Respiratory System: Structure
1. Connect the terms to their descriptions.
Bronchi
Trachea
Alveoli
Bronchioles
Air passes from bronchi into these. At the end of these are the alveoli.
Subdivide into numerous bronchioles similar to branches of a tree.
Tiny air sacs. Grape like structure with very thick cell walls and a dense network of capillaries surrounding them. Site for gas exchange
A 2-3cm wide tube which has walls that contain rings of stiff cartilage which ensure it is kept open. Lined with tiny hair-like structures called cilia which sweep any fluids and foreign particles out of the airway, keeping them from entering the lungs. Divide into 2 Bronchi.
2. Outline the processes involved during inhalation (i.e. when we breath air in).
Type your answer in the box then check your answer against the model answer.
The diaphragm contracts and moves down, intercostal muscles contract pulling rib cage up and out. This increases the volume in the lungs drawing air in. Air travels in from the atmosphere via the nose (and mouth during more intense exercise) and down the trachea (windpipe). It then enters the bronchi, then bronchioles before reaching the alveoli. This is then the site for gas exchange.
Cardiovascular System: Heart Structure
(1)
Cardiovascular System: Heart Function
(2)
Cardiovascular System: Functions of Cardiovascular System
(3)
Cardiovascular System: Blood Pressure
(4)
Cardiovascular System: The Vascular System
(5)
Respiratory System: Structure
(6)
Respiratory System: Function
(7)
Respiratory System: Breathing
(8)
Respiratory System: Lung Volumes
(9)
Introduction to short and long term effects of exercise
(10)
Short term cardiovascular responses to exercise
(11)
Short term respiratory responses to exercise
(12)
Short term muscular and skeletal responses to exercise
(13)
Introduction to long term adaptations to exercise
(14)
Long term cardiovascular adaptations to exercise
(15)
Long term respiratory adaptations to exercise
(16)
Long term muscular and skeletal adaptations to exercise
(17)