Endocrine system Flashcards

(59 cards)

1
Q

What is hypophisis

A

Pirtuary gland

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2
Q

What is the purpose of the endocrine system

A

slow communication system

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3
Q

What are the types of hormone release

A

Acute (short term), chronic (long term) and episodic (menstruation)

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4
Q

Where is the hypothalamus

A

anterior and inferior o the thalamus

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5
Q

What way does the pituary gland communicate from and to

A

communicates to two glands (anterior and posterior pirtuary glands)

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6
Q

what are the science names of the pirtuary glands

A

anteriohypohisis and neurohypophisis

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7
Q

What is the fat part of the pirtuary gland

A

anterior

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8
Q

What is the communication betwenn the hypothalamus and pirtuary gland

A

hypothalamic-hypophyseal portal system

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9
Q

What are the anterior pirtuary gland hormones

A

growth hormones, thyroid stimulating hormone, adrenocorticotropic hormone, melanocyte stimulating hormone

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10
Q

what are the lutenizing hormone

A

reproductive hormone

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11
Q

What is prolactin

A

lactation hormones

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12
Q

What are the hormones for back pirtuary

A

anti diuretic hormone, increased water reabsorbtion, and oxytosin

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13
Q

what is the pineal gland

A

Synthesises melatonin and serotonin, sleep cycle

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14
Q

What happens with the pineal gland in your 30’s

A

it calcifies

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15
Q

What are the regions of the thyroid

A

left and right lobe and isthmus

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16
Q

What do the thyroid follicles look like

A

follicular cell ring and colloid filled

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17
Q

What are the follicular cell rings shaped

A

simple cuboidal

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18
Q

what does the thyroid regulate

A

metabolism

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19
Q

What stimulates the release of t3 and t4

A

iodine

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20
Q

What is calcitonin

A

regulates calcium

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21
Q

What does calcitonin do when released

A

Stops calsium

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22
Q

What is the parathyroid hormone and the parathyroid glands

A

parathyroid glands are near the thyroid and produce parathyroid hormones which increases calcium

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23
Q

What is the adrenal gland

A

It is above the kidney and produces hormone

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24
Q

What is the cortex in the adrenal gland

A

salt sugar and sex

25
What is the medulla produce
stress hormones
26
What s the endocrine function of the pancrease
produce insulin glucagon and somatostatin
27
What i produced in the balls (testes)
stimulate testosterone and spermatogenesis
28
what are ovaries for
stimulated by follicle stimulating hormone which produces oestrogen an progesterone
29
What is the compromise made by cell specialisation
Them not being able to survive as one cell
30
what is homeostatis
communication between specialised cells and they all work together. These hence maintain a static condition in the body
31
what are the homeostatic control systems
cardiovascular, circultory, respiratory, reproductive, gastrointestinal, urinary, endocrine and neurophysiological
32
What is the buffer that can allow humans to survive varying temps
the extracellular matrix
33
What allows the temp to keep the same
we have measures to keep it the same
34
what is bernard famous for
homeostasis
35
what is the normal values of human ecf
40 PO2, PCO2 40 Na+ 142, K+, CA2+ 1., Cl- 108, Glucose 85, temp 37, PH 7.4
36
What has a real tight range
PH, temperature
37
What is outside the normal rangers
hypo for below, hyper for aboce
38
What is a control system
a stimulus which effect a receptor which affects an afferent pathway, which affect the integrating center, then affects the efferent pathway, which tells the effector to generate a response
39
What detect temp
hypothalamus
40
What is negative feedback
when we want to stop the stimulus
41
what is positive feedback
non homeostatic stuff include blood clotting action portentials and childbirth
42
What is required for something negative feedback loop to happen
error signal
43
what is a feedforward loop
where you predict something FOF response
44
What is a parametric feed forward
example would be opwning up a door, from something learned
45
what is a predictive homeostasis
fight or flight
46
what happens with exercise
your carbon dioxide goes down because exercise produces co2
47
What do we need to know for homeostatic control
what vatiable needs to be constant, what are the receptors that detects changes in the variable, where is the afferent info anf what are the effectors
48
what are the main communication systems
nervous and endocrine
49
what is common with both nervous and endocrine systems
long distance
50
what is the difference between nervous and endocrine system
ns is fast, es is slow, adaptation is quick for ns and slow for es. the ns is very specific whereas the es is wide
51
What functions as both neurotransmitter and hormones
most neurotransmitters
52
what is the difference between neurotransmiter and hormones
neurotransmitter = nervous, hormones = endocrine
53
What is thermo regulation
through shivering when cold and sweating when hot, it is operated by the hypothalamus.
54
what is how temperature works
low body temp -> thermoreceptors -> sensory neurons -> brain -> motor neurons -> blood vessels -> increase temp
55
What causes blood glucose levels to increase
glucagon
56
What is the stimulus cycle for blood glucose
elevated blood glucose -> beta cells in pancreas -> pancreas secretes inculin ->transport in blood -> liver opens up glucose channels -> decrease glucose
57
What is the baroreceptor reflec
to increase blood pressure
58
what is he positive feedback loop of childbirth
child puts pressure in the cervix which secretes oxytosin which increases the contraction of the uterus which increases pressure
59
what is the voltage gated channels action porential
positive feedback loop