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34 Cards in this Set

  • Front
  • Back
Top causes of death
Heart disease 29%
Cancers 23%
Cerebrovascular (strokes) 7%
Diabetes 3%
Nutrition related 2/3
Alcohol-related 4.2%
Essential nutrients
needed to maintain life, not produced in the body
Six classes of nutrients
water, carbohydrates (CHO), protein, lipid (fat), vitamins, minerals
inorganic, 60% of the body
organic, immediate fuel for the body
organic, stored energy
organic, body structures, enzymes, hormones, transport
organic, regulate chemical reactions in the body, no energy
inorganic, regulate chemical reactions, no energy, stored in bones
Daily values
Nutrient standards on food labels, based on 2000 calorie diet
AMDR (Acceptable Macronutrient Distribution Ranges)
45-65% CHO
20-25% Fat
10-35% Protein
Self Check pg 53-57
Body cell turnover
each type of cell has a specific turnover rate, highest turnover rate= more sensitive to nutritional deficiencies
segments of DNA that code for proteins, affected by nutrient intake
Cell membrane
phospholipid bilayer, transport of substances in and out of cell
major site of energy production for the cell, converts feul from macronutrients to ATP
Cardiovascular system
supplies cells w/ oxygen, energy, & essential nutrients, takes away wastes
Extracellular fluid ECF
blood plasma around cell, allows material exchange
Intracellular fluid ICF
inside cells, medium for cellular reactions
clear portion of blood, contains nutrients, blood proteins, and hormones
Blood flow
right heart to lungs
lungs to left heart
left heart to aorta
aorta to arteries
arteries to capillaries (arterial)
capillaries to ECF
ECF to capillaries (vein)
capillaries to veins
veins to vena cava
vena cave to right heart
Portal circulation
intestinal capillary bed to liver
all CHO & protein goes there, liver sends it where it needs to go (mail center)
blood passes through and is filtered of wastes
Hormonal (endocrine) System
monitors homeostasis, chemical messengers (hormones)
body staying the same (Ph, temp, nutrients, water, etc.)
Nervous system
regulator of homeostasis
integrates external & internal stimuli, takes in info. from nervous & endocrine systems and makes a plan
Stress response
fight or flight, how the nervous system and hormone system work together
adrenaline, speed of our body, released during stress
Immune system
defense against non-self
Epithelial tissue
1st defense of the body, barrier, skin & digestive tract
specific immunity, protein deficiency can decrease antibody production