1.Select the correct statement regarding the specific disorder of muscular or skeletal system :-- (1)Myasthenia gravis-Auto immune disorder which inhibits sliding of myosin filaments
- (2)Gout inflammation of joints due to extra deposition of calcium
- (3)Muscular dystrophy - age related shortening of muscles
- (4)Osteoporosis-decrease in bone mass and higher chances of fractures with advancing age
2.Which one of the following pairs of chemical substances is correctly categorized?- (1)Pepsin and prolactin - Two digestive enzymes secreted in stomach
- (2)Troponin and myosin - Complex proteins in striated muscles
- (3)Secretin and rhodopsin - Polypeptide hormones
- (4)Calcitonin and thymosin - Thyroid hormones
3.Osteoporosis, an age–related disease of skeletal system, may occur due to :-- (1)Decreased level of estrogen
- (2)Accumulation of uric acid leading to inflammation of joints.
- (3)Immune disorder affecting neuro– muscular junction leading to fatigue.
- (4)High concentration of Ca++ and Na+.
4.Name the ion responsible for unmasking of active sites for myosin for cross-bridge activity during muscle contraction.- (1)Magnesium
- (2)Sodium
- (3)Potassium
- (4)Calcium
5.Three of the following pairs of human skeletal parts are correctly matched with their respective inclusive skeletal category and one pair is not matched. Identify the nonmatching pair Pair of skeletal parts Category- (1)Malleus and stapes Ear ossicles
- (2)Sternum and ribs Axial skeleton
- (3)Clavicle and glenoid Pelvic girdle cavity
- (4)Humerus and ulna Appendicular skeleton
6.Which one of the following is the correct description of a certain part of a normal human skeleton?- (1)Parietal bone and the temporal bone of the skull are joined by fibrous joint.
- (2)First vertebra is axis which articulates with the occipital condyles.
- (3)The 9th and 10th pairs of ribs are called the floating ribs.
- (4)Glenoid cavity is a depression to which the thigh bone articulates.
7.Select the correct matching of the type of the joint with the example in human skeletal system.
Type of joint Example- (1)Cartilaginous joint
Between frontal and pariental - (2)Pivot joint
Between third and fourth cervical vertebrae - (3)Hinge joint
Between humerus and pectoral girdle - (4)Gliding joint
Between carpals
8.Which of the following joints would hallow no movement?- (1)Cartilaginous joint
- (2)Synovial joint
- (3)Ball and socket joint
- (4)Fibrous joint
9.Ribs are called bicephalic because it has two articulation surfaces on its- (1)Dorsal end
- (2)Ventral end
- (3)Lateral end
- (4)Ventrolateral end
10.Which of the following is not a function of the skeletal system?- (1)Storage of minerals
- (2)Production of body heat
- (3)Locomotion
- (4)Production of erythrocytes
11.Select the correct matching of the type of the joint with the example in human skeletal system :
Type of joint Example- (1)Cartilaginous joint
between frontal and parietal - (2)Pivot joint
between third and fourth cervical vertebrae - (3)Hinge joint
between humerus and pectoral girdle - (4)Gliding joint
between carpals
12.Select the correct statement regarding the specific disorder of muscular or skeletal system.- (1)Muscular dystrophy - Age related shortening of muscles.
- (2)Osteporosis - Decrease in bone mass and higher chances of fractures with advancing age.
- (3)Myasthenia gravis - Auto immune disorder which inhibits sliding of myosin filaments.
- (4)Gout - Inflammation of joints due to extra deposition of calcium.
13.The characteristics and an example of a synovial joint in humans is
Characteristics Examples- (1)Fluid cartilage between two bones, limited movements
Knee joint - (2)Fluid filled between two joints, provides cushion
Skull bones - (3)Fluid filled synovial cavity between two bones
Joint between atlas and axis - (4)Lymph filled between two bones, limited movement
Gliding joint between Carpals
14.The H-zone in the skeletal muscles fibre is due to- (1)The absence of myofibrils in the central portion of A-band.
- (2)The central gap between myosin filaments in the A-band.
- (3)The central gap between actin filaments extending through myosin filaments in the A-band.
- (4)Extension of myosin filaments in the central portion of the A-band.
