• 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

1/12

Click to flip

12 Cards in this Set

  • Front
  • Back
How do you upregulate cardiac output?
1. increase heart rate
2. increase stroke volume
How to increase stroke volume?
1. Increase preload (Starling's law)
2. increase sympathetic stimulation
3. decrease arterial pressure
Aneurysm
ruptured artery
Ischemia
restricted blood supply
Infarction
tissue death
Poiseullie's equation
Flow Q (mL/min) = pi(deltaP)r^4/8nl
Resistance equation
R = deltaP/Q = 8nl/pi r^4

turbulent flow ~ 1/r^5
What muscle fibers do arteries contain that give it is elasticity?
Elastin, collagen
What two things do reduced vessel radius lead to?
increased resistance, decreased arterial elasticity ==> both lead to high blood pressure
What factors do arteries and arterioles respond to?
Extrinsic, vasoconstricting
1. sympathetic nervous system
2. hormones (epinephrine, norinephrine)
Intrinsic, vasodilating
3. local chemical factors (NO) that enhance blood flow
steady state
aerobic metabolism increases energy production until this state, which is the amount of energy that the muscles require. aerobic metabolism won't go past this steady state - it won't produce more than the muscles demand.
"the wall"
when glycogen levels decrease and the body starts relying more on fat