26. The Fed/FAST Cycle Flashcards
1
Q
2-4 hour period after ingestion of a normal mea
A
absorptive state
2
Q
absorptive state
insulin and glucagon secretion
A
increased
3
Q
fasting state
insulin, glucagon, epinephrine
A
dec insulin
inc glucagon
inc epinephrine
4
Q
anabolic period
A
absorptive state
5
Q
catabolic period
A
fasting state
6
Q
ketone bodies can meet __% requirement of the brain
A
20%
7
Q
brain uses ___ as fuel in fasting state
A
ketone bodies and glucose
8
Q
RBC in fasting state use
A
glucose exclusively
they lack mitochondria
9
Q
skeletal muscle utilizes ___ as fuel during fasting
A
free fatty acids (major source, as well as during marathon)
ketone
proteins-> gluconeogenesis
10
Q
can act as energy store for short term demands of muscle
A
phosphocreatine
