NCERT Solutions for Class 9 Science Chapter 6
Tissues
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Intext Questions
Page No-78
Questions No-1
Name the tissue responsible for movement in our body.
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The muscular tissue is responsible for movement in our body.
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Muscular tissue
Muscle tissue, the primary driver of movement in our body, consists of three main types:
1. Skeletal Muscle Tissue: These muscles, attached to bones via tendons, power voluntary movements. When we consciously move—walking, running, lifting—skeletal muscles contract and relax, providing the force necessary for movement. They’re responsible for body posture and locomotion.
2. Cardiac Muscle Tissue: Found exclusively in the heart, cardiac muscle tissue is involuntary. It orchestrates the continuous contraction and relaxation of the heart, ensuring the pumping of blood throughout the body. Its rhythmic contractions enable the heart to function as a powerful pump.
3. Smooth Muscle Tissue: Present in the walls of various internal organs, blood vessels, and the respiratory system, smooth muscles handle involuntary movements. They aid in processes like digestion, blood vessel dilation/constriction, and breathing. Their role is vital in various physiological functions.
These muscle tissues collaborate, allowing us to move, pump blood, and carry out involuntary bodily functions. Their synchronized actions facilitate daily activities and maintain the functionality of essential bodily systems, ensuring overall health and mobility.