15.Out of (X) pairs of ribs in humans only (Y) pairs are true ribs. Select the option that correctly represents values of (X) and (Y) and provides their explanation:- (1)(X) = 12, (Y) = 5 True ribs are attached dorsally to vertebral column and sternum on the two ends
- (2)(X) = 24, (Y) = 7 True ribs are dorsally attached to vertebral column but are free on ventral side.
- (3)(X) = 24, (Y) = 12 True ribs are dorsally attached to vertebral column but are free on ventral side.
- (4)(X) = 12, (Y) = 7 True ribs are attached dorsally to vertebral column and ventrally to the sternum.
16.Select the correct statement with respect to locomotion in humans:- (1)The joint between adjacent vertebrae is a fibrous joint
- (2)A decreased level of progesterone causes osteoporosis in old people
- (3)Accumulation of uric acid crystals in joints causes their inflammation
- (4)The vertebral column has 10 thoracic vertebrae
17.The sliding filament theory can be best explained as- (1)When myofilaments slide pass each other actin filaments shorten while myosin filaments do not shorten.
- (2)Actin and myosin filaments shorten and slide pass each other.
- (3)Actin and myosin filaments do not shorten but rather slide pass each other.
- (4)When myofilaments slide pass each other, the myosin filaments shorten while actin filaments do not shorten.
18.The following pairs of the human skeletal parts are correctly matched with their respective inclusive skeletal category and one pair is not matched. Identify the non-matching pair. Pair of skeletal parts Category- (1)Sternum and ribs Axial skeleton
- (2)Clavicle and glenoid cavity Pelvic girdle
- (3)Humerus and ulna Appendicular
skeleton - (4)Malleus and stapes Ear ossicles
19.Stimulation of a muscle fibre by a motor neuron occurs at- (1)The neuromuscular junction
- (2)The transverse tubules
- (3)The myofibril
- (4)The sacroplasmic reticulum
20.Gout is a type of disorder which leads to:- (1)Inflammation of joints due to accumulation of uric acid crystals
- (2)Weakening of bones due to decreased bone mass
- (3)Inflammation of joints due to cartilage degeneration
- (4)Weakening of bones due to low calcium level
21.Which one of the following items gives its correct total number?- (1)Types of diabetes – 3
- (2)Cervical vertebrae in humans – 8
- (3)Floating ribs in humans – 4
- (4)Amino acids found in proteins – 16
22.Which of the following joints would allow no movement?- (1)Ball and Socket joint
- (2)Fibrous joint
- (3)Cartilaginous joint
- (4)Synovial joint
23.Which one of the following pairs of structures is correctly matched with their corrected description?
Structures Description (A) Tibia and fibula Both form parts of knee joint (B) Cartilage and cornea No blood supply but it does require oxygen for respiratory need (C) Shoulder joint and elbow joint Ball and socket type of joint (D) Premolars and molars 20 in all and 3 rooted- (1)(A)
- (2)(B)
- (3)(C)
- (4)(D)
24.Which of the following is a correct match for disease and its symptoms?- (1)Muscular dystrophy - An auto immune disorder causing progressive degeneration of skeletal muscle
- (2)Arthritis - Inflammed joints
- (3)Tetany - high Ca2+ level causing rapid spasms
- (4)Myasthenia gravis - Genetic disorder resulting in weakening and paralysis of skeletal muscle
25.The pivot joint between atlas and axis is a type of :- (1)Cartilaginous joint
- (2)Synovial joint
- (3)Saddle joint
- (4)Fibrous joint
26.Which of the following muscular disorder is inherited?- (1)Tetany
- (2)Muscular dystrophy
- (3)Myasthenia gravis
- (4)Botulism
27.Glenoid cavity articulates :-- (1)Scapula with acromion
- (2)Clavicle with scapula
- (3)Humerus with scapula
- (4)Clavicle with acromion
28.Glenoid cavity articulates- (1)Clavicle with acromion
- (2)Scapula with acromion
- (3)Clavicle with scapula
- (4)Humerus with scapula
29.Select the correct option .- (1)8th, 9th and 10th pairs of ribs articulate directly with the sternum.
- (2)11th and 12th pairs of ribs are connected to the sternum with the help of hyaline cartilage.
- (3)Each rib is a flat thin bone and all the ribs are connected dorsally to the thoracic vertebrae and ventrally to the sternum.
- (4)There are seven pairs of vertebrosternal, three pairs of vertebrochondral and two pairs of vertebral ribs.
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