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Q. No.Read the following statements:
i. Scapula is situated in the dorsal part of thorax between the second and the seventh ribs
ii. The striated appearance of a myofibril is due to the distribution pattern of sarcoplasmic reticulum
iii. Myosin possess oxygen storing capacity
iv. The central hollow portion of vertebra is called neural canal
v. I-band shortens during muscle contraction
How many of the above statements are incorrect?
1. Two
2. Three
3. Four
One
Subtopic: Skeletal Muscle: Myofilaments | Skeletal Muscle: Sarcomere | Appendicular Skeleton | Appendicular Skeleton: Girdle | Axial Skeleton |
51%
Level 3: 35%-60%
Hints
Find out the true (T)/ false (F) statements and choose the correct option.
I. The most abundant skeletal muscle protein is myosin
II. The length of A-band remains unchanged during muscle contraction.
III. Ileum is a part of pelvic girdle.
IV. The biggest muscle is Gluteus maximus in the buttock and the smallest is Stapedius in the middle ear
I. The most abundant skeletal muscle protein is myosin
II. The length of A-band remains unchanged during muscle contraction.
III. Ileum is a part of pelvic girdle.
IV. The biggest muscle is Gluteus maximus in the buttock and the smallest is Stapedius in the middle ear
| Options | I | II | III | IV |
| 1. | T | T | T | T |
| 2. | T | F | T | F |
| 3. | F | T | F | T |
| 4. | T | T | F | T |
Subtopic: Skeletal Muscle: Myofilaments | Skeletal Muscle: Sarcomere |
Level 3: 35%-60%
Hints
Striated muscles contract because of:
1. Sliding of actin filaments on myosin filaments
2. Sliding of myosin filaments on actin filaments
3. Actin filaments sliding over another actin filament
4. Fusion of myosin filaments
1. Sliding of actin filaments on myosin filaments
2. Sliding of myosin filaments on actin filaments
3. Actin filaments sliding over another actin filament
4. Fusion of myosin filaments
Subtopic: Sliding Filament Theory |
89%
Level 1: 80%+
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Find out the true (T)/false (F) statements and choose the correct option:
I. The phosphagen in the vertebrate muscle is arginine phosphate
II. The accumulation of phosphoenol pyruvic acid in muscles cause fatigue
III. Cori cycle occurs in liver and muscle
IV. ATP is synthesised in the muscle by the phosphorylation of ADP by a phosphagen
I. The phosphagen in the vertebrate muscle is arginine phosphate
II. The accumulation of phosphoenol pyruvic acid in muscles cause fatigue
III. Cori cycle occurs in liver and muscle
IV. ATP is synthesised in the muscle by the phosphorylation of ADP by a phosphagen
| Options | I | II | III | IV |
| 1. | T | T | F | F |
| 2. | F | F | T | T |
| 3. | T | F | T | F |
| 4. | F | T | F | F |
Subtopic: Muscle Contraction: Other Considerations |
62%
Level 2: 60%+
Hints
Which of the following is correct?
1. Blood supply is absent in smooth muscles
2. In cardiac muscle fibres, sarcoplasmic reticulum is poorly developed in comparison to skeletal muscle fibres
3. Both (1) and (2)
4. ATPase enzyme required for muscle contraction is located in myosin and actin
1. Blood supply is absent in smooth muscles
2. In cardiac muscle fibres, sarcoplasmic reticulum is poorly developed in comparison to skeletal muscle fibres
3. Both (1) and (2)
4. ATPase enzyme required for muscle contraction is located in myosin and actin
Subtopic: Introduction to Locomotion |
Level 3: 35%-60%
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Hints
Choose the wrong statement:
1. When muscle fibre is relaxed, passive transport of Ca2+ occurs from sarcoplasm into the sarcoplasmic reticulum
2. Hyoid bone do not articulate with other bones
3. Glenoid cavity is meant for providing articulation to the head of humerus
4. Acetabulum provides articulation to the head of femur
1. When muscle fibre is relaxed, passive transport of Ca2+ occurs from sarcoplasm into the sarcoplasmic reticulum
2. Hyoid bone do not articulate with other bones
3. Glenoid cavity is meant for providing articulation to the head of humerus
4. Acetabulum provides articulation to the head of femur
Subtopic: Energy for Muscle Contraction | Muscle Contraction: Other Considerations |
70%
Level 2: 60%+
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A motor neuron along with the muscle fibres connected to it constitutes a:
| 1. | Neuro-muscular junction |
| 2. | Motor end plate |
| 3. | Sarcomere |
| 4. | Motor unit |
Subtopic: Muscle Contraction: Other Considerations |
59%
Level 3: 35%-60%
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Identify the incorrectly matched pair:
| 1. | Myasthenia gravis | An auto-immune disorder affecting neuromuscular junction leading to fatigue, weakening and paralysis of skeletal muscle. |
| 2. | Muscular dystrophy | Progressive degeneration of skeletal muscle mostly due to a genetic disorder. |
| 3. | Tetany | Rapid spasms (wild contractions) in muscle due to high Ca2+ in body fluid. |
| 4. | Gout | Inflammation of joints due to accumulation of uric acid crystals. |
Subtopic: Disorders of Muscular and Skeletal System |
87%
Level 1: 80%+
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Match each item in Column I with one in Column II and select the correct match from the codes given:
Codes:
| Column I | Column II | ||
| A | Gliding joint | P | Base of thumb |
| B | Saddle joint | Q | Between atlas and axis |
| C | Pivot joint | R | Suture in skull |
| D | Fibrous joint | S | Between carpal bones |
| A | B | C | D | |
| 1. | P | Q | R | S |
| 2. | Q | R | S | P |
| 3. | R | S | P | Q |
| 4. | S | P | Q | R |
Subtopic: Fibrous & Catilaginous Joints | Synovial Joint |
93%
Level 1: 80%+
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During the contraction of skeletal muscle, the length of which of the following does not get reduced?
| 1. | A band | 2. | Sarcomere |
| 3. | H-zone | 4. | I band |
Subtopic: Sliding Filament Theory | Muscle Contraction: Other Considerations |
89%
Level 1: 80%+
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