LOCOMOTION AND MOVEMENT NEET MCQ

Q61.Name the ion responsible for unmasking of active sites for myosin for cross-bridge activity during muscle contraction.  

(1) Calcium 

(3) Sodium 

(2) Magnesium 

(4) Potassium 

Ans.1

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Q62.Osteoporosis, an age-related disease of skeletal system, may occur due to 

(1) Immune disorder affecting neuromuscular junction leads to fatigue 

(2) High concentration of Ca++ and Nat 

(3) Decreased level of estrogen 

(4) Accumulation of uric acid leads to inflammation of joints 

Ans.3

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Q63.Lack of relaxation between successive stimuli in sustained muscle contraction is known as 

(1) Tonus 

(2) Spasm 

(3) Fatigue 

(4) Tetanus 

Ans.4

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Q64.Which of the following is not a function of the skeletal system? 

(1) Locomotion  

(2) Production of erythrocytes 

(3) Storage of minerals 

(4) Production of body heat 

Ans.4

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Q65.Which of the following joints would allow no movement?  

(1) Ball and Socket joint 

(2) Fibrous joint 

(3) Cartilaginous joint   

(4) Synovial joint

Ans.2

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Q66.Sliding filament theory can be best explained as 

(1) When myofilaments slide pass each other. Myosin filaments shorten while Actin filaments do not shorten 

(2) When myofilaments slide pass each other Actin filaments shorten, while Myosin filament do not shorten 

(3) Actin and Myosin filaments shorten and slide pass each other 

(4) Actin and Myosin filaments do not shorten but rather slide pass each other 

Ans.4

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Q67.Glenoid cavity articulates  

(1)Humerus with scapula 

(2) Clavicle with acromion 

(3) Scapula with acromion 

(4) Clavicle with scapula 

Ans.1

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Q68.Bone formed by the ossification of tendon is called Sesamoid 

(1) Sesamoid

(2) Investing or dermal bone 

(3) Cartilage or replacing bone 

(4) Membranous

Ans.1

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Q69.Stimulation of a muscle fibre by a motor neuron occurs at 

(1) The neuromuscular junction 

(2) The transverse tubules 

(3) The myofibri 

(4) The sarcoplasmic reticulum 

Ans.2

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Q70.One of the following is called hip bone

(1) Innominate 

(2) Manubrium 

(3) Scapula 

(4) Coracoid

Ans.1

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