HEART Flashcards
right side of the heart pumps blood
pulmonary circulation
left side of the heart pumps blood
systemic circulation
a double layer sac
pericardium
a tough connective tissue in outer layer
a. fibrous pericardium
b. serous pericardium
c. parietal pericardium
d. visceral pericardium
a. fibrous pericardium
part of serous that lines the fibrous pericardium
a. fibrous pericardium
b. serous pericardium
c. parietal pericardium
d. visceral pericardium
c. parietal pericardium
part that covering the heart surface
a. fibrous pericardium
b. serous pericardium
c. parietal pericardium
d. visceral pericardium
d. visceral pericardium
inner layer; consists of flat epithelial cells with a thin layer of connective tissue
a. fibrous pericardium
b. serous pericardium
c. parietal pericardium
d. visceral pericardium
b. serous pericardium
produce by serous pericardium; help reduce friction as the heart moves
pericardial fluid
drain blood from most of the body
a. superior and inferior vena cava
b. coronary sinus
c. left atrium
d. interatrial septum
a. superior and inferior vena cava
drains blood from the lungs
a. superior and inferior vena cava
b. coronary sinus
c. left atrium
d. interatrial septum
c. left atrium
drains blood from heart muscle
a. superior and inferior vena cava
b. coronary sinus
c. left atrium
d. interatrial septum
b. coronary sinus
separates the two atria
a. superior and inferior vena cava
b. coronary sinus
c. left atrium
d. interatrial septum
d. interatrial septum
functions primarily as reservoir
atria
major pumping chambers
ventricles
separating the atria from ventricle
coronary sulcus
pumps blood into pulmonary trunk
right ventricle
pumps blood into aorta
left ventricle
separating the two ventricle
interventricular septum
between the atria and ventricle; open when ventricle relax
a. atrioventricular valves
b. semilunar valves
a. atrioventricular valves
between the ventricle and artery; open when ventricle contract
a. atrioventricular valves
b. semilunar valves
b. semilunar valve
has 3 cusps between the right atrium and right ventricle
a. tricuspid valve
b. bicuspid valve
c. pulmonary SL valve
d. aortic SL valve
a. tricuspid valve
right ventricle and pulmonary trunk
a. tricuspid valve
b. bicuspid valve
c. pulmonary SL valve
d. aortic SL valve
c. pulmonary SL valve
left ventricle and aorta
a. tricuspid valve
b. bicuspid valve
c. pulmonary SL valve
d. aortic SL valve
d. aortic SL valve
2 cusps between the left atrium and left ventricle
a. tricuspid valve
b. bicuspid valve
c. pulmonary SL valve
d. aortic SL valves
b. bicuspid valve
supply oxygenated blood to the wall of heart
coronary arteries
LAYERS OF THE HEART:
thin, forming the smooth outer surface
a. epicardium
b. myocardium
c. endocardium
a. epicardium
LAYERS OF THE HEART:
smooth inner surface
a. epicardium
b. myocardium
c. endocardium
c. endocardium
LAYERS OF THE HEART:
thick middle layer composed of cardiac muscle
a. epicardium
b. myocardium
c. endocardium
b. myocardium
Na+ and Ca+ channels open
depolarization phase
K+ channel open and Ca+ channel close
repolarization phase
results from depolarization of atrial myocardium; its beginning precedes atrial contraction
a. P wave
b. QRS complex
c. T wave
a. P wave
results from depolarization of ventricle; its beginning precedes ventricular contraction
a. P wave
b. QRS complex
c. T wave
b. QRS complex
results from repolarization of ventricle; its beginning precedes ventricular relaxation
a. P wave
b. QRS complex
c. T wave
c. T wave
law that influences cardiac output
starling’s law of the heart
