Ads
related to: cervical axial labeling questions worksheet free- Science Lessons
Browse Through Our List Of Science
Lessons And Watch Now.
- K-8 Science Lessons
Used in over 30,000 schools.
Loved by teachers and students.
- Explore Activities
Browse Through Our Video Gallery To
Get Insights About DIY Activities.
- Read The FAQs
Get Answers To Your Questions.
Learn More About What We Do.
- Plans & Pricing
Check the Pricing Of the Available
Plans. Select the One You Need!
- Grades 6-8 Science Videos
Get instant access to hours of fun
standards-based 6-8 videos & more.
- Science Lessons
Search results
Results From The WOW.Com Content Network
The head rests on the top part of the vertebral column, with the skull joining at C1 (the first cervical vertebra known as the atlas). The skeletal section of the head and neck forms the top part of the axial skeleton and is made up of the skull, hyoid bone, auditory ossicles, and cervical spine. The skull can be further subdivided into:
The brachial plexus is a network of nerves (nerve plexus) formed by the anterior rami of the lower four cervical nerves and first thoracic nerve (C5, C6, C7, C8, and T1).This plexus extends from the spinal cord, through the cervicoaxillary canal in the neck, over the first rib, and into the armpit, it supplies afferent and efferent nerve fibers to the chest, shoulder, arm, forearm, and hand.
In anatomy, the axis (from Latin axis, "axle") is the second cervical vertebra (C2) of the spine, immediately inferior to the atlas, upon which the head rests. The spinal cord passes through the axis. The defining feature of the axis is its strong bony protrusion known as the dens, which rises from the superior aspect of the bone.
The cervical plexus is situated deep to the sternocleidomastoid muscle, internal jugular vein, and deep cervical fascia. [ 1 ] It is situated anterior to the middle scalene muscle , and levator scapulae muscle .
The anterior scalene muscle (Latin: scalenus anterior), lies deeply at the side of the neck, behind the sternocleidomastoid muscle.It arises from the anterior tubercles of the transverse processes of the third, fourth, fifth, and sixth cervical vertebrae, and descending, almost vertically, is inserted by a narrow, flat tendon into the scalene tubercle on the inner border of the first rib, and ...
An axial CT scan showing a posterior arch defect. Accessory transverse foramen of the atlas is present in 1.4–12.5% across the population. [7] Foramen arcuale or a bony bridge above the vertebral artery on the posterior arch of the atlas may be present. This foramen has an overall prevalence of 9.1%. [8]
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
It is thought that these nerves are for primary sensory input, though there is some evidence that they have some motor input local musculature. Within the cervical spine, most joints are innervated by the medial branch nerve (a branch of the dorsal rami) from the same levels. In other words, the facet joint between C4 and C5 vertebral segments ...