Sports, Exercise and Health Science · A.1 Communication

SEA.1.3 — Transport

Sports, Exercise and Health Science · SL / HL · syllabus-mapped notes

1. SEA.1.3.1

   The cardiovascular system

   The cardiovascular system transports nutrients, hormones, gases, heat and waste to perform necessary bodily functions.

2. SEA.1.3.1.1

   The five cardiovascular variables

   Heart rate, stroke volume, cardiac output, blood pressure and blood redistribution vary, and depend on factors such as age, sex differences, body size, level of fitness, type of activity and intensity of activity.

3. SEA.1.3.2

   The respiratory system

   The respiratory system enables the exchange of gases between the external environment and the body, to facilitate cellular respiration.

4. SEA.1.3.2.1

   Mechanics of breathing and ventilation

   The mechanics of breathing enable gaseous exchange to support health and performance. Minute ventilation, tidal volume and change in respiration rate can vary, and depend on factors such as age, sex differences, body size, level of fitness, type of activity and intensity of activity.