Tag: structure of skeletal muscle

Questions Related to structure of skeletal muscle

Biceps muscle is found on

zoology movement and locomotion in man structure of skeletal muscle muscles and their structure skeletal muscles

  1. Radius

  2. Femur

  3. Ulna

  4. Scapula

Show answer
Correct Option: A
Explanation:

Bicep muscles are present at front of our upper arm. It contains two tendons that help it to attach it from the bones of the shoulder and other one is attached to the radius bone of the elbow.

So the correct option is "Radius".
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State whether the following statements are true or false.
Intercalated discs make up striations in the skeletal muscle.

zoology movement and locomotion in man structure of skeletal muscle muscles and their structure skeletal muscles

  1. True

  2. False

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Correct Option: B
Explanation:

Intercalated discs support synchronized contraction of cardiac tissues. They occur at the Z line of the sarcomere and can be visualized easily when observing a longitudinal section of the tissue. Three types of cell junction make up an intercalated disc.

So, the option is 'False'.

Which muscles having functionally multinucleated conditions?

zoology movement and locomotion in man structure of skeletal muscle muscles and their structure skeletal muscles

  1. Cardiac muscle

  2. Smooth muscle

  3. Voluntary muscle

  4. All of these

Show answer
Correct Option: C
Explanation:

There are cardiac, skeletal and smooth muscle cells of which only skeletal or voluntary muscle cells are multinucleated. Such cells are syncytial. Skeletal muscle cells arise in the embryo as uninucleated entities. Later the cells fuse to give rise to the multinucleated muscle fibre.

So the correct answer should be option C "voluntary muscles".

Consider the following statements each with one or two blanks.
(i) Each half of pectoral girdle consists of a (A) and a (B) 
(ii) (C) is a condition of rapid spasms (wild contractions) in muscle due to low $Ca^{++}$ in body fluid.
(iii) Each organised skeletal muscle In our body is made of a number of (D) held together by a common collagenous connective tissue layer called (E) Which one of the following options correctly fills the blanks in any two of the statements ?

zoology movement and locomotion in man structure of skeletal muscle muscles and their structure skeletal muscles

  1. (C) - Muscular dystrophy, (D) - fascia, (E) - fascicle

  2. (A) - clavicle, (B) - scapula, (C) - Tetany

  3. (A) - ilium, (B) - ischium, (D) - fascicles, (E) - fascia

  4. (C) - Myasthenia gravis, (D) - fascicles. (E) - fasda

Show answer
Correct Option: B
Explanation:

Each half of pectoral and pelvic girdle consist of clavicle & scapula, tetany is a condition of rapid spasms in muscle due to low calcium ion in body fluid.

So, the correct option is '(A) - clavicle, (B) - scapula, (C) - Tetany'.