BHK Trivia 2 — Questions and Answers
Question 1: Which scientist is credited with discovering that muscles contract via sliding filament theory?
- Andrew Huxley & Hugh Huxley (Correct answer)
- Archibald Hill
- Ivan Pavlov
- Charles Sherrington
Correct answer: Andrew Huxley & Hugh Huxley
Andrew Huxley and Hugh Huxley independently proposed the sliding filament theory of muscle contraction in 1954.
Question 2: What percentage of the human body's total weight is typically composed of skeletal muscle in a healthy adult male?
- 40-45% (Correct answer)
- 20-25%
- 55-60%
- 30-35%
Correct answer: 40-45%
Skeletal muscle accounts for approximately 40-45% of total body weight in a healthy adult male.
Question 3: The term 'kinesiology' is derived from the Greek word 'kinesis,' meaning what?
- Movement (Correct answer)
- Strength
- Balance
- Energy
Correct answer: Movement
Kinesiology comes from the Greek 'kinesis' (movement) and 'logos' (study), literally meaning the study of movement.
Question 4: Which organ system is primarily responsible for producing erythropoietin (EPO) that stimulates red blood cell production?
- Renal system (Correct answer)
- Hepatic system
- Endocrine pancreas
- Adrenal glands
Correct answer: Renal system
The kidneys produce approximately 90% of erythropoietin in response to low oxygen levels.
Question 5: Who is widely regarded as the 'father of physical education' in the United States?
- Dio Lewis
- Dudley Sargent
- Edward Hitchcock (Correct answer)
- Charles Beck
Correct answer: Edward Hitchcock
Edward Hitchcock is often credited as the father of physical education in the U.S. for his work at Amherst College beginning in 1861.
Question 6: What is the name of the connective tissue sheath that surrounds an entire skeletal muscle?
- Epimysium (Correct answer)
- Perimysium
- Endomysium
- Fascia lata
Correct answer: Epimysium
The epimysium is the outermost connective tissue layer that encases the entire skeletal muscle.
Question 7: During maximal aerobic exercise, cardiac output in a trained athlete can reach approximately how many liters per minute?
- 20-25 L/min
- 5-7 L/min
- 35-40 L/min (Correct answer)
- 10-15 L/min
Correct answer: 35-40 L/min
Elite endurance athletes can achieve cardiac outputs of 35-40 L/min during maximal exercise due to large stroke volumes.
BHK Trivia 2
Which scientist is credited with discovering that muscles contract via sliding filament theory?