Chapter 19 The Heart

Question 0

Fully oxygenated blood goes out to the tissues through which side of the heart?

Answer 0

Left side of the heart

Question 1

Which side of the heart is responsible for taking less oxygenated blood to the lungs?

Answer 1

Right side of the heart

Question 2

What is the mediastinum?

Answer 2

The ex casement tissue lining for the heart

Question 3

Define the pericardium.

Answer 3

The double walled sac that encloses the heart to resist over expansion and decreases friction. Anchored to the sternum and diaphragm

Question 4

What is the parietal pericardium?

Answer 4

Outer most layer made of fibrous connective tissue and thin serous layer

Question 5

Visceral pericardium provides what function?

Answer 5

Covers the surfCe of the heart serous lining

Question 6

What is pericarditis?

Answer 6

Inflammation of the pericardium membranes. Painful to breath and each heart beat.

Question 7

What makes up the heart wall?

Answer 7

Epicardium serous membrane
And the endocardium inner lining of the heart and blood vessels.
Myocardium cardiac muscle produces wringing out motion in each heart beat

Question 8

The atrioventricular valve is located where and what type of valve is it?

Answer 8

Located Between artia and ventricles.
Right av ( 1st in sequence ) tricuspid
Left av 2 nd in sequence bicuspid

Question 9

What are semi lunar valves?

Answer 9

Control blood flow into the arteries. Open and close with the pressure of contraction
Pulmonary between right ventricle and pulmonary trunk.
Aortic between left ventricle and aorta

Question 10

What is the order of blood flow through the heart.

Answer 10

Superior venae cava into the right atrium
Through the right av into right ventricle
Contraction pushes blood through the pulmonary valve tricuspid
From the lungs through pulmonary veins to left atrium
From left av valve bicuspid and into the ventricle
Contraction pushes it through the aorta and out to the body
Back through the superior venae cava

Question 11

How much blood is diverted to supply the heart

Answer 11

5%

Question 12

What is systole?

What is diastole?

Answer 12

Systole contraction

Diastole relaxation

Question 13

What fuels the heart ?

Answer 13

Aerobic respriation. No oxygen debt. Uses all fuels glucose fatty acids and ketones

Question 14

What’s the trail of conduction through the heart?

Answer 14

as node over atrium and to the av node down av bundle and back through the purkinje

Question 15

What’s the sinus rhythm ?

Answer 15

Hear beat stimulated by the sa node 60-100 bpm

Question 16

What is nodal rhythm?

Answer 16

The heart rate set by av node if as node not working 40-50 bpm

Question 17

What’s arrhythmia?

Answer 17

Any abnormal cardiac rhythm

Question 18

What’s an atrial flutter?

Answer 18

Atria ectopic foci causing 200-400 bpm

Question 19

What is premature ventricle contractions

Answer 19

Beating off timing caused by stress or stimulants like caffeine