Cardiac Muscles

Q.

How many muscles are found in the human body?

Q. Cardiac muscle fibres are

1. striated and involuntary
2. striated and voluntary
3. non-striated and involuntary
4. non-striated and voluntary

Q. Match the following:

$\begin{array}{cccc}& \text{Tissue}& \text{Location}& \text{Function}\\ 1& \text{Fluid connective tissue}& \text{A. Heart}& \text{i. Secretion}\\ 2& \text{Cardiac muscle tissue}& \text{B. Blood}& \text{ii. Heart contraction}\\ 3& \text{Neural tissue}& \text{C. Salivary gland}& \text{iii. Circulation and transport of materials}\\ 4& \text{Glandular epithelium}& \text{D. Neuron}& \text{iv. Control over body response}\end{array}$

1. 1-A-i, 2-B-ii. 3-C-iii, 4-D-iv
2. 1-B-i, 2-C-ii. 3-B-iii, 4-A-iv
3. 1-B-iii, 2-A-ii. 3-D-iv, 4-C-i
4. 1-D-i, 2-C-ii. 3-A-iii, 4-D-iv

Q.

Voluntary muscles are present in the internal organs of the body.

1. True
2. False

Q.

The muscle which works throughout life without undergoing fatigue is

1. Striated muscle

2. Non-Striated muscle

3. Cardiac muscle

4. All of the above

Q. The four images given below represent the different types of animal tissues.






Identify A, B, C and D and select the most appropriate match among the options given below.

1. A-Cardiac muscle tissue, B-Bone tissue, C-Columnar epithelium,
   D-Collagen fibres
2. A-Bone tissue, B-Cardiac muscle tissue, C-Collagen fibres,
   D-Columnar epithelium
3. A-Columnar epithelium, B-Bone tissue, C-Cardiac muscle tissue,
   D-Collagen fibres
4. A-Collagen fibres, B-Bone tissue,
   C-Columnar epithelium, D-Cardiac muscle tissue

Q.

Communication junctions between the cells of cardiac muscle are:

1. Intervertebral disk

2. Intervertebral foramen

3. Intercalated discs

4. Interneurons

Q.

Which of the following is a voluntary muscle ?

1. Striated muscle

2. Unstriated muscle

3. Cardiac Muscle

4. both (a) and (b)

Q. Which one of the following statements describes the cardiac muscle?

1. Striated and involuntary
2. Non-striated and involuntary
3. Non-striated and voluntary
4. Striated and voluntary

Q. Intercalated discs are characteristic feature of

1. skeletal muscles
2. smooth muscles
3. cardiac muscles
4. all of these

Q. In humans, all muscles in the body are of the same type.

1. False
2. True

Q. Match the following:

$\begin{array}{cccc}& \text{Tissue}& \text{Location}& \text{Function}\\ 1& \text{Fluid connective tissue}& \text{A. Heart}& \text{i. Secretion}\\ 2& \text{Cardiac muscle tissue}& \text{B. Blood}& \text{ii. Heart contraction}\\ 3& \text{Neural tissue}& \text{C. Salivary gland}& \text{iii. Circulation and transport of materials}\\ 4& \text{Glandular epithelium}& \text{D. Neuron}& \text{iv. Control over body response}\end{array}$

1. 1-A-i, 2-B-ii. 3-C-iii, 4-D-iv
2. 1-B-i, 2-C-ii. 3-B-iii, 4-A-iv
3. 1-B-iii, 2-A-ii. 3-D-iv, 4-C-i
4. 1-D-i, 2-C-ii. 3-A-iii, 4-D-iv

Q. Which of the following is common in skeletal and cardiac muscles ?

1. Voluntary
2. Involuntary
3. Striated
4. None of the above

Q. Intercalated discs are characteristic feature of

1. skeletal muscles
2. smooth muscles
3. cardiac muscles
4. all of these

Q. One of the following differentiates cardiac muscles from skeletal muscles

1. Centrally located single nucleus
2. Fewer mitochondria
3. Difference in myofibrils
4. Fewer myosin and actin bands