Cardiorespiratory System

Cardiorespiratory System

Multiple Choice

Which organ is responsible for taking oxygen into the body?

• Heart

• Lungs

• Kidneys

• Spleen

Multiple Choice

Which of the following is a function of the lungs?

• Circulation of blood

• Intake of oxygen

• Removal of lactate

• Control of breathing rate

Multiple Choice

Where are the lungs positioned?

• Thoracic cavity

• Pelvic girdle

• In front of the sternum

• Behind the abdominal cavity

Multiple Choice

What happens to the diaphragm during inspiration?

• It contracts

• It relaxes

• It extends

• It flexes

Multiple Choice

What happens to the diaphragm during expiration?

• Contracts and ascends

• Contracts and descends

• Relaxes and moves upwards

• Relaxes and moves downwards

Multiple Choice

During inhalation, where does air flow to after leaving the pharynx?

• Bronchi

• Larynx

• Alveoli

• Bronchioles

Multiple Choice

Which structure in the lungs is also known as the windpipe?

• Larynx

• Trachea

• Bronchioles

• Bronchi

Multiple Choice

Which structures in the lungs are the main branches from the trachea to the right and left lung?

• Right and left bronchi

• Right and left bronchioles

• Pharynx and larynx

• Alveoli and capillaries

Multiple Choice

What is the name of the air sacs in the lungs where gaseous exchange occurs?

• Alveoli

• Bronchioles

• Bronchi

• Atria

Multiple Choice

Where will oxygen diffuse to during the process of gaseous exchange in the lungs?

• Alveoli

• Capillaries

• Bronchioles

• Heart

Multiple Choice

Where will carbon dioxide diffuse to during the process of gaseous exchange in the lungs?

• Alveoli

• Venules

• Pulmonary artery

• Arterioles

Multiple Choice

Where is the heart positioned?

• Posterior to the sternum and just left of centre

• Posterior to the sternum and just right of centre

• Anterior to the sternum and just left of centre

• Anterior to the sternum and just right of centre

Multiple Choice

Which of the following is a function of the heart?

• Pump nutrients and oxygen to the body tissues

• Protect the internal organs

• Pump deoxygenated blood to the body tissues

• Produce red blood cells

Multiple Choice

How many chambers are there in the heart?

• Two

• Four

• Six

• Eight

Multiple Choice

Which chamber of the heart receives oxygenated blood from the lungs?

• Left ventricle

• Right ventricle

• Right atrium

• Left atrium

Multiple Choice

Where does blood flow to after leaving the right atrium?

• Right ventricle

• Aorta

• Left atrium

• Vena cava

Multiple Choice

Which chamber of the heart has the most muscular walls?

• Right atrium

• Left atrium

• Left ventricle

• Right ventricle

Multiple Choice

Which blood vessel has the thickest wall to withstand high pressure?

• Aorta

• Pulmonary artery

• Vena cava

• Pulmonary vein

Multiple Choice

Which blood vessel has the thickest wall to withstand high pressure?

• Aorta

• Pulmonary artery

• Vena cava

• Pulmonary vein

Multiple Choice

Which blood vessels carry blood under low pressure?

• Arteries

• Veins

• Aorta

• Capillaries

Multiple Choice

Which blood vessel(s) carry deoxygenated blood from the body to the heart?

• Pulmonary veins

• Pulmonary arteries

• Aorta

• Vena cava

Multiple Choice

What is the name of the smallest blood vessels?

• Venules

• Arteries

• Arterioles

• Capillaries

Multiple Choice

What can be described as the measure of force applied to the artery walls as blood flows through?

• Blood pressure

• Cardiac output

• Stroke volume

• Blood dilation

Multiple Choice

What is the term used to define low blood pressure?

• Hypotension

• Hypertension

• Hypoglycaemia

• Hyperglycaemia

Multiple Choice

Which reading represents optimal systolic blood pressure?

• 80 mmHg

• 90 mmHg

• 120 mmHg

• 140 mmHg

Multiple Choice

Which reading represents optimal diastolic blood pressure?

• 80 mmHg

• 95 mmHg

• 125 mmHg

• 140 mmHg