EVERYDAY SCIENCE

Detailed explanation-1: -The brachial plexus is a group of nerves that branches from the cervical spine (neck). The brachial plexus travels under the clavicle and through the armpit (axilla). In the upper arm the radial nerve wraps around the back side of the humerus bone.

Detailed explanation-2: -The nerves of the upper limb The anterior branches of the spinal nerves in the lower cervical region leave the spinal cord at the level of the lower part of the neck. They link up together forming the brachial plexus, which travels through the axilla to supply the arm.

Detailed explanation-3: -Nerves in the cervical spine Cervical nerves C1, C2 and C3 control your forward, backward and side head and neck movements. The C2 nerve provides sensation to the upper area of your head; C3 gives sensation to the side of your face and back of your head.

Detailed explanation-4: -The neck is part of a long flexible column, known as the spinal column or backbone, which extends through most of the body. The cervical spine (neck region) consists of seven bones (C1-C7 vertebrae), which are separated from one another by intervertebral discs.

Detailed explanation-5: -Ligaments attached to the vertebrae also serve as supportive structures. There are 31 pairs of spinal nerves and roots. Eight pairs of cervical nerves exit the cervical cord at each vertebral level.