endocrine system Flashcards

1
Q

releases hormones to the blood and transported throughout the body

A

endocrine system

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2
Q

study of hormones and endocrine organs

A

endocrinology

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3
Q

these hormones are made from cholesterol, such as sex hormones made by gonads

A

steroid hormones

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4
Q

what type of hormones are all hormones except for sex hormones

A

amino acid-based hormones

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5
Q

Hormone mechanism directly passes the plasma membrane.

A

direct gene activation

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6
Q

for protein and peptide, it passes through a protein receptor and creates a second messenger

A

second messenger system

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7
Q

stimulate other endocrine glands to release their hormones

A

tropic hormones

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8
Q

most common stimuli, refers to the release of a hormone in response to another hormone

A

hormonal stimuli

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9
Q

Changing/imbalance of blood vessels of certain ions and nutrients stimulates hormone release

A

humoral stimuli

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10
Q

stimuli from the nerve fibers that stimulate hormone release
- Fight and flight response

A

neural stimuli

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11
Q

produces releasing and inhibiting hormones

A

hypothalamus

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12
Q

the hypothalamus makes 2 hormones

A

oxytocin and antidiuretic hormone

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13
Q

hormone for milk ejection, for the contraction of uterus during childbirth

A

oxytocin

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14
Q

Carried to posterior pituitary via neurosecretory cells for storage. Prevent dehydration.

A

Antidiuretic hormone

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15
Q
  • Does not make the hormones it releases
    Stores hormones made by the thalamus
A

posterior pituitary

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16
Q
  • general metabolic hormone
  • Major effects direct skeletal muscle and long bone growth
  • determines final body size
  • causes amino acids to be built into proteins
  • causes fats to be broken down for a source of energy
A

growth hormone (GH) / somatotropin

17
Q

stimulates and maintain milk production following childbirth

A

prolactin

18
Q

regulate hormonal activity of the gonads

A

gonadotrophic hormones

19
Q

influences growth and activity of thyroid gland

A

thyrotropic hormone

20
Q

regulates endocrine activity of the adrenal cortex

A

Adrenocorticotropic hormone

21
Q
  • hangs from the roof of the 3rd ventricle of the brain
  • secretes melatonin
  • triggers sleep/wake cycle and coordinates the hormones of fertility in humans to inhibit the reproductive system until maturity occurs
A

pineal gland

22
Q

consists of 2 lobes and a connecting isthmus
- follicles are hollow structures that store colloidal material
- known as adams apple

A

thyroid gland

23
Q

Decreases the blood calcium ion level by causing calcium to be deposited in the bones.

A

calcitonin

24
Q

the parathyroud secretes the most important regulator of calcium ion (Ca2+) homeostasis of the blood.

A

parathyroid hormone

25
Q

decreases in size throughout adulthood
- produces thymosin hormones, which are important for the development of white blood cells

A

thymus

26
Q

curve over the top of the kidneys like triangular hats. Although it looks like a single organ, it is structurally and functionally two endocrine organs in one

A

adrenal glands

27
Q

steroid hormones created by the adrenal cortex

A

corticosteroids

28
Q

produced by the outermost adrenal cortex cell layer.
- are important in regulating the mineral (or salt) content of the blood, particularly the concentrations of sodium and potassium ions

A

mineralocorticoids

29
Q

an enzyme produced by the kidneys when blood pressure drops, also causes the release of aldosterone by triggering a series of reactions

A

renin

30
Q

promote normal cell metabolism and help the body to resist long-term stressors, primarily by increasing the blood glucose level

A

glucocorticoids

31
Q

little masses of endocrine (hormone-producing) tissue scattered among the exocrine (enzyme-producing) tissue of the pancreas

A

islets of Langerhans (pancreatic islets)

32
Q

produce sex cells (an exocrine function). They also produce sex hormones that are identical to those produced by adrenal cortex cells

A

gonads

33
Q

The female gonads that are paired, slightly larger than almond-sized organs located in the pelvic cavity.

A

ovaries