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Grade 11-B Study Group > Avela Mayisela > Flashcards

Flashcards in Avela Mayisela Deck (6)
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1
Q

What is Homeostasis?

A

Homeostasis is the maintenance of a constant internal environment in the body.

2
Q

What are the two hormones secreted by the islets of Langerhans in the pancreas that control the glucose concentration in the blood?

A

Insulin and Glucose.

3
Q

What happens when the glucose concentration in the blood falls below normal?

A

The alpha cells of the islets of Langerhans detect the decrease and respond by secreting glucagon into the blood.

4
Q

What does a glucagon do?

A

It stimulates the conversion of glycogen to glucose in the liver and muscles.

5
Q

What is Diabetes mellitus?

A

Diabetes mellitus is a metabolic disease that is chronic and incurable, characterised by high glucose levels in the blood.

6
Q

What is hyperglycaemia?

A

An increased blood glucose level.