Advertisements
Advertisements
Question
Give structure, types and functions in brief of the following:
Muscular tissue
Solution
Muscular tissue:
Structure - Muscle tissue consists of cells which are elongated and large-sized, hence they are also called muscle fibres. These fibres are of various sizes. Contractile proteins are present in the muscle cells which bring about their contraction and relaxation. The cytoplasm of muscle fibre is called sarcoplasm and is bounded by a membrane called sarcolemma.
Types: Muscle tissue is of three types:
(i) Striated muscle tissue
(ii) Unstriated muscle tissue
(iii) Cardiac muscle tissue
Functions -
(i) Muscles bring about all voluntary movements done by a person.
(ii) All the involuntary movements needed to keep the body alive are possible due to muscles.
APPEARS IN
RELATED QUESTIONS
Name the tissue responsible for movement in our body.
Enlist three types of muscles with their locations.
Diagrammatically show the difference in three types of muscle fibres.
Cardiac muscle is ______.
Contractile proteins are found in
Voluntary muscles are found in
Match the column (A) with the column (B)
| (A) | (B) | ||
| (a) | Fluid connective tissue | (i) | Subcutaneous layer |
| (b) | Filling of space inside the organs | (ii) | Cartilage |
| (c) | Striated muscle | (iii) | Skeletal muscle |
| (d) | Adipose tissue | (iv) | Areolar tissue |
| (e) | Surface of joints | (v) | Blood |
| (f) | Stratified squamous epithelium | (vi) | Skin |
Differentiate the following activities on the basis of voluntary (V) or involuntary (IV) muscles.
Writing with hand
Assertion: Non-striated muscles are said to be voluntary in nature.
Reason: Non-striated muscles are under the control of our will.
A muscle fibre tapers at both ends and does not show striations. Name the muscle fibre.
