BHK Trivia 3

Question 1

Which neurotransmitter is released at the neuromuscular junction to initiate skeletal muscle contraction?

Accepted Answer

Acetylcholine

Answer

Acetylcholine is released from motor neuron terminals and binds to nicotinic receptors on the muscle fiber to trigger depolarization.

Question 2

The 'Wingate Anaerobic Test' is typically performed on what type of equipment?

Accepted Answer

Cycle ergometer

Answer

The Wingate test is a 30-second all-out sprint on a cycle ergometer used to measure anaerobic peak power and capacity.

Question 3

What is the approximate resting heart rate range associated with high aerobic fitness in elite endurance athletes?

Accepted Answer

28-40 bpm

Answer

Elite endurance athletes often have resting heart rates as low as 28-40 bpm due to enhanced parasympathetic tone and increased stroke volume.

Question 4

The concept of 'muscle memory' in skill learning is neurologically attributed to adaptations in which brain structure?

Accepted Answer

Cerebellum

Answer

The cerebellum plays a central role in motor learning and the automatization of skilled movements through procedural memory.

Question 5

What is the primary fuel source used during high-intensity exercise lasting 10-30 seconds?

Accepted Answer

Phosphocreatine (PCr)

Answer

The phosphagen system, using ATP and phosphocreatine, is the dominant energy source for maximal efforts lasting up to about 30 seconds.

BHK - Bachelor of Kinesiology Practice Test