heart worksheet 2

What are the components of ECG?

P-wave, QRS complex, T-wave.

what is EKG or ECG?

the record of electrical events in the heart, diagnoses cardiac abnormalities, and uses electrodes.

What is the cardiac cycle?

A summative description of all events during one heartbeat.

What are the four events in the cardiac cycle?

Atrial systole, ventricular systole, atrial diastole, ventricular diastole.

What instrument is used to hear heart sounds?

Stethoscope.

What causes the first heart sound?

Closure of the atrioventricular valves.

What causes the second heart sound?

Closure of the semilunar valves.

what monitors blood pressure in the aorta and carotid arteries?

baroreceptors

what monitors changes in pH and carbondioxide?

chemoreceptors

identify and label the parts of the heart (ABC are chambers and DEFGH are vessels)

A- right atrium

B- left atrium

C- left ventricle

D- superior vena cava

E- aorta

F- pulmonary artery

G- right coronary artery

H- left coronary artery

identify and label the parts of the heart (ABCD are chambers and EFGHIJ are vessels)

A- left atrium

B- right atrium

C- left ventricle

D- right ventricle

E- superior vena cava

F- inferior vena cava

G- left pulmonary veins

H- pulmonary veins

I- aorta

J- coronary sinus

identify and name the valves:

A- tricuspid valve

B- bicuspid valve

C- pulmonary semilunar valve

D- aortic semilunar valve