In the given four statements (a-d), select the options, which includes all the correct ones only:-
(a) | Fibula does not participate in knee joint formation. |
(b) | Tarsal bones are much larger and stronger than carpal bones because they have to support and distribute body weight. |
(c) | Scapula situated dorsally in thoracic region between 2nd and 7th rib. |
(d) | Two half of the pelvis girdle meet dorsally to form the pubic symphysis containing fibrous cartilage. |
1. Statement (a), (b), (c)
2. Statement (a), (c), (d)
3. Statement (b), (c), (d)
4. Statement (a), (b), (c), (d)
Cells of Human body exhibit which type of movement :-
1. Amoeboid
2. Muscular
3. Ciliary
4. All of the above
In the rest state, a subunit of Troponin masks
1. Active binding sites for actin on the myosin filaments
2. Active binding sites for myosin on the myosin filaments
3. Active binding sites for myosin on the actin filaments
4. Active binding sites for actin on the actin filaments
Match the columns:
Column I | Column II | ||
(a) | Myasthenia gravis | (i) | Wild contractions for prolonged period due to ↓ Ca++ in blood |
(b) | Tetany | (ii) | Affects neuromuscular junction and results in muscle paralysis |
(c) | Muscular dystrophy | (iii) | Increased uric acid levels in blood and joints |
(d) | Gout | (iv) | Degeneration of skeletal muscles |
Options: | (a) | (b) | (c) | (d) |
1. | (ii) | (i) | (iv) | (iii) |
2. | (i) | (ii) | (iii) | (iv) |
3. | (iii) | (iv) | (ii) | (i) |
4. | (iv) | (i) | (iii) | (ii) |
Complete the analogy with respect to joints Saddle joint: Between carpal and metacarpal of thumb: : Hinge joint:______
1. Between femur and acetabulum
2. Between femur and tibia
3. Between atlas and axis
4. Between occipital condyle and atlas
When a skeletal muscle contracts
1. H-zone increases in length
2. A band decreases in length
3. I-bands get reduced
4. H-zone remains unaffected
Arrange the following events involved in muscular contraction
(i) Action potential enters muscle fibre through T-tubules
(ii) Ca2+ binds with troponin-C
(iii) Actomyosin cross bridge formation
(iv) Sliding of thin myofilament along the thick myofilament
(v) Exposure of active sites on actin filaments
(vi) Release of Ca2+ from sarcoplasmic reticulum
1.
2.
3.
4.
In a healthy person, the red muscle fibres appear red due to stored
1. Carboxyhemoglobin
2. Carbaminohemoglobin
3. Myoglobin
4. Erythropoietin
Given below is a diagrammatic representation of
anatomy of a muscle fibre
Choose the correct option with respect to the labelled
structure
(1) 'A' consists of actin protein only
(2) 'B' consists of myosin protein only
(3) 'C' consists of actin and myosin protein only
(4) 'D' consists of myosin protein only
Passage of ova through the female reproductive tract is
facilitated mainly by
(1) Amoeboid movement
(2) Ciliary movement
(3) Muscular movement only
(4) pseudopodial movement