Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/34

Click to flip

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
Water
inorganic, 60% of the body
Carbohydrates
organic, immediate fuel for the body
Lipids
organic, stored energy
Protein
organic, body structures, enzymes, hormones, transport
Vitamins
organic, regulate chemical reactions in the body, no energy
Minerals
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
Phytochemicals
---
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
Genes
segments of DNA that code for proteins, affected by nutrient intake
Cell membrane
phospholipid bilayer, transport of substances in and out of cell
Mitochondria
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
Plasma
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
Liver
all CHO & protein goes there, liver sends it where it needs to go (mail center)
Kidneys
blood passes through and is filtered of wastes
Hormonal (endocrine) System
monitors homeostasis, chemical messengers (hormones)
Homeostasis
body staying the same (Ph, temp, nutrients, water, etc.)
Nervous system
regulator of homeostasis
Hypothalamus
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
Epinephrine
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
Antibody
specific immunity, protein deficiency can decrease antibody production