Q1. Which of the following bones articulates with the humerus at the shoulder joint?A. ClavicleB. ScapulaC. SternumD. Radius
Q2. Which structural protein helps muscle fibers return to their resting length after contraction?A. TitinB. ActinC. MyosinD. Collagen
Q3. What is the major function of actin in muscle contraction?A. Acts as a neurotransmitterB. Provides energy for contractionC. Forms thin filaments that interact with myosinD. Stores calcium ions
Q4. Which of the following bones is a part of the appendicular skeleton?A. SternumB. FemurC. RibsD. Vertebrae
Q5. Which muscle is responsible for the movement of the diaphragm during respiration?A. Intercostal musclesB. Rectus abdominisC. Diaphragm muscleD. Oblique muscles
Q6. Which ion is necessary for the transmission of nerve impulses to muscles?A. PotassiumB. SodiumC. CalciumD. Magnesium
Q8. Which part of the skeletal system protects the spinal cord?A. CraniumB. Vertebral columnC. Rib cageD. Pelvic girdle
Q9. Which of the following is a characteristic feature of synovial joints?A. Presence of a fibrous capsuleB. Absence of a joint cavityC. Limited movementD. Direct fusion of bones
Q10. Which of the following bones is a part of the pectoral girdle?A. HumerusB. ScapulaC. FemurD. Tibia