gland secretes

A

Melatonin