Cardiovascular

Question 1

Pulmonary circulation

Answer 1

Sends deoxygenated blood from the right side of heart to lungs through pulmonary artery, and oxygenated blood from the lungs to the left side of heart through the pulmonary vein

Question 2

Systemic circulation

Answer 2

Send oxygenated blood from the left side of heart to the tissues through the aorta and deoxygenated blood from the tissues to the right side of heart through the vena cava

Question 3

Heart valves

Answer 3

Tricuspid separates the right atrium and right ventricle, biscuspid (mitral)separates the left atrium and left ventricle, pulmonary valve at the exit of right ventricle and aortic valve at the exit of the left ventricle

Question 4

Trigger of heart beat

Answer 4

Signal starts at sa node, travels to antrioventricular node down the bundle of is, into the purkinje system

Question 5

Control of heart rate

Answer 5

Parasympathetic decreases heart rate, sympathetic nervous system acts to raise heart rate

Question 6

Cardia output is

Answer 6

The amount of blood pumped per minute , 5 litres per minute at rest, cardiac output = heart rate x stroke volume

Question 7

Arteries

Answer 7

Carry blood from the heart to tissues

Question 8

Veins

Answer 8

Carry blood to the heart

Question 9

Capillaries

Answer 9

Are the site of respiratory Gad exchange and nutrient exchange

Question 10

Components of blood

Answer 10

Plasma platelets red blood cells

Question 11

Ventilation is

Answer 11

The process of moving air into and out of the trachea, bronchi and lungs

Question 12

Diffusion is

Answer 12

The process of exchanging oxygen and carbon dioxide across the alveolar capillary membranes

Question 13

Perfusion is

Answer 13

The process of supplying oxygenated blood to the lungs and other organs via blood vessels

Question 14

Respiration is

Answer 14

Respiration is the process in which cells use oxygen to produce energy aerobically

Question 15

The breathing pipe order

Answer 15

Nose, pharynx, larynx, trachea, bronchi, alveoli

Question 16

three steps of respiration

Answer 16

Pulmonary ventilation, inhalation and exhalation, exchange of air between atmosphere and alveoli, external respiration , exchange of Gad between alveoli and the blood in the lungs,, internal respiration is the exchange of gases between systemic capillaries and tissue cells

Question 17

Boyles law

Answer 17

In a closed space pressure and volume are inversely related, as volume decreases pressure increases and vice versa