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Homeostasis > Thermoregulation - High > Flashcards

Thermoregulation - High Flashcards

1
Q

What is thermoregulation?

A

Regulation of body temperature

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2
Q

What responses regulate a high body temperature? (4)

A

Behavioural
Tissue
Blood Vessel
Metabolic

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3
Q

Which receptors detect changes in temperature?

A

Thermoreceptors in skin + hypothalamus

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4
Q

What modulates the behavioural response for high temp?

A

Hypothalamus’ thermoregulatory centre

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5
Q

Effector for behavioural response?

A

Cerebral cortex

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6
Q

Behavioural response to high temp? (5)

A 
Remove clothing
Turn on air-con
Cold shower
Reduce activity
Spread out
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7
Q

Feedback for behavioural response?

A

Negative - lowers temp

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8
Q

Modulator for tissue response?

A

Hypothalamus’ thermoregulatory centre - Sympathetic nervous system

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9
Q

Effector of tissue response?

A

Sweat glands

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10
Q

Response of tissue response?

A

Secrete sweat - so sweat evaporates

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11
Q

Feedback of tissue response?

A

Negative

Lowers body temp

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12
Q

Modulator for blood vessel response?

A

Hypothalamus’ thermoregulatory centre

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13
Q

Effector of blood vessels response?

A

Arterioles’ smooth muscle

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14
Q

Response of the Blood vessels response?

A

Vasodilation - increased blood flow to extremities

Heat energy is lost via radiation

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15
Q

Feedback for tissue response?

A

Negative

Lowers body temp

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16
Q

What modulates the metabolic response to high temp and how?

A

Hypothalamus’ thermoregulatory centre - TSH inhibiting factor
Pituitary gland - secretes less TSH
Thyroid gland - secretes less thyroxine

17
Q

Effector of metabolic response?

A

Somatic body cells

18
Q

Response of metabolic response?

A

Metabolic rate decreases
= less cellular respiration
= less heat production

19
Q

Feedback of metabolic response?

A

Negative

Lowers body temp

20
Q

Which receptors detect change in temperature?

A

Thermoreceptors in skin + hypothalamus

Homeostasis (11 decks)

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