final exam: ch 22 Flashcards
vessels take blood away from heart
arteries
__ send blood to heart
veins
artery and veins entering and leaving heart are called
great vessels
blood flow through the heart is __
unidirectional
bp is formed via
heart contraction and relaxation cycles
bp is the force of blood pushing against the inside walls of __
vessels
minimum bp is essential to
circulate blood throughout body
pulmonary is the __ side of heart and pulmonary vessels
right
the pulmonary or systemic conveys blood to lungs and back to left heart
pulmonary
systemic is the __ vessels to body tissues and back to heart
left
heart is located in the
mediastinum
__ is the sac enclosing the heart
pericardium
name for the outer covering of the pericardium
fibrous
__ has two surfaces
serous
the parietal is the outer/inner surface
inner
visceral covers the __
heart
___ cavity is between the parietal and visceral layers
pericardial
3 layers of the heart wall
epicardium, myocardium, and endocardium
the___ is the anteroinferior borders of atria
auricle
heart chamber that carries deoxygenated blood to the right ventricle
right atrium
the right atrium and right ventricle are separated by the __ __
interventricular septum
__ __ receives deoxy venous blood from right atrium
right ventricle
__ __ receives oxygenated blood from lungs
left atrium
lungs -> pulmonary veins -> __ atrium
left
chamber of the heart that send blood to the body
left ventricle
which chamber of the heart has the highest bP
left ventricle
___ __ contain gap junctions and desmosomes
intercalated discs
__ __ allows the cardiac muscle fibers to contract as a single unit
gap junctions
___ term for the heart initiates its own heartbeat independent of external nerves
autorhythmicity
what node starts the audtorhythmicity of the heart
SA node
__ ___ contains both the sympathetic and parasympathetic divisions
coronary plexus
