Wednesday , October 5 2022
NCERT 5th Class (CBSE) Science: Skeletal System and Nervous System

NCERT 5th Class (CBSE) Science: Skeletal System and Nervous System

Question: What is skeletal system?

Answer: The skeletal system is the framework of bones that gives support to our body.

Question: Describe the different parts of the skeleton system.

Answer: The different parts of the skeleton system are:

  1. Skull: The skull acts like a helmet and protect the brain.
  2. Rib cage: The rib cage protects the heart and lungs.
  3. Backbone: The backbone surrounds and protects the spinal cord.
  4. Limbs: (Arms and legs) help us inn doing many activities and in moving from one place to another.

Question: What is a rib cage and how many pairs of ribs do maost people have.

Answer: Ribs form a cage of bones around the chest called the rib cage. Most people have 12 pairs of ribs.

Question: What is cartilage? Name any two organs of the human body that have cartilage.

Answer: Cartilage is a tough, elastic substance. It holds the bones together at the joints. Ears and nose have cartilage.

Question: Write any four functions of the skeletal system.

Answer: The functions of the skeletal system are:

  1. The skeleton gives shape and support to our body.
  2. It protects the soft internal organs:
    (i) The skull protects the brain.
    (ii) The rib cage protects the heart and the lungs.
    (iii) The backbone protects the spinal cord.
  3.  It allows the movement of different body parts. 
  4. Many bones in our body are hollow. They are filled with a jelly-like substance called bone marrow. Blood cells are made in the bone marrow.

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  1. Nandini Bhattacharya

    Very good site

  2. Informative website!