What about Humerus bone ? write down its features and side determination?
HUMERUS The humerus is the bone of the arm. It is the longest bone of the upper limb. It has an upper end, a lower end and a shaft. Side Determination: 1. The upper end is rounded to form the head. The lower end is expanded from side to side and flattened from before backwards. 2. The head is directed medially, upwards and backwards. 3. The lesser tubercle projects from the front of the upper end and is limited laterally by the intertubercular sulcus or bicipital groove. Features: Upper End: The head is directed medially, backwards and upwards. It articulates with the glenoid cavity of the scapula to form shoulder joint. The line separating the head from the rest of the upper end is called anatomical neck. The lesser tubercle is an elevation on the anterior aspect of the upper end. The greater tubercle is an elevation that forms the lateral part of the upper end. The intertubercular sulcus or bicipital groove separates the lesser tubercle medially from the anterior part of the greater