These interactive flashcards help IB Sports, exercise and health science (SEHS - Old) students Standard Level (SL) and Higher Level (HL) quickly review and memorize the essential definitions, formulas, and terms needed for success in IB Exams. Each card focuses on A.1.3 Transport and is aligned with the IB Sports, exercise and health science (SEHS - Old) syllabus, ensuring focused revision on core principles, advanced applications, and practical problem-solving. Students can test themselves anytime, anywhere, perfect for reinforcing tricky concepts, learning IB terminology, and committing formulas to memory. By using RevisionDojo's flashcards consistently, learners turn repetition into mastery and enter the exam with confidence.
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What is the role of the cardiovascular system during exercise?
To deliver oxygen and nutrients to muscles and remove waste products.
What is the role of the cardiovascular system during exercise?
To deliver oxygen and nutrients to muscles and remove waste products.
Define heart rate (HR).
The number of times the heart beats per minute (bpm).
What is the typical resting heart rate for adults?
60–100 bpm.
What is stroke volume (SV)?
The amount of blood the heart ejects with each beat.
What is the average resting stroke volume in an adult?
Approximately 70 mL/beat.
What does cardiac output (Q) measure?
The total volume of blood the heart pumps per minute.
What is the formula for calculating cardiac output?
.
What is the average cardiac output at rest?
Around 5 liters per minute.
What can cardiac output rise to during intense exercise in elite athletes?
20–40 liters per minute.
What is blood pressure (BP)?
The force blood exerts on the walls of blood vessels.
What does BP express?
Systolic pressure over diastolic pressure.
What happens to blood pressure during exercise?
Systolic pressure increases to facilitate greater blood flow to muscles.
What is vascular shunting?
The redirection of blood flow from non-essential areas to working muscles during exercise.
What is the role of the respiratory system?
To deliver oxygen to the body and remove carbon dioxide.
What is tidal volume (TV)?
The amount of air inhaled or exhaled in a single breath.
What is the average resting tidal volume?
Around 0.5 liters per breath.
What is the respiratory rate (RR)?
The number of breaths taken per minute.
What is the typical resting respiratory rate for adults?
12–20 breaths per minute.
How do heart rate and respiratory rate change during low-intensity activity?
They increase slightly to meet moderate oxygen demands.
How do heart rate and respiratory rate change during high-intensity activity?
They increase dramatically.
What happens to blood flow during high-intensity activity?
Blood is redirected to working muscles.
What is the average resting blood pressure in healthy adults?
Around 120/80 mmHg.
What are the primary components of the respiratory system?
The lungs, airways, and diaphragm.
What is the function of the diaphragm in respiration?
It contracts and relaxes to facilitate breathing.
How does the body maximize oxygen delivery during exercise?
By increasing cardiac output and redirecting blood flow to muscles.