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Flashcards in lecture 13 Deck (12)
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1
Q

sedentary living

A

inactive lifestyle which leads to higher health risks

2
Q

metabolic flexibility

A

the ability to switch between substrates

3
Q

the second law of fuel metabolism

A

the brain must be continuously supplied with glucose

4
Q

liver

A

maintains blood glucose levels. first stores glucose in the form of glycogen

5
Q

what happens if glucose levels fall too low

A

glycogenesis- the liver breaks down the glycogen it stores and releases it in the bloodstream

6
Q

gluconeogenesis

A

the liver converts amino acids to glucose

7
Q

insulin

A

hormone release by beta cells in the pancreas

8
Q

role of insulin

A

to lower blood sugar promoting glycogenesis only

9
Q

glucagon

A

secreted by alpha cells in the pancreas when blood sugar is low

10
Q

epinephrine

A

stimulated by excercise or stress and promotes glucagon secretion

11
Q

cortisol

A

stimulated by stress and increases substrates in the body

12
Q

what is the downside to constant stressor

A

there is a constant oversupply of fuel in the bloodstream leading to metabolic dysregulation