Hormones And Homeostatis Flashcards
Give examples of homeostatis.
Controlling body water content, controlling body tempreture
What is homeostatis?
The maintenance of a constant enteral environment
What hormone is is produced in the pancreas and what is it’s function?
Hormone: insulin
Function: liver muscles take up glucose and convert to glycogen - maintains blood sugar
What hormone is is produced in the pituitary gland and what is it’s function?
Hormone: ADH
Function: controls the amount of water loss in urine
What two hormones is produced in the ovaries and what is it’s function?
Hormone: oestrogen
Function: stimulates uterus lining to develop, stimulates secondary female characteristics (eg breasts)
Hormone: progesterone
Function: maintains uterus lining
What hormone is is produced in the testes and what is it’s function?
Hormone: testosterone
Function: stimulates developments of male secondary characteristics (eg, pubic hair)
What hormone is is produced in the adrenal and what is it’s function?
Hormone: adrenaline
Function: increases heart and breathing rate for fight, fright or flight
Insulin/diabetes: how does insulin work?
It stimulates your body to take up more glucose and stimulates your liver cells to convert glucose into glycogen
Insulin/diabetes: what happens when the blood glucose level becomes too high?
As blood flows through pancreas the rise in concentration is detected, it releases insulin into blood which circulates around the body
Skin Temperature regulation: why?
Temp effects enzyme activity, the lower the temp, the more inactive enzymes become.
Skin Temperature regulation: what is the optimum temp?
37 degrees, at higher temps, enzymes become denatured
Skin Temperature regulation: sweating, what does it do?
The skin cools as the sweat evaporates
Skin Temperature regulation: what is vasodilation?
Blood vessels get wider, blood flows closer to the surface (of skin) heat is lost
Skin Temperature regulation: what is vasoconstriction?
Blood vessels near the surface become narrower near surface, less heat is lost
Insulin/diabetes: how does insulin work?
It stimulates your body to take up more glucose and stimulates your liver cells to convert glucose into glycogen