Based on location how many types of muscles are reported?
1. Three, skeletal, visceral and cardiac
2. Two, smooth and skeletal
3. Four, skeletal, visceral, cardiac and Digestive system's muscles
4. Only one i.e., contractile muscles
Which of the following is not a feature of skeletal muscles?
1. Are associated with skeletal components of the body
2. Striped appearance
3. Voluntary control
4. Transportation of food through digestive tract
All the muscles have the following special
properties, except
(1) Excitability
(2) Extensibility
(3) Autorhythmicity
(4) Contractility
Which of the following is not a feature of Visceral muscles?
1. Located in visceral organs of the body like the alimentary canal
2. No striations and smooth in appearance
3. Involuntary muscles
4. Transportation of food through Digested tract and maintenance of body postures are Main functions of it.
Match each item in Column I with one item in Column II and chose your answer from the codes given below:
Column I |
Column II |
I. Smooth muscle II. Skeletal muscle III. Cardiac muscle |
1. Striated, voluntary 2. Non-Striated, involuntary 3. Striated, Involuntary |
Codes:
I II III
1. 1 2 3
2. 3 1 2
3. 2 1 3
4. 1 3 2
The type of muscles present in our:
1. | upper arms are smooth muscle fibres fusiform in shape |
2. | heart is involuntary and unstriated smooth muscles |
3. | intestine are striated and involuntary |
4. | thighs are striated and voluntary |
Skeletal muscle bundles [fascicles] are held together by a common connective tissue layer called:
1. Perimysium
2. Endomysium
3. Fascia
4. Aponeurosis
Myofibrils has not
(1) Alternate dark and light bands
(2) Striated appearance because of distribution pattern of two important proteins- Actin and Myosin
(3) Both A and B
(4) Sarcolemma
Cardiac muscles can be best defined as:
1. | Many cardiac muscle cells assemble in a branching pattern. |
2. | Single cardiac muscle fibre enclosed by connective tissue layer. |
3. | Group of multinucleated muscle fibres enclosed by connective tissue layer. |
4. | Group of unstriated muscle fibres enclosed by endocardium. |
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