Blood circulation through the pulmonary and systemic circuits

Question 1

takes blood to and from the lungs

Answer 1

Pulmonary circuit

Question 2

vessels transport blood to and from the body tissues

Answer 2

Systemic circuit

Question 3

The right atrium received deoxygenated blood from three sources, superior vena, inferior vena cava, and coronary sinus.

Answer 3

Step 1

Question 4

When the right atrium is full of deoxygenated blood, it contracts and produces pressure to open the tricuspid valve then blood flows into the right ventricle. In addition, the papillary muscles pull on the chordae tendineae and help to open the cusps when the ventricles are relaxing and
filling with blood.

Answer 4

Step 1

Question 5

The right ventricle. When the right ventricle is full of deoxygenated blood, it contracts and pushes blood into the pulmonary trunk or pulmonary artery

Answer 5

Step 2

Question 6

Blood now blows through the pulmonary trunk (This blood vessel is an artery, however, allows the flow of deoxygenated blood. This is an exception to the rule because most of the arteries transport deoxygenated blood).

Answer 6

Step 3

Question 7

The pulmonary trunk divides in two arteries. The left pulmonary artery which supplies the left lung with deoxygenated blood and the right pulmonary artery which supplies the right lung with deoxygenated blood.

Answer 7

Step 3

Question 8

Gas exchange occurs in the pulmonary circuit.

Answer 8

Step 4

Question 9

The left atrium receives oxygenated blood from the lungs, it occurs through four pulmonary veins. Two from the right lung and two from the left lung.

Answer 9

Step 5

Question 10

When the left atrium is full of oxygenated blood, it contracts and produces pressure to open the bicuspid (mitral) valve then blood flows into the left ventricle. In addition, the papillary muscles pull on the chordae tendineae and help to open the cusps when the ventricles are relaxing and filling with
blood.

Answer 10

Step 5

Question 11

The left ventricle. When the left ventricle is full of oxygenated blood, it contracts and push blood into the ascending aorta

Answer 11

Step 6

Question 12

The ascending aorta. The ascending aorta is the first part of the aorta originating at the left ventricle and leading into the aortic arch. The aorta is the largest blood vessel in the body. It is an artery that carries blood directly from the heart and provides circulation for nearly all of the body’s tissues

Answer 12

Step 7

Question 13

The systemic circulation provides the functional blood supply to all body tissue. It carries oxygen and nutrients to the cells and picks up carbon dioxide and waste products. Systemic circulation carries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body. From the tissue capillaries, the deoxygenated blood returns through the superior vena cava, inferior vena cava, and coronary
sinus to the right atrium of the heart and the cycle starts over.

Answer 13

Step 8

Question 14

1

Answer 14

Right atrium

Question 15

2

Answer 15

Tricuspid vlave

Question 16

3

Answer 16

Right ventricle

Question 17

4

Answer 17

Pulmonary trunk

Question 18

5

Answer 18

Left atrium

Question 19

6

Answer 19

Mitral valve

Question 20

7

Answer 20

left ventricle

Question 21

8

Answer 21

Aorta