the process of breathing in air by expanding the lung volume

the process of breathing out air by reducing the lung volume

the volume of air breathed in or out during normal breathing

the maximum amount of air a person can exhale after a maximum inhalation

The mechanics of breathing

Physical education

Structure of the cardiovascular system

Blood vessels, blood cells and the vascular shunt

A practical exploration of the pathway of blood

The cardiac cycle

The relationship between heart rate, stroke volume and cardiac output

Air pathway from the atmosphere to alveoli and gaseous exchange

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 terms refers to breathing in?

the ribs move up and out while the diaphragm flattens down.

the ribs move down and in while the diaphragm flattens down.

the ribs move down and in while the diaphragm moves into a dome.

the ribs move up and out while the diaphragm moves into a dome.

additional air that can be forcefully inhaled after a normal breath in

additional air that can be exhaled after a normal exhalation

maximum amount of air a person can exhale after a maximum inhalation

the volume of air that remains in the lungs after maximal exhalation

the total volume of gas inhaled or exhaled by the lungs per minute

Match the following key terms with the correct description.

the intercostal muscles and diaphragm contract.

the ribs move up and out whilst diaphragm moves down and flattens.

air rushes into the lungs from the atmosphere.

Arrange these key processes in the correct order to represent what happens when we breathe in.

amount of air breathed in at rest per breath (i.e. tidal volume in ml)

volume of air breathed in at rest per minute (i.e. minute ventilation)

example of breathing rate whilst jogging in breaths per minute

volume of air breathed in during a jog (i.e. minute ventilation)

Match these typical lung volumes with what they are most likely to represent.

The process of switching oxygen for carbon dioxide is known as {{ }} exchange.

the windpipe that connects the larynx (voice box) to the bronchi

two main branches off the trachea that lead to the lungs

tiny air sacs in the lungs where gaseous exchange occurs

the movement of molecules from higher to lower concentration

gases moving from high to low partial pressure

air being forced out of the body by blowing hard

Which of the following does not describe the process of diffusion?

Arrange these body parts in the correct order of inhaled air starting at the atmosphere.

Gaseous exchange happens between the {{ }} and the bloodstream thanks to large capillary networks.

The mechanics of breathing

Lesson outcome