Q. No.What masks the active sites for myosin head present on the actin myofilaments?
1. Light meromyosin
2. Heavy meromyosin
3. G – actin
4. Troponin
1. Light meromyosin
2. Heavy meromyosin
3. G – actin
4. Troponin
The depression on the coxa where the head of the femur articulates is the
1. acetabulum.
2. auricular surface.
3. iliac fossa.
4. ischial tuberosity.
Cardiac muscles can be best defined as:
| 1. | Many cardiac muscle cells assemble in a branching pattern. |
| 2. | Single cardiac muscle fibre enclosed by connective tissue layer. |
| 3. | Group of multinucleated muscle fibres enclosed by connective tissue layer. |
| 4. | Group of unstriated muscle fibres enclosed by endocardium. |
Which of the following is required for the breaking of cross-bridge during muscle contraction?
1. ATP and Ca++
2. ADP and Ca++
3. Only Ca++
4. ATP only
Identify the incorrectly matched pair:
| Disease | Cause | |
| 1. | Myasthenia gravis | Antibodies against neuromuscular junction |
| 2. | Tetany | Hypocalcemia |
| 3. | Osteoporosis | Hypoparathyroidism |
| 4. | Gout | Accumulation of uric acid crystals |
Consider the characters of a particular type of joint:
| I. | It is a type of synovial joint |
| II. | It enables the bone to move in a 360° angle. |
| III. | It is exemplified by joint between humerus and pectoral girdle |
What is this type of joint called?
1. Hinge
2. Ball and socket
3. Pivot
4. Saddle
Arthritis is
(1) Inflammation of joints
(2) Inflammation of forelimbs
(3) Inflammation of muscles
(4) Inflammation of ligaments
Which of the following is not a disorder of muscular and skeletal system?
(1) Gout
(2) Myasthenia gravis
(3) Tetany
(4) Fibrosis
Which of the following is wrong?
(1) Force generated by muscle is used to carry out movement through joints
(2) The movability of joints vary depending on different factors
(3) Joints have been classified into three major functional forms, namely, fibrous, cartilaginous and synovial.
(4) Both 2 and 3
Knee cap is not
(1) Known as patella
(2) Covers knee ventrally
(3) Cup shaped
(4) One patella in human body
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