Endocrine Flashcards

1
Q

What gland is located just superior to the kidneys?

A

Adrenal

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2
Q

secretes hormones that are transported to target cells by blood

A

endocrine system

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3
Q

causes changes in metabolic activities

A

endocrine system

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4
Q

effects are prolonged

A

endocrine system

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5
Q

Most hormones of the endocrine system are regulated by

A

negative feedback mechanism

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6
Q

Name the gland that is located at the base of the throat, just inferior to the laryngeal prominence (Adam’s apple).

A

thyroid

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7
Q

This hormone is responsible for “fight-or-flight” response

A

epinephrine and norepinephrine

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8
Q

The endocrine gland responsible for the body’s circadian rhythm

A

pineal gland

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9
Q

An autoimmune disease in which thyroid hormone secretion can be decreased; metabolic rate is decreased, weight gain is possible

A

Hashimoto thyroiditis

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10
Q

It is due to a lack of ADH from the posterior pituitary and results in excessive urination

A

Diabetes insipidus

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11
Q

It causes blood PTH levels increase above normal and elevated blood calcium levels

A

primary hyperthyroidism

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12
Q

It inhibits the secretion of insulin and glucagon and inhibits gastric tract activity.

A

somatostatin

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13
Q

It is characterized by developmental delay, short stature, and abnormally formed skeletal structures

A

cretinism

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14
Q

It causes an increased metabolic rate, extreme nervousness, and chronic fatigue.

A

cretinism

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15
Q

Glands of ADH

A

Pituitary gland posterior

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16
Q

Glands of ACTH

A

Pituitary gland anterior

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17
Q

Glands of Calcitonin

A

Thyroid gland

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18
Q

Glands of Cortisol

A

Adrenal Cortex

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19
Q

Glands of Epinephrine

A

Adrenal Medulla

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20
Q

Glands of growth hormone

A

pituitary gland anterior

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21
Q

Glands of insulin

A

pancreas

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22
Q

Glands of Mineralocorticoids

A

Adrenal cortex

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23
Q

Glands of Melatonin

A

Pineal gland

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24
Q

Glands of oxytocin

A

pituitary gland posterior

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25
Glands of Prostaglandin
ovaries
26
functions of endocrine system
1. controls homeostasis 2. control of food intake and digestion 3. regulation of metabolism 4. modulation of tissue development 5. regulation of ion levels 6. control of water balance 7. changes in heart rate and blood pressure 8. control of blood glucose and other nutrients 9. stimulation of uterine contractions and milk release 10. control of reproductive function 11. modulation of immunse system function
27
components of endocrine system
endocrine glands and chemical signal
28
types of chemical signal
intracellular and intercellular
29
classes of chemical messenger
1. autocrine 2. paracrine 3. neurotransmitter 4. endocrine
30
secrete their product directly into the blood stream
endocrine glands
31
molecules that are released from one location , move to another location, and produce a response
chemical signal
32
produce in one part of a cell and move to another part of same cell
intracellular
33
released from one cell and bind to receptors on another cell
intercellular
34
stimulates the cell that originally secreted it
autocrine
35
ex. eicosanoids (released in redponse to inflammation)
autocrine
36
released by cells that affect other cell types in close proximity
paracrine
37
ex. somatostatin (inhibits insulin secretion) histamine (during allergic reactions)
paracrine
38
secreted by nerve cells to active another neuron, muscle cells, or glandular cell
neurotransmitter
39
ex. acetylcholine and epinephrine
neurotransmitter
40
secreted into the bloodstream by certain glands and cells
endocrine
41
travel through the general circulation to their target cells
endocrine
42
ex. thyroid hormones
endocrine
43
components of hormones
receptor site target tissues specificity
44
location on a cell where hormone binds
receptor site
45
group of cells that respond to specific hormones
target tissues
46
specific hormones bind to specific receptor sites
specificity
47
how do hormones work
1. hormones are secreted by endocrine glands directly into the bloodstream 2. hormones travel to all parts of the body 3. hormones bind to receptor sites on target tissue 4. response occurs
48
how do hormones cause change
1. increasing or decreasing cell's normal processes 2. change permeability of cell membrane by opening or closing ion channels 3. synthesis of proteins
49
target tissue of glucagon
liver
50
functions of glucagon
1. regulation of blood glucose level 2. between meal, glucose level drops, and glucagon is secreted 3. glucagon allows glycogen to be broken down into glucose
51
glands of thymosin
thymus glands
52
glands of estrogen
ovaries
53
glands of progesterone
ovaries
54
functions of estrogen/ progesterone
involved in uterine and mammary gland development and menstrual cycle
55
target tissues of thymosin
immune system tissues
56
functions of thymosin
promotes immune system development and function
57
target tissues of melatonin
hypothalamus
58
functions of melatonin
onset of puberty and controls circadian rhythms light affects its function
59
2 regions of adrenal glands
medulla and cortex
60
target tissues of epinephrine/norepinephrine
heart, blood vessel, liver, fat cell
61
epinephrine/norepinephrine is found in
adrenal medulla
62
functions of epinephrine/norepinephrine
released as part of fight or flight response
63
aldosterone is found in
adrenal cortex
64
type of mineralocorticoids
aldosterone
65
target tissues of aldosterone
kidneys
66
functions of aldosterone
causes Na+ and H2O to be retained and K+ to be secreted, indirectly involved with blood pressure and blood volume
67
type of glucocorticoids
cortisol
68
functions of cortisol
increases breakdown of fat and protein for energy uses reduces inflammatory and immune responses
69
functions of androgens
male: secondary sexual characteristics female: sex drive
70
organ in abdomen
pancreas
71
insulin is found in
pancreas
72
insulin is found in
pancreas
73
target tissues of insulin
liver, skeletal muscle, adipose tissue
74
functions of insulin
regulares blood glucose level extra glucose is stored in the form of glycogen
75
causes of diabetes mellitus
too little insulin or faulty insulin receptors
76
symptoms of diabetes mellitus
exaggerated appetite, excess urine, dehydration, thirst, and fatigue
77
insulin dependent (daily injections required)
type 1
78
insulin independent, often found in obese people, can be treated with diet but can turn into type 1
type II