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FAU - HSC 4139 - Week 5 - Class Notes

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FAU - HSC 4139 - Week 5 - Class Notes

School: Florida Atlantic University
Department: OTHER
Course: Weight Management
Professor: Heather LaJoie
Term: Spring 2018
Tags:
Name: Week 5
Description: Notes to be on exam
Uploaded: 02/26/2018
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background image Appetite and Body Weight Regulation  Energy Balance Equation Issue of Energy 
Homeostasis In Obesity
“Simplified Appetite­Body  Weight Regulation Model” Leptin and Insulin   ­Change in Energy Stores = Energy intake – Energy Expenditure ­ Weight loss occurs when energy intake is consistently less than energy  expenditure ­Weight gain occurs when energy intake is consistently greater than energy
expenditure
*The discovery of brain neuropeptide systems, hormonal feedback signals, 
and gastrointestinal factors involved in body weight regulation, and their 
interactions, have led to a more comprehensive understanding of the weight
regulatory process 
  ­ energy homeostasis: collection of biological phenomena that work to  keep energy stores constant ­integrates signals generated in the periphery involved in hunger, feeding, satiety, absorbed nutrients and energy expenditure   ­1 Short term component:  nutrients absorbed by the body during feeding that generate signals 
processed by afferent centers in the brain that control the onset and 
cessation of feeding on a meal­to­meal basis sight, smell, and taste of food along with biological signals arising 
from the oral cavity, gastrointestinal tract and associated organs, 
liver and pancreas, as well as humoral (peptide) and sensory 
(neural) feedback coordinated by afferent centers in the hindbrain.
­2 Long term component: involves hormone/energy­sensing neurons in the hypothalamus that 
monitor signals generated by energy stores
integration by the hypothalamus of hormonal signals generated by  body’s fat mass (energy stores), and signals generated by the liver 
and pancreas; the hypothalamic centers also coordinate input from 
sensory and hormonal signals received and integrated by the 
hindbrain
­ leptin: adipose tissue derived hormone along with Insulin, a pancreatic  derived hormone serve as long­term feedback signals to the CNS 

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School: Florida Atlantic University
Department: OTHER
Course: Weight Management
Professor: Heather LaJoie
Term: Spring 2018
Tags:
Name: Week 5
Description: Notes to be on exam
Uploaded: 02/26/2018
2 Pages 45 Views 36 Unlocks
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  • Notes, Study Guides, Flashcards + More!
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