Mechanisms Of homestatis Flashcards

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1
Q

Define homestatis.

A

A self-regulation works on processing the adjustment of the environment conditions.

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2
Q

What organ controls the temperature?

A

The skin.

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3
Q

What organ controls composition?

A

The liver, lungs, kidney
And does up to 420 functions ( ͡° ͜ʖ ͡°)

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4
Q

What does homestatis breakdown?

A

Glucose & fat.

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5
Q

Define osmosis.

A

The spontaneous net movement or diffusion of solvent molecules.

SALT: shiver
NORMAL: RSC
DILUTED: bursts

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6
Q

List the function of homestatis.

A
  1. Maintain temperature.
  2. Maintain body composition.
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7
Q

What does composition controls?

A
  1. Pressure.
  2. Glucose level.
  3. Salt level ( people near fire sweat alot and lost salts).
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8
Q

TRUE OR FLASE: the levels of glucose and salt doesn’t necessarily have to be constant.

A

False, it has to be constant.

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9
Q

When does the hair stands?

A

When it’s cold.
And the muscle falls.

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10
Q

When does the hair falls down?

A

When it’s hot.
And the muscle stands.

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11
Q

What’s the hair muscle called?

A

The eracta muscle, with a never attached to it.

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12
Q

What happens when air gets trapped between the hairs?

A

Makes the hair warmer.

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13
Q

TRUE OR FALSE: white absorbs all colors.

A

True.

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14
Q

What’s an example of a short-term distribution in homestatis?

A

A fever.

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15
Q

What’s an example of a long-term distribution in homestatis?

A

Diabetes.

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16
Q

Mention the function of the skin in the vitamin D cycle.

A

Absorbing the UV light from the sun.

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17
Q

Mention the function of the liver in the vitamin D cycle.

A

Activate the component.

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18
Q

Mention the function of the kidney in the vitamin D cycle.

A

Take the component from the liver and turn it to vitamin D.

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19
Q

Define vasodilation.

A

The wideing of the blood vessel as a result of the relation of the blood vessel’s muscular walls and the blood flow is faster.

20
Q

Define vasoconstriction

A

The narrowing of blood vessels by small muscles in the walls l and its blood flow is slower.

21
Q

TRUE OR FALSE: the blood vessels change positions.

A

False, It doesn’t.

22
Q

The point of the narrowing and widening of the blood vessels is to..

A

Regulate the body’s temperature.

23
Q

What happens to the skin during overheat?

A

The hypothalamus reroute blood to the skin’s periphery which causes the body to sweat to cool down.

24
Q

What happens to the skin during overcool?

A

Peripheral vasoconstriction can limit heat loss while constricted vessels retain warmth.

25
Q

TRUE OR FALSE: the endocrine is fast.

A

False, it is slow.

26
Q

What type of signals does the endocrine system use?

A

Chemical signals.

27
Q

TRUE OR FALSE: the nervous system controls all glands

A

False, the endocrine controls all glands directly.

28
Q

TRUE OR FALSE: the endocrine is physically disconnected.

A

True.

29
Q

Where does the endocrine move?

A

The endocrine moves through the bloodstream.

30
Q

Why does hormones takes a long time?

A

Because it goes through the bloodstream.

31
Q

What’s the function of pituitary gland?

A

Controlling the growth.

32
Q

TRUE OR FALSE: balance is needed for hormones.

A

True.

33
Q

Define the Thyroid Stimulating Hormone (TSH).

A

THS is a hormone that your pituitary gland releases to trigger your thyroid to produce and release its own hormones.

34
Q

After the pituitary gland produces TSH where does it go?

A

To the Thyroid gland.

35
Q

What’s a thyroid gland?

A

A gland that produces hormones that regulate the body’s metabolic rate, growth and development.

36
Q

What’s a Thyroxine hormone?

A

also known as T4, is a type of thyroid hormone.

37
Q

What happens after the THS go the the Thyroid gland?

A

It goes to the T4 hormone.

38
Q

How much of T4 hormone is needed?

A

90-110 mg/cc

39
Q

What was the pituitary gland cycle called?

A

A negative feedback.

40
Q

Define the negative feedback.

A

Negative feedback is the result of a reaction is reduced to bring the system back to a stable state.

41
Q

How much it may take the endocrine system to send a message?

A

2 hours.

42
Q

Negative feedback can help..

A

Maintain environment.

43
Q

What’s a positive feedback?

A

Positive feedback is the result of a reaction increased to bring the system back to a stable state.

44
Q

How’s the body’s temperature regulated?

A

by a part of the brain called the hypothalamus.

45
Q

Define hypothalamus.

A

The hypothalamus protects the body’s internal organs by checking the body’s current temperature and compares it with the normal temperature of about 37°C.