What Is Thermoregulation?
8. "Thermoregulation" is the process in which your body regulates hypothalamus temperature to its normal body temperature.
9. Hypothalamus is the portion of the brain that contains sensors that monitor body temperature.
10. a) The hypothalamus senses the high temperature so it sends sends to the brain. This creates a reaction as the blood vessels in the skin dilate to radiate heat, and sweat glands increase sweat production.
b) The two mechanism the body uses to heat itself are when the blood vessels in the skin constrict (tighten), reducing heat loss, and the muscles begin to shiver, generating heat.
11. a) The stimulus would be that the hypothalamus senses that your body temperature is too high and it sends signals to your brain to …show more content…
a) The stimulus would be that the hypothalamus senses that your body temperature is too low and it sends signals to your brain to heat your body. The response would be that your blood vessels in your skin constrict (tighten), reducing heat loss, and your muscles begin to shiver, generating heat.
b) The feedback loop is a positive feedback because the stimulus is increasing as well as your body temperature. If your body temperature is high, you would start sweating to cool your body and direct your high temperature back to normal body temperature (36-38 *C). Since your body temperature is too low, you start to shiver which generates heat and your body temperature goes back up to normal temperature (36-38 *C).
13, EXAMPLE: When driving on the road/streets, you need to keep a specific speed limit. The speed limit is 40-45 miles per hour. If you go over the limit, you get a ticket. If you go under the limit, you get a ticket.
a) Yes there would be a positive feedback; if you go lower than the speed limit (stimulus), then you would have to step on the gas (signal) and you would go faster (response).
b) Yes there would be a negative feedback; if you go faster than the speed limit (stimulus), then you would step on the brake (signal), and slow down
9. Hypothalamus is the portion of the brain that contains sensors that monitor body temperature.
10. a) The hypothalamus senses the high temperature so it sends sends to the brain. This creates a reaction as the blood vessels in the skin dilate to radiate heat, and sweat glands increase sweat production.
b) The two mechanism the body uses to heat itself are when the blood vessels in the skin constrict (tighten), reducing heat loss, and the muscles begin to shiver, generating heat.
11. a) The stimulus would be that the hypothalamus senses that your body temperature is too high and it sends signals to your brain to …show more content…
a) The stimulus would be that the hypothalamus senses that your body temperature is too low and it sends signals to your brain to heat your body. The response would be that your blood vessels in your skin constrict (tighten), reducing heat loss, and your muscles begin to shiver, generating heat.
b) The feedback loop is a positive feedback because the stimulus is increasing as well as your body temperature. If your body temperature is high, you would start sweating to cool your body and direct your high temperature back to normal body temperature (36-38 *C). Since your body temperature is too low, you start to shiver which generates heat and your body temperature goes back up to normal temperature (36-38 *C).
13, EXAMPLE: When driving on the road/streets, you need to keep a specific speed limit. The speed limit is 40-45 miles per hour. If you go over the limit, you get a ticket. If you go under the limit, you get a ticket.
a) Yes there would be a positive feedback; if you go lower than the speed limit (stimulus), then you would have to step on the gas (signal) and you would go faster (response).
b) Yes there would be a negative feedback; if you go faster than the speed limit (stimulus), then you would step on the brake (signal), and slow down