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The anatomical neck of the humerus is obliquely directed, forming an obtuse angle with the body of the humerus. It represents the fused epiphyseal plate. It represents the fused epiphyseal plate. [ 1 ]
This is located posteroinferior to the deltoid tuberosity. The inferior boundary of the spiral groove is continuous distally with the lateral border of the shaft. Radial groove continuing as the lateral border of shaft of the humerus. The nutrient foramen of the humerus is located in the anteromedial surface of the humerus.
In cursorial (running) animals such as the pronghorn, the deltoid tubercle is located about a quarter of the way down the shaft, which allows for rapid but relatively weak limb flexion and extension. In natatorial (swimming) animals such as the North American river otter , the tubercle is located nearly halfway down the shaft, which allows for ...
It is located on the center of the lateral border of the humerus bone. [1] It is situated alongside the posterior margin of the deltoid tuberosity , ending at its inferior margin. [ 2 ]
The lateral surface of the greater tubercle is convex, rough, and continuous with the lateral surface of the body of the humerus. It can be described as having a cranial and a caudal part. [1] Between the greater tubercle and the lesser tubercle is the bicipital groove (intertubercular sulcus). Rear view of the greater tubercle of right humerus
In human anatomy of the arm, the capitulum of the humerus is a smooth, rounded eminence on the lateral portion of the distal articular surface of the humerus. It articulates with the cup-shaped depression on the head of the radius , and is limited to the front and lower part of the bone.
The humerus has two tubercles, the greater tubercle and the lesser tubercle. These are situated at the proximal end of the bone, that is the end that connects with the scapula . The greater/lesser tubercule is located from the top of the acromion laterally and inferiorly.
The bicipital groove separates the greater tubercle from the lesser tubercle. [1] It is usually around 8 cm long and 1 cm wide in adults. [1] The groove lodges the long tendon of the biceps brachii muscle, positioned between the tendon of the pectoralis major muscle on the lateral lip and the tendon of the teres major muscle on the medial lip.