col'lum

[L.] i. The neck. 2. A constricted or neck-like portion of any organ or other anatomical structure, t. anatom'icum, anatomical neck of the humerus, a groove separating the head from the tuberosities, giving attachment to the capsular ligament, c. chirur'gicum, surgical neck of the humerus, the narrowing portion below the head and tuberosities, c. cos'ta [BNA], neck of the rib, the flattened portion of a rib between the head and the tuberosity, c. den'tis [BNA], neck of a tooth, the slightly constricted part of a tooth, between the crown and the root, which is grasped by the gum. t. fem'or is [BNA], neck of the femur, a short strong bar projecting at a more or le obtuse angle (about 125°) from the upper end of the shaft of the femur, and supporting the head. c. glan'dis [BNA], neck of the glans penis, a constriction behind the corona gland is penis. c. hu'meri, neck of the humerus; see c. an atom i cum and c. chirurgicum. c. mandib'uls, neck of the condyloid proce of the lower jaw. c. ra'dii [BNA], neck of the radius, the narrow part of the shaft just below the head or capitulum c. scap'ulee [BNA], neck of the scapula, a slight constriction marking the division between the head (glenoid cavity and coracoid proce ) and the body of the scapula, t. ta'li [BNA], a constriction separating the head, or anterior portion, of the astragalus from the body. c. vesi'cs f ell'ese [BNA], neck of the gallbladder, the narrow portion between the body of the bladder and beginning of the cystic duct.