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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 atlas is the topmost vertebra and the axis (the vertebra below it) forms the joint connecting the skull and spine. The atlas and axis are specialized to allow a greater range of motion than normal vertebrae. They are responsible for the nodding and rotation movements of the head. The atlanto-occipital joint allows the head to nod up and ...
The Atlas was originally released as a series of VHS tapes, published individually between 1995 and 2003. [2] The series was re-released in 2003 on DVD as Acland's DVD Atlas of Human Anatomy . The series uses unembalmed human specimens to illustrate anatomical structures. [ 3 ]
Anatomy of the human head. The human head consists of a fleshy outer portion, which surrounds the bony skull. The brain is enclosed within the skull. There are 22 bones in the human head. The head rests on the neck, and the seven cervical vertebrae support it. The human head typically weighs between 2.3 and 5 kilograms (5.1 and 11.0 lb) Over 98 ...
The atlanto-axial joint is a joint in the upper part of the neck between the atlas bone and the ... 40 to 70% of axial rotation of the head. [1] ... "Anatomy diagram ...
P. Palatine aponeurosis; Palatopharyngeus muscle; Paranasal sinuses; Parietal bone; Pars intermedia; Patulous Eustachian tube; Peripharyngeal space; Pharyngeal pouch ...
Yet use of the atlas persisted. Hildebrandt said that a decade ago, dental students in her classes "were basically giving each other thumb drives with bootlegged copies of the head and neck."
The neck is the part of the body in many vertebrates that connects the head to the torso. It supports the weight of the head and protects the nerves that transmit sensory and motor information between the brain and the rest of the body. Additionally, the neck is highly flexible, allowing the head to turn and move in all directions.