Cadiovasculsr System

Question 1

Describe the location of the heart

Answer 1

Shaded to the left of the sternum, in between the second and sixth ribs; usually the size of your fist

Question 2

The wall of the heart is made of

Answer 2

Intercalated discs

Question 3

The heart wall requires a large amount of _____ to _____

Answer 3

Calcium; contract

Question 4

What are the four parts of the cardiovascular system in their functions

Answer 4

Heart – pumps oxygen and nutrients to the blood
Arteries – pump oxygenated blood away from the heart
Veins – pump deoxygenated blood into the heart Capillaries – control oxygen and carbon dioxide diffusion

Question 5

Describe the process of blood flow

Answer 5

Blood enters the first main vein (superior vena cava). It then travels to the right atrium. Blood flow continues on into the tricuspid valve and enters the right ventricle. It bends back up to go into the pulmonary semilunar valve. Blood then enters the pulmonary arteries and goes into the lungs. In the lungs it absorbs oxygen and releases carbon dioxide. After exiting the lungs it goes into the pulmonary veins. Blood then goes into the left atrium, then the AV valve. Blood flows into the left ventricle and then another semilunar valve. Blood finally leaves the heart through the aorta.

Question 6

What is a pulmonary circuit?

Answer 6

Sends deoxygenated blood to the lungs to pick up oxygen and unload carbon dioxide

Question 7

What is a systemic circuit?

Answer 7

Since oxygenated blood and nutrients to all body cells and removes waste.

Question 8

What makes a heartbeat sound?

Answer 8

The heartbeat sounds are due to vibrations in the heart tissues associated with the closing of valves. The first part of the heart sound occurs during ventricular contraction when the AV valves are closing. The second part occurs during ventricular relaxation when the pulmonary and aortic valves are closing.

Question 9

What are the two names of the system where’s currently studying

Answer 9

Cardiovascular and circulatory

Question 11

Know how to label the picture from the quiz (#4) with all the terms from the picture on the board this morning.

Answer 11

……..

Question 13

Label Endocardium, Myocardium, and Pericardium; Fibrous, Serous, and Parietal Space

Answer 13

Use quiz