Locomotion and movement NEET MCQ

 Locomotion and movement NEET MCQ 

Q33.A slightly elevated ridge called, 'spine' which terminates as a flat 'acromian process' is present on 

(1) Ventral surface of scapula 

(2) Dorsal surface of scapula 

(3) Lateral surface of pubis 

(4) Centrum of thoracic vertebrae 

Ans.2

-----------------------------------

Q34.The central part of thick filament, not overlapped by thin filaments when a muscle is in relaxed state is is called 

(1) A-zone 

(2) I-zone 

(3) H-zone 

(4) O-zone 

Ans.3

--------------------------------------

Q35.Which of the following ion is essential for muscle contraction? 

(1) Na 

(2) K 

(3) Ca 

(4) CI 

Ans.3

---------------------------------------

Q36. Each arm of human is made of 

(1) 30 bones 

(2) 20 bones 

(3) 60 bones 

(4) 15 bones 

Ans.1

--------------------------------------

Q37.Which of following is not an example of synovial joint? 

(1) Joint between humerus and pectoral girdle 

(2) Joint between atlas and axis 

(3) Joint between adjacent vertebrae 

(4)  Knee joint 

Ans.3

-----------------------------------------

Q38.Rapid spasms (wild contractions) in muscle due to low Ca in body fluid 

(1) Myasthenia gravis 

(2) Muscular dystrophy

(3)  Tetany 

(4) Arthritis 

Ans.3

----------------------------------------------

Q39.Arrange the following steps in a sequence occurring during muscle contraction 

(a) Release of calcium ion into sarcoplasm

(b) Binding of calcium with a subunit of troponin on actin filaments 

(c) Neural signal reaching neuromuscular junction releases acetylcholine 

(d) Action potential generated in sarcolemma of muscle fibre 

(e) Myosin head binds to exposed active sites on actin to form cross bridge 

(1) (a), (b), (c), (d), (e)

(2) (c), (d), (a), (b), (e) 

(3) (c), (a), (b), (d), (e)

(4) (b), (d), (c), (a), (e)

Ans.2

-----------------------------------------

Q40.Number of lumbar vertebrae in human skeleton is 

(1) 12 

(2) 7 

(3) 5 

(4) 2 

Ans.3

-------------------------------------------

Q41.The portion of the myofibril between two successive 'Z' lines is called 

(1) Sarcoplasm 

(2) Sarcolemma 

(3) Sarcomere 

(4) Sarcosome 

Ans.3

-----------------------------------------

Q42.Which type of joint is seen between carpals? 

(1) Saddle joint 

(2) Gliding joint 

(3) Ball & socket joint 

(4) Pivot joint 

Ans.2

------------------------------------------

Q43.Patella, the knee cap bone 

(1) Sesamoid bone 

(2) Replacing bone 

(3) Investing bone 

(4) Endochondral bone 

Ans.1

-----------------------------------------

Q44.What amount of lactic acid is converted into glycogen during Cori's cycle? 

(1) 1/5th 

(2) 3/5th 

(3) 4/5th 

(4) 2/5 th

Ans.3

------------------------------------

Q45.Which of the following bone of the skull has a cavity to lodge pituitary gland in it? 

(1) Ethmoid 

(2) Sphenoid 

(3) Occipital 

(4) Parietal 

Ans.2

----------------------------------

Q46.Each muscle fibre is surrounded by connective tissue sheath called 

(1) Endomysium 

(2) Perimysium 

(3) Epimysium 

(4) Fascia 

Ans.1

---------------------------------

Q47.Which of the following statement is not true regarding A-band? 

(1) Middle part contains M-line 

(2) Length remains constant during the muscle contraction 

(3) Includes H-zone and M-line 

(4) Has thick filaments only 

Ans.4

----------------------------------

Q48.Which of the following muscle disorder occurs due to formation of defective antibodies? 

(1) Osteoarthritis 

(2) Myasthenia gravis 

(3) Muscular dystrophy 

(4) Hypertrophy 

Ans.2