Endocrine Flashcards

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1
Q

The Endocrine System consists of ___ and ____ that ____ _____

A

glands and tissues, secrete hormones

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2
Q

Secrete hormones directly into the _____ for distribution
throughout the body

A

blood

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3
Q

Endocrine and nervous systems are intimately involved in _______

A

homeostasis

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4
Q

Hormones can be

A

lipid steroids or a mixture of
protein/sugar/amino acid complexes

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5
Q

Hypothalamus is a part of the ____

A

brain

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6
Q

Hypothalamus help to regulate the ____ _____

A

the internal environment
* For example, it receives
information about the
heartbeat and body
temperature

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7
Q

In order for the Hypothalamus to maintain internal homeostasis, it controls the ____ of ___ ____

A

To do this, it controls the
secretions of Pituitary gland

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8
Q

Pituitary gland—is connected to the brain by the stalk and has two parts:

A

Anterior pituitary, . Posterior pituitary

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9
Q

The anterior pituitary controls the secretions of the following endocrine glands:

A
  1. Thyroid gland
  2. Adrenal cortex
  3. Gonads
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10
Q

Anterior pituitary

A

secretes hormones to regulate other glands

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11
Q

Posterior pituitary

A

stores other hormones and secrets them when needed

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12
Q

Thyroid gland: Produces ___ ___ dependent hormones and ___ hormone
involved in calcium homeostasis.

A

2 iodine, 1

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13
Q

Two iodine
dependent hormones:

A

Triiodothyronine (T3) hormone and Thyroxine (T4) hormones

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14
Q

one hormone
involved in calcium homeostasis:

A

Calcitonin hormone

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15
Q

thyroid hormones can ____ metabolic rate

A

increase

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16
Q

Thyroid hormones ____ have a single specific target. (do or do not)

A

DO NOT

17
Q

Parathyroid glands produce
____

A

parathyroid hormone (PTH)

18
Q

PTH _____ blood calcium levels

A

increases

19
Q

PTH promotes _____ of calcium from kidneys

A

reabsorption

20
Q

PTH activates vitamin ___ to stimulate _____ of _____ from intestine

A

D, absorption, calcium

21
Q

Adrenal glands are located at:

A

Sit atop the kidneys

22
Q

Adrenal glands each have an

A

adrenal medulla and
adrenal cortex.

23
Q

______ exerts control over
adrenal medulla and adrenal cortex.

A

Hypothalamus

24
Q

Adrenal medulla

A

controlled by nerve impulses from the brain to control fight
or flight hormones

25
Q

Adrenal cortex

A

controlled by
hormones from the hypothalamus to
control salt/water balance, metabolism
of macromolecules, and a little bit of sex
hormone

26
Q

Pancreas is composed of 2 types of tissues:

A

Exocrine tissue produces digestive juices that pass through ducts to the small intestine.

Endocrine tissue (pancreatic islets) produces and
secretes insulin and glucagon directly into the blood.

27
Q

Exocrine tissue produces

A

digestive juices that pass through ducts to the small intestine.

28
Q

Endocrine tissue (pancreatic islets) produces and
secretes

A

insulin and glucagon directly into the blood.

29
Q

Insulin ___ blood glucose

A

lowers

30
Q

Insulin stimulates ____ of glucose by cells—especially liver (turns glucose to glycogen remember!), muscle, and adipose tissue cells

A

uptake

31
Q

Glucagon ___ blood glucose

A

Raises

32
Q

Glucagon stimulates liver to ____ glycogen to glucose and
to use __ and ____ instead of glucose as an energy source

A

break down, fat and protein

33
Q

Pancreatic islet (groups of cells in your pancreas) consists of:

A

Alpha cells
Beta cells
pancreatic acinar cells

34
Q

Alpha cells

A

Glucagon producing

35
Q

Beta cells

A

Insulin producing

36
Q

pancreatic acinar cells

A

exocrine