Lec: Appetite control (1) Flashcards
exercise can increase the secretion of:
- irisin &
- growth hormone
Irisin is produced by:
muscle
Irisin acts on _____ to increase its metabolism of ____&_____.
- white fat
- triglycerides & glucose
Growth Hormone is from the?
anterior pituitary
__ calories/24 hrs. for 1 pound of resting muscle
50
__ calories/24 hrs. for 1 pound of fat
1
Growth hormone stimulates production of ____ ____ to increase _____.
- growth factors
- mitosis
Mitosis increases ___ __, & __ __.
- muscle mass
- bone strength
Increased muscle mass, increases __ __ __.
basal metabolic rate
exercise may decrease __ __ __.
myostatin gene expression
myostatin is a __ __ produced in __ & __ __.
- growth factor
- skeletal & cardiac muscle
myostatin provides __ __ control on muscle __.
- negative feedback control
- growth
myostatin inhibits __ __ & __ __.
- myoblast differentiation
- protein synthesis
myostatin in excess may contribute to __ __ (__) & __ __.
- muscle degeneration (sarcopenia)
- insulin resistance
too little myostatin = overly enlarged __ & __ __.
- heart
- skeletal muscle
sateity center of the brain:
ventral medial hypothalamus
feeding center of the brain:
lateral hypothalamus
orexigenic signals->
stimulate feeding
anorexigenic signal->
inhibit feeding
orexis:
appetite in greek
hormones & NT’s from:
- digestive track
- adipose tissue
- immune system
- brain
in individuals with appetite & weight control malfunctions, causes can include:
- psychological
- neural
psychologically using food as a substitute for other pleasures may be the result of (3):
- life experience (such as prior abuse: psych, or physical)
- an increased risk for addictive behavior
- diets & eating customs defined by social cultures
- or lack of other pleasurable stimuli in one’s life
food addictions may be due to:
- genetic mutations involved in the neural pleasure pathways in the brain
- or poorly developed anatomical pleasure pathways
