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11th Class Chapter No 11 - Locomotion and Movement in biology for ISC

Locomotion is the voluntary movement of an individual from one place to another. Walking, running, climbing, swimming are the examples of locomotion. All locomotion are movement but all movements are not locomotion.

 

Types of Movement
Cells of the human body show three main types of movements:Amoeboid,Ciliary,Muscular.

  • Macrophages and leucocytes in blood exhibit amoeboid movements. Coordinated movement of cilia in trachea to remove dusts particles and passage of ova through fallopian tube is example of Ciliary movements.
  • Movement of limbs, jaw, tongue, etc. need muscular movement. Contractile property of muscles is used in movement in higher organism including human beings.

Muscles are specialized tissues of mesodermal origin. They have property like excitability, contractility, extensibility and elasticity.

 

Based on their location, three types of muscles are identified

  • Skeletal
  • Visceral
              
  • Cardiac
Posted in 11th on July 20 2020 at 09:06 PM

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