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7 Μαρ 2024 · Anatomy, bony landmarks and function of the humerus. The deltoid tuberosity is a prominent rough triangular area located at approximately the mid-point of the lateral aspect of the shaft of the humerus. It serves as the distal attachment site for the deltoid muscle.
- Deltoid Muscle
The deltoid is a large shoulder muscle and its principal...
- Deltoid Muscle
30 Οκτ 2023 · The deltoid is a large shoulder muscle and its principal abductor. Learn about its anatomy, innervation, function and more at Kenhub!
In human anatomy, the deltoid tuberosity is a rough, triangular [1] area on the antero lateral (front-side) surface of the middle of the humerus. [2] It is a site of attachment of deltoid muscle. [2]
9 Οκτ 2022 · It is shaped like an inverted triangle and can be divided into three parts (anterior, middle and posterior). Attachments: Originates from the lateral third of the clavicle, the acromion and the spine of the scapula. It attaches to the deltoid tuberosity on the lateral aspect of the humerus. Innervation: Axillary nerve.
An important function of the deltoid is the stabilisation of the shoulder joint preventing subluxation or even dislocation of the head of the humerus, particularly when carrying a load. Deltoid is the prime mover of shoulder abduction.
30 Ιαν 2024 · The deltoid distally attaches to the deltoid tuberosity of the humerus. Function. When the 3 parts of the deltoid contract simultaneously, the muscle can assist in abducting the arm past 15°. The deltoid cannot initiate abduction because it contracts parallel to the humeral axis.
The deltoid tuberosity (deltoid tubercle) is the rough, triangular prominence found at the middle third of the anterolateral surface of the humerus. It provides an insertion site for the deltoid muscle.
