chapter 7 cardiovascular system and its control Flashcards
(18 cards)
blood flow must meet
metabolic demands
primary factor that determines cardio vascular adjustments is
blood pressure
major functions of the cardiovascular system
- deliver oxygen and nutrients
-remove CO2 and other waste products
-transport hormones and other molecules
-supports temperature balance and fluid regulation
-maintains acid base balance
-regulates immune function
what are the four chambers of the heart
left and right atrium, left and right ventricle
atrium are the ____ chambers
receiving
ventricles are the ___ chambers
pumping
the right atrium and ventricle are responsible for what kind of circulation
pulmonary
what does pulmonary circulation do
pumps deoxygenated blood from body to lungs
route of pulmonary circulation
vena cava> right atrium> tricuspid valve> right ventricle> pulmonary valve> pulmonary arteries> lungs
left atrium and left ventricle are responsible for what kind of circulation
systemic
what is systemic circulation
pumps oxygenated blood from lungs to body
route of systemic circulation
lungs> pulmonary veins> left atrium> mitral valve> left ventricle> aortic valve> aorta
what has a higher capillary density cardiac or skeltal muscle
cardiac
which muscle has higher mitochondria count cardiac or skeletal
cardiac
what does cardiac muscle have anatomically that skeletal or smooth muscle does not
intercalated discs
what causes the rhythmic continuous contraction in cardiac muscle
calcium induced calcium release
what is Functional syncytium
the whole collection of cells act as one unit while maintaining their cellular role
-in cardiac muscle all dem jawns contract at the same time
