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Head Mirror with head band: to focus light into the cavity under inspection; mirror is concave and is used with a Chiron lamp to produce a parallel beam of light; doctor views through the hole (average diameter of mirror is 3 & 1/2" & that of hole is 1/4") Head mounted lights with head band: to focus light into the cavity under inspection ...
I think it shows well enough how the mug and the torus are topologically equivalent, and it just requires a little bit of thought to figure that the bottom of the cup is rising to the top in order to make the overall shape convex for a smooth transition, and it seems that once the average person realizes this the whole concept of topological ...
The neck of the process rises from the posterior of the ramus mandibulae. [1] It is flattened from before backward, and strengthened by ridges which descend from the forepart and sides of the condyle. Its posterior surface is convex; its anterior surface has a depression for the attachment of the lateral pterygoid muscle. [1]
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 posterior view contains, from superior to inferior, the cervical region encompassing the neck, the scapular region encompassing the scapulae and the area around, the dorsal region encompassing the upper back; the lumbar region encompassing the lower back. the sacral region occurring at the end of the spine, directly above the buttocks.
It is coated with cartilage in the fresh state, except over an ovoid depression, the fovea capitis, which is situated a little below and behind the center of the femoral head, and gives attachment to the ligament of head of femur. The thickest region of the articular cartilage is at the centre of the femoral head, measuring up to 2.8 mm. [1]
Pages in category "Human head and neck" The following 200 pages are in this category, out of approximately 245 total. This list may not reflect recent changes .
The skull cup from Gough's Cave. A skull cup is a cup or eating bowl made from an inverted human calvaria that has been cut away from the rest of the skull.The use of a human skull as a drinking cup in ritual use or as a trophy is reported in numerous sources throughout history and among various peoples, and among Western cultures is most often associated with the historically nomadic cultures ...