IB Biology SL 3.1.14 Control of heart rate Question Bank
Practise IB Biology SL 3.1.14 by explaining how neural and hormonal signals regulate the heartbeat.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Explain how the medulla and autonomic nerves control heart rate.
- Describe how SAN signals coordinate contraction through the heart.
C3.1.14—Heart rate feedback control question 1
The diagram shows a cross section through an artery and a vein.
Outline two ways in which the human body can increase the heart rate during exercise.
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