1.1 Good Nutrition and Healthy Lifestyle Flashcards
What is the definition of nutrition?
science that links food to health and disease
What processes encompass nutrition?
ingestion, digestion, absorption, transport, and excretion of food substances
What are the five dimensions of health?
- physical health
- intellectual health
- emotional health
- social health
- spiritual health
What is physical health?
body’s ability to perform daily functions for survival
What is intellectual health?
the cognitive ability to learn and adapt
What is emotional health?
the ability to express or suppress emotion
What is social health?
ability to interact with others
What is spiritual health?
purpose for humans existence, cultural practices
What is the definition of food?
provides energy in terms of calories
What is the definition of nutrients?
substances found in food that provide the material for building and maintaining our bodies and regulating key metabolic processes that sustain life
What are the two most important reasons specific foods are chosen?
taste and texture
What are the two drives that influence our desire to eat?
- hunger
- appetite
What is the definition of hunger?
internal drive often experienced as a negative sensation
What is the definition of appetite?
external drive often related to pleasant sensations associated with food
What is the definition of satiety?
feeling of being full
What is the hypothalamus?
region of the brain that plays a role in hunger and feeling full
What is the GI tract?
main site in the body used for digestion and absorption of nutrients
What does the GI tract consist of?
mouth
esophagus
stomach
small intestine
large intestine
rectum
anus
What is the purpose of the stomach?
plays a major role in satiety and weight regulation
What are hormones?
compounds secreted into the bloodstream by one type of cell that acts to control the function of another type of cell
What are the hormones that increase hunger?
ghrelin
endorphins
neuropeptide-Y
What are the hormones that decrease hunger?
leptin
serotonin
cholecystokinin