heart worksheet 2

1.Identify the diagram and label the parts in table:

A,B and C are chambers

D,E,F,G,H are blood vessels

Letter

Name of part

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

2. Identify the heart diagram and name the parts in table:

A,B,C and D are chambers

E,F,G,H,I,J are blood vessels

Letter

Name of part

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 arteries

I

aorta

J

coronary sinus

3. Identify the diagram and write the names of valves:

Letter

Name of valve

A

tricuspid valve

B

bicuspid valve

C

pulmonary semilunar valve

D

aortic semilunar valve

4. What is ECG or EKG ? What are components of ECG?

EKG or ECG is the record of electrical events in the heart, diagnoses cardiac abnormalities, and uses electrodes. The components are P-wave, QRS complex, and T-wave.

5. What is Cardiac cycle? Write the four events in cardiac cycle.

cardiac cycle is a summative description of all the events that occur during one single heartbeat. The 4 events in the cardiac cycle are the atrial systole, ventricular systole, atrial diastole, and ventricular diastole.

6.___stethoscope_________________is used to hear heart sounds. The first heart sound is due to closure of___the atrioventricular valves__________________ valves and second heart sound is due to closure of__the semilunar valves_____________ valves.

7.___baroreceptor_______________________reflex monitors blood pressure in aorta and carotid arteries.

___chemoreceptor____________________reflex monitors changes in pH and Carbondioxide.