5 Questions
What is the effect of adrenalin on blood sugar levels?
Increases blood sugar levels
What happens when the glucose concentration in the blood rises?
The pancreas releases insulin
What is the function of insulin in the body?
To stimulate the liver and muscles to remove excess glucose from the blood and store it as glycogen
What is the effect of glucagon on the liver?
It stimulates the liver to convert glycogen to glucose
What is the role of adrenalin in the fight or flight response?
To increase blood flow to muscles and output of the heart
Study Notes
Adrenaline (Epinephrine)
- Normally produced by both the adrenal glands and certain neurons
- Plays a crucial role in the fight or flight response
Effects of Adrenaline
- Increases blood flow to muscles
- Increases heart output
- Causes pupil dilation
- Stimulates blood sugar levels by:
- Converting glycogen to glucose (glycogenolysis)
- Synthesizing glucose from glycerol and amino acids
- Inhibits the synthesis of glycogen from glucose
Glucose Regulation
- Glucose concentration in the blood is controlled by the pancreas
- Pancreas produces:
- Digestive enzymes
- Hormones insulin and glucagon
Insulin Function
- Released when glucose concentration rises
- Stimulates the liver and muscles to:
- Remove excess glucose from the blood
- Store it as glycogen
Glucagon Function
- Released when glucose concentration falls
- Stimulates the liver to:
- Convert stored glycogen into glucose
- Release glucose into the bloodstream
Blood Glucose Homeostasis
- The pancreas maintains glucose concentration in the blood within narrow limits through the regulation of insulin and glucagon.
This quiz covers the functions of adrenaline, also known as epinephrine, in the body's fight or flight response. It includes its role in increasing blood flow, heart rate, and glucose synthesis.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
