Q: Match List-I with List-II: array |l|l|r|l| & array l List I \\ Location of Joint array & & array l List II \\ Type of Joint array \\ A. & array l Joint between humerus and \\ pectoral girdle array & I

array |l|l|l|l| & array l List I \\ Location of Joint array & & array l List II \\ Type of Joint array \\ A. & array l Joint between humerus and \\ pectoral girdle array & II. & Ball and Socket joint \\ B. & Knee joint & III. & Hinge joint \\ C. & Joint between atlas and axis & IV. & Pivot joint \\ D & Joint between carpals & I. & Gliding joint \\ array Thus, A-II, B-III, C-IV, D-I is the correct match.

Question 1

Which of the following represents the correct sequence of arrangement of bones in the lower limb of humans ?

Accepted Answer

The bones of the lower limb from proximal to distal (top to bottom) are arranged as follows: Femur (thigh bone) Patella (knee cap) Tibia and Fibula (lower leg bones) Tarsals (ankle bones) Metatarsals Phalanges. Thus, the correct sequence is Femur-patella-tibia-tarsal. Answer: Femur-patella-tibia-tarsal

Question 2

The number of vertebrae in a human is __________.

Accepted Answer

The vertebral column in an adult human consists of 26 serially arranged units called vertebrae. The distribution of vertebrae is as follows: Cervical vertebrae: 7 Thoracic vertebrae: 12 Lumbar vertebrae: 5 Sacral vertebra: 1 (fused from 5 bones) Coccygeal vertebra: 1 (fused from 4 bones) Total number of vertebrae = 7 + 12 + 5 + 1 + 1 = 26. Answer: 26

Question 3

Which of the following statements are correct with reference to human endoskeleton ? A. Human skull is monocondylic. B. The joint between any two adjoining vertebrae is a cartilaginous joint. C. In hu

Accepted Answer

Statement A is incorrect because the human skull is dicondylic, possessing two occipital condyles. Statement B is correct because the joints between adjacent vertebrae are cartilaginous joints, which permit limited movement. Statement C is correct because humans, like almost all mammals, have seven cervical vertebrae. Statement D is incorrect because all 12 pairs of ribs are bicephalic, meaning they have two articulation surfaces on their dorsal end. Statement E is correct because the occipital

Question 4

Choose the correct statements regarding muscle contraction. A. A motor neuron carries a signal sent by the Central Nervous System (CNS) to the sarcolemma of the muscle fibre. B. The neural signal gene

Accepted Answer

Statement A is correct: Muscle contraction is initiated by a signal sent by the Central Nervous System (CNS) via a motor neuron to the neuromuscular junction, which is the junction between a motor neuron and the sarcolemma of the muscle fibre. Statement B is correct: The neural signal releases a neurotransmitter (acetylcholine) which generates an action potential in the sarcolemma. This action potential spreads through the muscle fibre and causes the release of Ca ^ ++ ions into the sarcoplasm.

Question 5

Sperm motility is due to __________.

Accepted Answer

Sperm motility is facilitated by the tail, which is a flagellum. The lashing movement of the flagellum propels the sperm forward in the fluid medium of the female reproductive tract. Therefore, sperm motility is due to flagellar movement.

Question 6

Match List I with List II related to muscular/skeletal system : List I List II A. Tetany I. Inflammation of joints B. Arthritis II. Autoimmune disorder affecting neuromuscular junction C. Myasthenia g

Accepted Answer

Tetany is characterised by rapid spasms or wild contractions in muscles due to low Ca ^ ++ in body fluid. Thus, A matches with III. Arthritis is the inflammation of joints. Thus, B matches with I. Myasthenia gravis is an autoimmune disorder affecting the neuromuscular junction leading to fatigue, weakening, and paralysis of skeletal muscle. Thus, C matches with II. Muscular dystrophy is the progressive degeneration of skeletal muscle mostly due to genetic disorder. Thus, D matches with IV. The c

Question 7

Which of the following is the correct order of arrangement of vertebrate column from the head to toe ?

Accepted Answer

The vertebral column of humans is divided into different regions. From head to toe (superior to inferior), the arrangement is: Cervical vertebrae (7 in number) Thoracic vertebrae (12 in number) Lumbar vertebrae (5 in number) Sacrum (1 fused bone from 5 sacral vertebrae) Coccyx (1 fused bone from 4 coccygeal vertebrae) Thus, the correct order is cervical vertebra, thoracic vertebra, lumbar vertebra, sacrum. Answer: Cervical vertebra, thoracic vertebra, lumbar vertebra, sacrum

Question 8

Select the correct statements regarding mechanism of muscle contraction. A. It is initiated by a signal sent by CNS via sensory neuron. B. Neurotransmitter generates action potential in the sarcolemma

Accepted Answer

The correct answer is option (1) as muscle contraction is initiated by a signal sent by the CNS via a motor neuron. A neural signal reaching the neuromuscular junction releases a neurotransmitter (acetylcholine) which generates an action potential in the sarcolemma. This spreads through the muscle fibre and causes the release of Ca ^ 2 * into the sarcoplasm. Increase in Ca ^ 2+ level leads to the binding of calcium with a subunit of troponin on actin filaments and thereby remove the masking of a

Question 9

Match List I with List II : Choose the correct answer from the options given below :

Accepted Answer

The correct answer is option no. (3) as Fibrous joints do not allow any movement. This type of joint is shown by the flat skull bones which fuse end-to-end with the help of dense fibrous connective tissues in the form of sutures. Cartilaginous joint is present between the adjacent vertebrae in the vertebral column and this permits limited movements. Hinge joint is a type of synovial joint present in knee, help in locomotion Ball and socket joint is also a type of synovial joint present between h

Question 10

Match List-I with List-II: array |l|l|r|l| & array l List I \ Location of Joint array & & array l List II \ Type of Joint array \ A. & array l Joint between humerus and \ pectoral girdle array & I

Accepted Answer

array |l|l|l|l| & array l List I \ Location of Joint array & & array l List II \ Type of Joint array \ A. & array l Joint between humerus and \ pectoral girdle array & II. & Ball and Socket joint \ B. & Knee joint & III. & Hinge joint \ C. & Joint between atlas and axis & IV. & Pivot joint \ D & Joint between carpals & I. & Gliding joint \ array Thus, A-II, B-III, C-IV, D-I is the correct match.

Locomotion and Movement — Previous Year Questions & Solutions