Question 1. Which bone is primarily responsible for forming the posterior portion of the pelvis?
A) Ilium
B) Ischium
C) Pubis
D) Sacrum
Answer: B
Explanation: The ischium contributes to the posterior part of the pelvis and bears weight when sitting. It
forms part of the bony structure that supports the pelvis.
Question 2. Which type of joint classification best describes the elbow joint?
A) Ball-and-socket
B) Hinge
C) Pivot
D) Saddle
Answer: B
Explanation: The elbow is classified as a hinge joint, allowing flexion and extension primarily in one
plane.
Question 3. During concentric muscle contraction, the muscle:
A) Lengthens under tension
B) Maintains the same length
C) Shortens while generating force
D) Lengthens without force production
Answer: C
Explanation: Concentric contraction involves muscle shortening while producing force, such as lifting a
weight during a bicep curl.
Question 4. Which nervous system component is primarily responsible for transmitting sensory
information from the body to the central nervous system?
A) Sympathetic nervous system
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B) Parasympathetic nervous system
C) Afferent nerves
D) Efferent nerves
Answer: C
Explanation: Afferent nerves carry sensory information from receptors in the body to the central
nervous system.
Question 5. The primary function of hemoglobin in blood is to:
A) Fight infections
B) Clot blood
C) Transport oxygen
D) Regulate blood pressure
Answer: C
Explanation: Hemoglobin binds to oxygen in the lungs and transports it through the bloodstream to
tissues.
Question 6. Which hormone is primarily responsible for decreasing blood glucose levels after a meal?
A) Glucagon
B) Insulin
C) Cortisol
D) Adrenaline
Answer: B
Explanation: Insulin facilitates the uptake of glucose into cells, lowering blood glucose levels post-meal.
Question 7. Which lever class is characterized by the fulcrum being between the effort and load?
A) First-class
B) Second-class
C) Third-class
D) None of the above
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Answer: A
Explanation: In a first-class lever, the fulcrum is situated between effort and load, like in a seesaw.
Question 8. The sagittal plane divides the body into:
A) Front and back halves
B) Left and right halves
C) Top and bottom halves
D) Upper and lower limbs
Answer: B
Explanation: The sagittal plane splits the body into left and right sections.
Question 9. Which muscle group is primarily involved in shoulder abduction?
A) Pectorals
B) Latissimus dorsi
C) Deltoids
D) Trapezius
Answer: C
Explanation: The deltoid muscle, particularly the middle fibers, is the main muscle involved in shoulder
abduction.
Question 10. Type I muscle fibers are characterized by:
A) Fast contraction speed and high force
B) Slow contraction speed and high fatigue resistance
C) Rapid fatigue and anaerobic metabolism
D) Large size and glycolytic capacity
Answer: B
Explanation: Type I fibers are slow-twitch, highly resistant to fatigue, and primarily rely on aerobic
metabolism.
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Question 11. Which component of the nervous system is primarily responsible for voluntary muscle
control?
A) Central nervous system
B) Somatic nervous system
C) Autonomic nervous system
D) Sympathetic nervous system
Answer: B
Explanation: The somatic nervous system controls voluntary muscle movements.
Question 12. During exercise, the cardiorespiratory system responds by:
A) Decreasing heart rate and ventilation
B) Increasing blood flow to skeletal muscles
C) Reducing oxygen consumption
D) Increasing blood pressure without changing cardiac output
Answer: B
Explanation: During exercise, blood flow increases to skeletal muscles to meet oxygen and nutrient
demands.
Question 13. The primary function of cortisol during exercise is to:
A) Promote muscle hypertrophy
B) Increase blood glucose levels
C) Decrease inflammation
D) Stimulate fat storage
Answer: B
Explanation: Cortisol raises blood glucose levels by stimulating gluconeogenesis, especially during
prolonged or intense exercise.
Question 14. Which plane of motion involves movement around the anterior-posterior axis?
A) Sagittal
B) Frontal