Locomotion and Movement PYQ

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. C. Increased $\mathrm{Ca}^{++}$level leads to the binding of calcium with troponin on action filaments. D. Masking of active site for actin is activated. E. Utilising the energy from ATP hydrolysis to form cross bridge. Choose the most appropriate answer from the options given below:

Match List-I with List-II: $\begin{array}{|l|l|r|l|}\hline & \begin{array}{l} \text{List I} \\ \text{Location of Joint} \end{array} & & \begin{array}{l} \text{List II} \\ \text{Type of Joint} \end{array} \\ \hline A. & \begin{array}{l} \text{Joint between humerus and} \\ \text{pectoral girdle} \end{array} & I. & \text{Gliding joint} \\ \hline B. & \text{Knee joint} & II. & \text{Ball and Socket joint} \\ \hline C. & \text{Joint between atlas and axis} & III. & \text{Hinge joint} \\ \hline D & \text{Joint between carpals} & IV. & \text{Pivot joint} \\ \hline \end{array}$ Chose the correct answer from the option given below:

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

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

Which of the following statements are correct regarding the skeletal muscle? A. Muscle bundles are held together by collagenous tissue layer called fascicle. B. Sarcoplasmic reticulum of muscle fibre is a store house of calcium ions. C. Striated appearance of skeletal muscle fibre is due to distribution pattern of actin and myosin proteins. D. M line is considered as functional unit of contraction called sarcomere. Choose the most appropriate answer from the options given below:

Match List I with List II: <table class="pyq-table"><tbody><tr><td>List I</td><td>List II</td></tr><tr><td>A. Cartilaginous Joint</td><td>I. Between flat skull bones</td></tr><tr><td>B.Ball and Socket Joint</td><td>II. Between adjacent vertebrae in vertebral column</td></tr><tr><td>C. Fibrous Joint</td><td>III. Between carpal and metacarpal of thumb</td></tr><tr><td>D. Saddle Joint</td><td>IV. Between Humerus and Pectoral girdle</td></tr></tbody></table>Choose the correct answer from the options given below:

Which of the following is present between the adjacent bones of the vertebral column?

Which of the following is a correct match for disease and its symptoms?

According to the sliding filament theory:

Given below are two statements: one is labelled as Assertion and the other is labelled as Reason. Assertion: Osteoporosis is characterised by decreased bone mass and increased chances of fractures. Reason: Common cause of osteoporosis is increased levels of estrogen. In the light of the above statements, choose the most appropriate answer from the options given below:

Gout is a type of disorder which leads to:

Match List$-I$ with List$-\mathrm{II}$. <table class="pyq-table"><tbody><tr><td colspan="2" rowspan="1">List$-I$</td><td colspan="2" rowspan="1">List$-\mathrm{II}$</td></tr><tr><td>(a)</td><td>Scapula</td><td>(i)</td><td>Cartilaginous joints</td></tr><tr><td>(b)</td><td>Cranium</td><td>(ii)</td><td>Flat bone</td></tr><tr><td>(c)</td><td>Sternum</td><td>(iii)</td><td>Fibrous joints</td></tr><tr><td>(d)</td><td>Vertebral column</td><td>(iv)</td><td>Triangular flat bone</td></tr></tbody></table>

During muscular contraction which of the following events occur? (a) 'H' zone disappears (b) 'A' band widens (c) 'I' band reduces in width (d) Myosin hydrolyzes ATP, releasing the ADP and Pi (e) Z-lines attached to actins are pulled inwards Choose the correct answer from the options given below.

Match the following columns and select the correct option. <table class="pyq-table"><tbody><tr><td></td><td>Column-I</td><td></td><td>Column-II</td></tr><tr><td>(a)</td><td>Floating Ribs</td><td>(i)</td><td>Located between second and seventh ribs</td></tr><tr><td>(b)</td><td>Acromion</td><td>(ii)</td><td>Head of the Humerus</td></tr><tr><td>(c)</td><td>Scapula</td><td>(iii)</td><td>Clavicle</td></tr><tr><td>(d)</td><td>Glenoid cavity</td><td>(iv)</td><td>Do not connect with the sternum</td></tr></tbody></table>

Match the following columns and select the correct option:- <table class="pyq-table"><tbody><tr><td colspan="2" rowspan="1">Column-I</td><td colspan="2" rowspan="1">Column-II</td></tr><tr><td>(a)</td><td>Gout</td><td>(i)</td><td>Decreased levels of estrogen</td></tr><tr><td>(b)</td><td>Osteoporosis</td><td>(ii)</td><td>Low ${\mathrm{Ca}}^{++}$ ions in the blood</td></tr><tr><td>(c)</td><td>Tetany</td><td>(iii)</td><td>Accumulation of uric acid crystals</td></tr><tr><td>(d)</td><td>Muscular dystrophy</td><td>(iv)</td><td>Autoimmune disorder</td></tr><tr><td></td><td></td><td>(v)</td><td>Genetic disorder</td></tr></tbody></table>

Select the correct option.

Match the following joints with the bones involved  Select the correct option from the following

Calcium important in skeletal muscle contraction because

The pivot joint between atlas and axis is a type of

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:

Osteoporosis, an age-related disease of the skeletal system, may occur due to

Name the ion responsible for the unmasking of active sites for myosin for cross-bridge activity during muscle contraction.

Sliding filament theory can be best explained as:

Which of the following is not a function of the skeletal system?