blood vessels with a small lumen and thick muscular walls that carry blood away from the heart

blood vessels with a wide lumen and pocket valves that carry blood back towards the heart

thin (one cell thick) blood vessels that allow exchange of materials (oxygen, carbon dioxide and nutrients) between the blood and the tissues of the body

oxygen carrying cells containing haemoglobin

blood cells responsible for fighting infection

Blood vessels and blood cells

Physical education

Double circulatory system and structure of the heart

A practical exploration of the pathway of blood

The relationship between heart rate, stroke volume and cardiac output

Air pathway from the atmosphere to alveoli and gaseous exchange

The mechanics of breathing

A practical exploration of how the cardio-respiratory systems work together

This unit will examine the structure and function of both the cardiovascular and respiratory systems. It includes the correct anatomical names and location of different chambers, valves and blood vessels as well as the pathway of air through to the alveoli and how gaseous exchange occurs.

Anatomy and physiology: the cardio-respiratory system

Which of the following blood vessels carries blood away from the heart?

The only vein carrying oxygenated blood is the {{ }} vein.

Gaseous exchange occurs in the capillaries.

Blood is pumped at high pressure in veins.

Veins have pocket valves to prevent the backflow of blood.

Red blood cells carry {{ }} in the haemoglobin.

makes up the majority of the blood volume to help it flow

carry blood away from the heart at high pressure

enable gaseous exchange due to being one cell thick

Match up the following blood vessels and constituents of the blood with their main function.

Oxygen enters the bloodstream by binding to haemoglobin.

Blood travels back from the lungs to the heart in veins.

Blood is pumped out of the heart in arteries.

Gaseous exchange happens at capillaries for oxygen to enter the muscles.

Deoxygenated blood returns to the heart in veins.

Place the following sequence of events in the order they happen from air entering the lungs.

it has two circuits - one that supplies blood to the arms and one to the legs.

there are two loops - one to the lungs and one to the rest of the body.

it works in tandem with the respiratory system to circulate blood.

The heart operates as a double circulatory system. This means:

The {{ }} circuit transports blood to the body tissues to supply oxygen and delivers deoxygenated blood back to the heart.

Name the chamber identified in red in the image below.

carries oxygenated blood back from the lungs

situated between the right atrium and the right ventricle

receives deoxygenated blood from the body

pumps blood to the lungs to pick up fresh oxygen supplies

Match the following components of the circulatory system.

The {{ }} is the muscular wall in that divides the left and right sides of the heart.

Veins contain special pocket {{ }} to help prevent the backflow of blood.

Blood vessels and blood cells

Lesson outcome