
The first cervical vertebra is
A. Axis
B. Atlas
C. Lumbar
D. Sacral
Answer
513.3k+ views
Hint:Cervical vertebra: These are 7 in number and are present in the neck. The first cervical vertebra is ring like structure which does not have any anterior or posterior cervical
Complete answer
A. Axis: The second cervical vertebra is termed as anus. The anus allows side to side or burning movement to the atlas and skull together on it.
B. Atlas: It is the first cervical vertebra. It is almost ring like. It provides up and down or nodding movement to the skull on it.
C. Lumber: These are 5 in number and are located in the abdomen. They are largest and strongest to bear the weight of abdominal viscera that hang from their region of the back. They have larger neural spines and transverse processes.
D. Sacral: These are 5 in number and are placed in the pelvis. They fuse in childhood to form a single bone, the sacrum, in the adult.The sacrum lies between the innominate bones of the pelvic girdle.
Hence the correct answer is option B, Atlas.
Note: Atlas is also called ‘yes bone’ as the head can nod on atlas forward or backward. It is named for Atlas of Greek mythology because, just as Atlas supported the globe, it supports the entire system of the head.
Complete answer
A. Axis: The second cervical vertebra is termed as anus. The anus allows side to side or burning movement to the atlas and skull together on it.
B. Atlas: It is the first cervical vertebra. It is almost ring like. It provides up and down or nodding movement to the skull on it.
C. Lumber: These are 5 in number and are located in the abdomen. They are largest and strongest to bear the weight of abdominal viscera that hang from their region of the back. They have larger neural spines and transverse processes.
D. Sacral: These are 5 in number and are placed in the pelvis. They fuse in childhood to form a single bone, the sacrum, in the adult.The sacrum lies between the innominate bones of the pelvic girdle.
Hence the correct answer is option B, Atlas.
Note: Atlas is also called ‘yes bone’ as the head can nod on atlas forward or backward. It is named for Atlas of Greek mythology because, just as Atlas supported the globe, it supports the entire system of the head.
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