Skull and Backbone
Skull and Backbone
Skeleton, the supportive framework of an animal body. Organisms that have skeleton made up of bones are called as vertebrates. Invertebrates on the other hand do not have skeletal made up of bones. In this section, we will study about protective bone structures present around brain and spinal cord. Brain is protected by skull and spinal cord is protected by vertebral column.
The Skull
The skull is the bony structure that surrounds and protects your brain. It contains holes for your eyes, ears, nose and mouth. The upper part is made up of 8 flat bones form the brain box or cranium which encloses and protects our brain .The face and jaw contain 14 bones. Your teeth are fixed to the jaw bones. The lower jaw bone is the only movable bone in the skull. It enables you to chew food and talk.
The Backbone or Spine
There is a long hard bony structure which is not very smooth.This is the backbone. It is not smooth because it is made up of a number of small bones. It consists of 33 small bones called the vertebrae. The small bone join together to form a strong column called the vertebral column. These are joined to each other. The joints allow slight movement of the vertebrae. This is why you can bend and twist your back. The backbone is attached to the base of the skull. It forms the central supporting rod for the skeleton. Each vertebra has a hole in it. The delicate organ of your body called the spinal cord passes through these holes. Thus, the backbone protects the spinal cord. The backbone is also called the spine or the vertebral column.
On the back of a vertebrae there is a long hard bony structure which is not very smooth this is the __________________ . | |||
| Right Option : A | |||
| View Explanation | |||
Organism that have skeleton made up of bones are called as _________________________ . | |||
| Right Option : A | |||
| View Explanation | |||
Skull _______________ | |||
| Right Option : D | |||
| View Explanation |
Students / Parents Reviews [20]
I have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thAbhyas academy is great place to learn. I have learnt a lot here they have finished my fear of not answering.It has created a habit of self studying in me.The teachers here are very supportive and helpful. Earlier my maths and science was good but now it has been much better than before.
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Cheshta
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Barkha Arora
10thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
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Shivam Rana
7thUsually we see institutes offering objective based learning which usually causes a lag behind in subjective examinations which is the pattern followed by schools. I think it is really a work of planning to make us students grab the advantages of modes of examination, Objective Subjective and Onli...
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Prisha Gupta
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Aman Kumar Shrivastava
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Archit Segal
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Om Umang
10thThird consective year,my ward is in Abhyas with nice experience of admin and transport support.Educational standard of the institute recumbent at satisfactory level. One thing would live to bring in notice that last year study books was distributed after half of the session was over,though study ...
Ayan Ghosh
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Manish Kumar
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Shreya Shrivastava
8thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
