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					            Ch. 40-42 Wrap Up
• Do you know the importance of these vitamins?
    B1, folic acid, C, A, D Ch 41
• Do you know the importance of these minerals?
    Ca, P, S, K, Fe, I Ch 41
• Are you familiar with the insulin/glucagon feedback
  system? Ch 41
• What is in blood? Ch 42
• What is the Bohr shift? Ch 42
• How does the nervous system relate to the circulatory
  and respiratory systems? Ch 42
             Why do we eat?
• 1. Fuel for work
• 2. Raw materials for biosynthesis
• 3. Essential nutrients
  – (substances the body cannot make for itself)
  – There are four types of essential nutrients:
     • amino acids(8), fatty acids, vitamins(13), minerals
8 Essential Amino Acids
   what does this mean?
• Minerals vs. Vitamins?
• Water soluble vs fat soluble
• Main minerals and their functions?
  – S P ONCH Ca K    and (Fe, Mg, Na)
PANCREAS: makes the hormones Insulin & Glucagon




       Homeostasis: Blood Glucose (0.1%)




  Example: Negative Feedback loop
  to maintain homeostasis
Cellular elements of blood:
                      •Pluripotent
                      stem cells
                      RBC
                      production
                      stimulated by:
                      Erythropoetin
                      • What is high
                      altitude
                      training?
CO2 + H20 = ??
Bohr Shift because of pH
  changes due to CO2
• How the
  Nervous
  system relates
  to the circu-
  latory and
  respiratory
  systems:
   Diaphragm Muscles:
negative pressure breathing
Counter current exchange
Counter current flow in fish gills




         • Better O2 exchange efficiency
                 Ch 43
• LOOKING AHEAD TO NEXT WEEK:

• You should spend some quality time with
  figure 43.14
           Lab 10: Measuring
          cardiovascular fitness
• Systolic (large number)
   – (pump or SQUEEZE)
• Diastolic (small number)
   – (when heart momentarily relaxes)

• What is a pulse?
• What is peripheral resistance?
• How do the above relate to heart disease?
   – Atherosclerosis, arteriosclerosis, heart attack, stroke

				
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