Controlling body temperature Flashcards
The body has to … the amount of e… gained and … to keep the c… body t… constant
The body has to balance the amount of energy gained and lost to keep the core body temperature constant
Where in the brain are there receptors that are sensitive to the temperature of the blood flowing through the brain
The thermoregulatory centre
Where does the thermoregulatory centre receive impulses from
Temperature receptors in the skin
What happens when the body is too hot
- Temp … detect the c… body … is too …
- The … centre acts as a coordination c… and receives info from … and t… the e… to act
- Effectors eg. … glands produce a r…
- The body … down
- Temp receptors detect the core body temp is too high
- The thermoregulatory centre acts as a coordination centre and receives info from receptor and triggers the effectors to act
- Effectors eg. Sweat glands produce a response
- The body cools down
What happens when the body is too cold
- Temp … detect the core … temp is too …
- The thermoregulatory … acts as a c… centre and receives i… from receptor and triggers the e… to act
- E… eg. Muscles produce a response
- The body … up
- Temp receptors detect the core body temp is too low
- The thermoregulatory centre acts as a coordination centre and receives info from receptor and triggers the effectors to act
- Effectors eg. Muscles produce a response
- The body warms up
What ways do some effectors work so that they work at the same time to achieve a very precise temp
Agnostically
What are the body’s responses when it is too hot
-… is produced by sweat … and … from the skin transferring … to the …
-blood … supplying the skin … so more … flows close to the … which helps … heat to the …
—>…
-sweat is produced by sweat glands and evaporates from the skin transferring energy to the environment
-blood vessels supplying the skin dilate so more blood flows close to the surface which helps transfer heat to the environment
—>vasodilation
What are the body’s responses when it’s too cold
-… stands up to trap an … layer of …
-no … is produced
-… vessels supplying the skin … to close of the skins … supply
—>…
-you … which requires … which transfers some .. to … your body
-hair stands up to trap an insulating layer of air
-no sweat is produced
-blood vessels supplying the skin constrict to close of the skins blood supply
—>vasoconstriction
-you shiver which requires respiration which transfers some energy to warm your body
What is vasodilation
When … vessels supplying the … dilate so … blood … close to the surface of the …
When blood vessels supplying the skin dilate so more blood flows close to the surface of the skin
What is vasoconstriction
When … vessels supplying … capillaries … to … off the … blood supply
When blood vessels supplying skin capillaries constrict to close off the skins blood supply
