Released by the adrenal glands
Released in response to stressful or scary situations
Your brain detects fear/ stress and sends nervous impulses
to the adrenal glands, which secrete adrenaline
Adrenaline gets your body ready for a fight or flight response
Adrenaline
It does this by triggering mechanisms to increase the suppy
of oxygen and glucose to cells
It increases blood flow to muscles, so cells receive more
oxygen and glucose for increase respiration
Increased glucose can be used to fuel muscle contraction
Constrcits some blood vessels to increase blood pressure
Dilates blood vessels to increase blood flow to muscles
Released by the thyroid gland
Regulates the basal metabolic rate, speed at which chemical Ed
reactions in the body occur while the body is at rest C
How your body controls the levels of hormones in the blood
Negative feedback
When the levels of certain substances gets too low or high, the
body triggers a response to help bring the levels back to a
normal range
When the thyroxin level is lower than norma, the hypothalamus is
stimulated to released thyrortopin releasing hormone (TRH)
TRH stimulates the pituitary gland to released thyroid stimulating Thyroxine
hormone (TSH)
Decrease from normal level
Released in response to stressful or scary situations
Your brain detects fear/ stress and sends nervous impulses
to the adrenal glands, which secrete adrenaline
Adrenaline gets your body ready for a fight or flight response
Adrenaline
It does this by triggering mechanisms to increase the suppy
of oxygen and glucose to cells
It increases blood flow to muscles, so cells receive more
oxygen and glucose for increase respiration
Increased glucose can be used to fuel muscle contraction
Constrcits some blood vessels to increase blood pressure
Dilates blood vessels to increase blood flow to muscles
Released by the thyroid gland
Regulates the basal metabolic rate, speed at which chemical Ed
reactions in the body occur while the body is at rest C
How your body controls the levels of hormones in the blood
Negative feedback
When the levels of certain substances gets too low or high, the
body triggers a response to help bring the levels back to a
normal range
When the thyroxin level is lower than norma, the hypothalamus is
stimulated to released thyrortopin releasing hormone (TRH)
TRH stimulates the pituitary gland to released thyroid stimulating Thyroxine
hormone (TSH)
Decrease from normal level
