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

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


Play button


Play button




Click to flip

20 Cards in this Set

  • Front
  • Back
av valve between left atrium and left ventricle
bicuspid (mitral) valve)
av valve btw right atria and rt ventricle
ventricles relaxed and blood is able to flow into them from the atria,
what causes av valves to slam shut?
at the end of diastole, ventricles contract initiating systole
period of time which ventricles are contracting beginning at lub and ending at dub
end of systole
ventricles nearly empty, stop contracting, pressure falls and blood begins to flow backward from pulm artery to right ventricle and aorata to left ventricle (but semilunar valves slam shut when pressure in the ventricles become lower than pressure in the great arteries)
closure of av valves at beginning of systole
sound of semilunar valves closing at the end of systole
inhibits depolarization by binding to receptors on the sa node
blood pressure
systemic arterial pressure
converts fibrinogen into fibrin when bleeding occurs, causing a scab
maintains plasma osmolarity, termed oncotic pressure
dorsal root ganglion
a bunch of somatic sensory cell bodies located just dorsal (back of) the spinal cord
preganglionic neuron
cell body in brainstem or spinal cord
postganglionic neruron
sends an axon to an effector(smooth muscle or gland)
sympathethic preganglionic efferent neurons
cell bodies in thoracic or lumbar regions of spinal cord
parasympathethic preganglionic neurons
cell bodies in cranial or sacrial region of spinal chord....PARA LONG PRE
sypathethic ganglia
close to spinal chord, far from target, so long axon
parasympathethic ganglia
far from chord, close to target so short axon
dilation of blood vessels in dermis
cuataneous vasodilation, results in heat loss by conduction