Structure of Skeletal Muscle

Q.

A sheet or broad band of fibrous connective tissues which is deep in the skin and surrounds muscles and other organs of the body are

1. Fascicle

2. Epimysium

3. Fascia

4. Endomysium

Q. Epimysium is the sheath that covers the

1. muscle
2. muscle fibre
3. fascicle
4. none of the above

Q. Which of the following are parts of a fascicle ?

1. Perimysium
2. Endomysium
3. Both a and b
4. Epimysium

Q. Read the statements A and B w.r.t. sarcomere and select the correct option.
$\text{Statement-A:}$ A-band consists of only myosin filaments.
$\text{Statement-B:}$ Actin filaments have rough surface due to presence of cross bridges.

1. Both statements A and B are incorrect
2. Only statement B is correct
3. Only statement A is correct
4. Both statements A and B are correct

Q. In a muscle fibre, Ca ${}^{++}$ is stored in

Q. Which of the following statements are true about fascicles?
I. They are held together by fascia
II. It contains a number of muscle fibres
III. Sarcolemma is the store house of calcium ions
IV. Sarcoplasm contains myofibrils

1. II, IV
2. I, III, IV
3. I, II, IV
4. I, IV

Q. Match the following:

$\begin{array}{cc}\text{A. Muscle covering}& \text{1. Endomysium}\\ \text{B. Muscle bundle}& \text{2. Epimysium}\\ \text{C. Muscle bundle covering}& \text{3. Fascicle}\\ \text{D. Muscle fibre covering}& \text{4. Perimysium}\end{array}$

1. A-1; B-2; C-3; D-4
2. A-2; B-3; C-4; D-1
3. A-3; B-4; C-1; D-2
4. A-4; B-1; C-2; D-3

Q. Match the separating membranes with the appropriate structures in a muscle.

1. Perimysium
2. Epimysium
3. Endomysium

Q. Which of the following muscles move the lower jaw, tongue and the head backward?

1. Abductor
2. Retractor
3. Proctor
4. All of the above