Homeostasis 🌞

Question 1

What happens to your blood glucose level when you eat?

Answer 1

1) pancreas releases insulin
2) liver absorbs excess glucose and converts it to glycogen
3) blood glucose level returns to normal

Question 2

What happens to your blood glucose level when you don’t eat?

Answer 2

1) pancreas receptors release glycogen
2) liver converts glycogen to glucose
3) blood glucose level returns to normal

Question 3

What happens when you get hotter?

Name 2 cooling mechanisms

Answer 3

1) receptors in skin and hypothalamus release cooling mechanisms
2) a) sweat- the water evaporates of of your skin by heat from the body and you cool down
b) vasodilation- your skin vessels dilate so more heat is lost

Question 4

What happens when you get colder?

Name 4 heating mechanisms

Answer 4

1) receptors release heating mechanism control and you return to the normal temp
2) a) stop sweating
b) vasoconstriction- the narrow blood vessel means less heat is lost as blood is deeper
c) shivering- muscles contract so muscles respire. Heat is made
d) goosebumps- hair stands up which is a good insulator so heat loss is slower

Question 5

Name 3 thing that need to be kept constant in your body

Answer 5

a) body water content
b) body temperature
c) blood glucose level

Question 6

Optimal body temp?

Answer 6

37°c