Heart and circulation
Physiology And Developmental Biology 305 with Rhees at Brigham Young University
About this deck
By: Brooklyn Welch
Created: 2011-03-24
Size: 33 flashcards
Views: 20
Created: 2011-03-24
Size: 33 flashcards
Views: 20
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Upper chambers of the heart
atria
lower chambers of the heart
ventricles
route through the heart
inferior/superior vena cava-> right atrium->tricuspid valve-> right ventricle-> pulmonary valve-> left/right pulmonary artery-> lungs-> left/right pulmonary vein-> left atrium-> mitral valve-> left ventricle-> aortic valve-> body
sinoatrial node
in right atruim
open na/ close k channels-> open ca channels-> opening k channels
open na/ close k channels-> open ca channels-> opening k channels
atrioventricular node
lower right interatrial septum
delays impulses
delays impulses
bundle of HIS
divides impulse into two branches
purkinje fibers
extend to all walls of the ventricles
mid-diastole
relaxed, tricuspid and mitral valves open, 65-85 of ventricular fills in this phase
atrial systole
the last 20-35 percent of ventricle filled
ventricular systole
first heart sound
early diastole
second heart sound
pulse pressure
difference between systolic and diastolic
inotropic
strength or force of contraction
max sympathetic stimulation
250 bpm
max parasympathetic stimulation
20-30 beats per minute
stroke volume
amount of blood pumped out of each ventricle per beat- 70ml
cardiac output
stroke volume x heart rate
p wave
depolarization in the atria
qrs complex
depolarization of the ventricles
t wave
repolarization of ventricles
blood flow measured by
pressure/resistance
alpha adrenergic
vasoconstrivtion
beda-adrenergic
vasodilation
cholinergic
vasodilation
adh
vasoconstriction
histamine
vasodilation
blood volume
79- systemic
12-pulmonary
9-heart
12-pulmonary
9-heart
causes of edema
increased capillary hydrostatic pressure
decreased plasma proteins
increased interstitial fluid
decreased plasma proteins
increased interstitial fluid
hypovolemic shock
reduced blood volume
blood rushes to the heart
blood rushes to the heart
anaphalactic shock
allergic reaction
neurogenic shock
spinal cord damage
cardiogenic shock
inadequate blood circulation due to heart failure
hypertension
12 percent of all deaths
About this deck
By: Brooklyn Welch
Created: 2011-03-24
Size: 33 flashcards
Views: 20
Created: 2011-03-24
Size: 33 flashcards
Views: 20
About StudyBlue
STUDYBLUE makes things that make you better at school.
Things like online flashcards with photos and audio.
Things like personalized quizzes and friendly reminders about when (and what) to study next.
Think of it as a digital backpack™: access to all of your study materials online and on your phone.
STUDYBLUE exists to make studying efficient and effective for every student, for free. Join us.
“Simply amazing. The flash cards are smooth, there are many different types of studying tools, and there is a great search engine. I praise you on the awesomeness.”
Dennis
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