SB7b: Hormonal Control Of Metabolic Rate Keywords Flashcards
Adrenalin
A hormone that is released from the adrenal glands when you are nervous or excited.
Fight-or-flight response
Several responses that prepare the body for sudden action, including increased heart rate, increased blood flow to muscles, and release of glucose into the blood.
Glycogen
A polymer storage material made from glucose, particularly in liver cells
Metabolic rate
The overall rate at which chemical reactions take place in the body.
Negative feedback
A control mechanism in which a change in a condition, such as temperature, causes the opposite change to happen and so brings the condition back to a normal level.
Resting metabolic rate
The metabolic rate when the body is at rest.
Thyroxine
A hormone released by the thyroid gland, which affects metabolic rate by changing how certain cells work (e.g. causes heart cells to contract more strongly).
