latbs-auial skeletal landmakspts (Protected Viel Llast saved by user-PowerPoint

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latbs-auial skeletal landmakspts (Protected Viel Llast saved by user-PowerPoint Einne C Anyengbu lgbonagwam ED iew Tell me what you want to do vinuses nfess you need to edit, it's safer to stay in Protected View Enable Editing Questions 1. How would head movements be affected if vertebrae C1 & C2 had 2. What is the functional advantage of the lack of a spinous process in 3. Discuss the contribution of the intervertebral discs to the length & 4. Name the three parts of the sternum. How many ribs attach the same structure as C3? C1? flexibility of the spine directly to each part? 26201 up

Explanation / Answer

2) C1 veterbrae also called as atlas, forms a joint with occipital condyles known as atlanto-occipital joint.It is also called as yes joint as it provides free movement in up and down direction.

Spinous process provides muscle attachments,also they are directed posteriorly and in downwards direction.

Due to absence if this spinous process,there is no resistance offered to the up movement and down movement,and it is performed freely.

Presence os spinous process would have created problem in up movement.

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