Chapter 48 Nursing Assessment: Endocrine System VOCAB Flashcards Preview

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Flashcards in Chapter 48 Nursing Assessment: Endocrine System VOCAB Deck (17):
1

Aldosterone

potent mineralocorticoid that maintains extracellular fluid volume

2

Antidiuretic hormone (ADH)

hormone secreted by the posterior pituitary, produced in the hypothalamus, regulates fluid volume by stimulating reabsorption of water in the renal tubules

3

Catecholamines

epinephrine (adrenaline), norepinephrine (noradrenaline), and dopamine. usually considered neurotransmitters, are hormones when secreted by the adrenal medulla because they are released into the circulation.

4

Circadian rhythm

an endogenous 24-hour rhythm that can be driven and altered by sleep-wake or dark-light 24-hour (diurnal) cycles

5

Corticosteroid

hormones synthesized by the adrenal cortex excluding androgens.

6

Cortisol

most abundant and potent glucocorticoid, is necessary to maintain life and protect the body from stress

7

Glucagon

synthesized and released from pancreatic α cells and the gut in response to low levels of blood glucose, protein ingestion, and exercise

8

Growth hormone (GH)

affects the growth and development of all body tissues. It also has numerous biologic actions, including a role in protein, fat, and carbohydrate metabolism.

9

Hormones

chemical substances produced in the body that control and regulate the activity of certain target cells or organs

10

Insulin

the principal regulator of metabolism and storage of ingested carbohydrates, fats, and proteins

11

Islets of Langerhans

The hormone-secreting portion of the pancreas

12

Melatonin

secretion of this hormone by the pineal gland is increased in response to exposure to the dark and decreased in response to light.

13

Negative feedback

the most common type of endocrine feedback system and results in the gland increasing or decreasing the release of a hormone

14

Positive feedback

used to regulate hormone synthesis and release

15

Thyroxine (T4)

90% of thyroid hormone produced by the thyroid gland

16

Triiodothyronine (T3)

much more potent thyroid hormone and has greater metabolic effects

17

Tropic hormones

hormones that control the secretion of hormones by other glands