Experiments
Here are experiments our science specialists have selected to support the IB* topic.
Simple Neuromuscular Reflexes
Experiment #4 from Human Physiology Experiments
- Graph the electrical activity of a muscle activated by a reflex arc through nerves to and from the spinal cord.
- Compare the relative speeds of voluntary and reflex muscle activation.
- Associate muscle activity with involuntary activation.
- Observe the effect of central nervous system influence on reflex amplitude.
- Calculate the approximate speed of a nerve impulse.
- Compare reflex response and electrical amplitude in different subjects.
Diving Reflex
Experiment #6 from Human Physiology Experiments: Volume 2
- Obtain graphical representation of heart rate and respiration effort over a period of time.
- Measure the heart-rate before and during normal breath hold.
- Measure the heart-rate before and during a simulated dive in cold water.
- Measure the heart-rate before and during a normal breath hold when a foot is placed in ice water.
- Educational Standard
- International Baccalaureate (IB)
- Subject
- Biology
- Section
- Options
- Topic
- A. Neurobiology and behaviour
* The IB Diploma Program is an official program of the International Baccalaureate Organization (IBO) which authorizes schools to offer it. The material available here has been developed independently of the IBO and is not endorsed by it.