A&P review sheet Flashcards
What is the heart valve that prevents blood backflow from the pulmonary trunk to the right ventricle
Pulmonary
What drains vlood from thorax and the lowe parts of the body and sends it to right atrium
inferior vena cava
What is the heart valve that prevents blood backflow from the right atrium and the right ventricle
semi lunar -tricuspid-r av valve
What is the measure of the volume of blood ejected by each heart ventricle per heart beat
stroke volume
what is the heart valve tht prevents blood backflow from ascending aorta to the left ventricle
aortic semilunar
What are the specialized cardiac cells that can generate action potentials at a fixed rate
SA node
What transports blood from the right ventricle to the pulmonary arteries
pulmonary trunk
What are the heart valves that resist higher blood pressure than the other heart valves
aortic semilunar or mitral or bicuspid
What is the membrane lining the interior surface of the heart chambers
endocardium
What is the heart valve that prevents blood backflow from the left atrium to the left ventricle
mitral, bicuspid, LA
Wht is the hole across the interatrial septum in a fetus and newborn
Foramen oval
What is a hole between aortic arch and pulmonary trunk in the fetus and newborn
ductess arteriosis
What is also known as the heart wall
pericardium
What is located within the interatrial septum
AV node
what is located within the interventricular septum
AV bundle SA node Perkinje fibers
What is located within the wall of the right atrium
SA node AV node and fossa ovale
What is located within the wall of ventricles
perkinje fibers
hat is the connective tissue that connects the papillary muscle to the heart valves.
cordae tendinae
What is the great vessel from which arteries branch off to send blood to the upper limbs and head
Aortic Arch
What is the great vessel from which coronary arteries branch off to send blood to cardiac muscle
Ascending Aorta
what is the great vessel that transports blood to the thorax and lower parts of the body
descending aorta
What is the heart chamber that receives blood from four blood vessels
LA
What is the heart chamber that receives blood from the three blood vessels
RA
what is the measure of the volume of blood ejected by each heart ventricle per minute
Cardiac output
What is the membrane between the pericrdial fluid and the myocardium
visceral pericardium
What is the most muscular chamber
left ventricle
What is the pacemaker of the heart
SA node
What is the portion of the ECG resulting from the atrial depolarization
P Wave
What is the portion of the EKG that results from the ventricular depolarization and atrial repolarization
QRS complex
What is the portion of the EKG resulting from the ventricular repolarization
T Wave
What is the superficial fibrous later of the structure covering the heart
fibrous pericardium
What transports blood from the coronary veins to the right atrium
coronary sinus
What transports blood from the lungs to the left atrium
pulminary veins
What transports blood from the pulmonary trunk to the lungs
pulmonary arteries
what transports blood from the upper limbs neck and head to the right atrium
superior VC
What is the residual scar tissue of the hole across the interatrial septum in the fetus and newborn
fossa ovalis
What is the heart sound that is only present in people under 30
S3
The ________is the heart sound resulting from the blood turbulence associated with the closure of the semilunar valves
2nd heart sound
The __________is the heart sound resulting from the blood turbulence associated with the closure of the bicuspid and tricuspid valves
1st heart sound
The cardiac conduction system is divided into the following five portions
SA node , AV node, bundle branches, perkinje fibers, myocardium
The contraction of the __________keeps the bicuspid and tricuspid valves closed during ventricular contraction.
Papillary muscles
The ventricular contraction is called
systolic
The ventricular relaxation is called
diastolic
