the protrusion of cartilage from the anterior neck area is known as cricoid cartilage.
the protrusion of cartilage from the anterior neck area is known as cricoid cartilage.
the protrusion of cartilage from the anterior neck area is known as?
cricoid cartilage
in adult humans, the larynx is found in the anterior neck at the level of the c3–c6 vertebrae. it connects the inferior part of the pharynx (hypopharynx) with the trachea. the laryngeal skeleton consists of six cartilages: three single (epiglottic, thyroid and cricoid) and three paired (arytenoid, corniculate, and cuneiform). the hyoid bone is not part of the larynx, though the larynx is suspended from the hyoid. the larynx extends vertically from the tip of the epiglottis to the inferior border of the cricoid cartilage. its interior can be divided in supraglottis, glottis and subglottis.









































section::::structure.:cartilages.
larynx
cam impingement is created by the abnormal development of the femoral head-neck junction causing what has previously been described as a 'pistol-grip deformity'. this type of deformity is characterised by varying amounts of abnormal bone on the anterior and superior femoral neck at the head-neck junction (see fig. 6). the head-neck junction is at the base of the ball of the hip, where it joins the short neck, which in turn carries on downwards into the femur, or thighbone, itself. a bony protrusion or bump at the head-neck junction has been likened to a cam, an eccentric part of a rotating device. this leads to joint damage as a result of the non-spherical femoral head being forced into the acetabulum mainly with flexion and/or internal rotation. this may impart compression and shear forces to the articular cartilage, and may lead to labral tears and peeling away of the articular cartilage from the underlying bone, so-called cartilage delamination (see fig. 8).
hip arthroscopy