Table of Contents
- 1 What is the morphological neck of humerus?
- 2 Is the anatomical neck of the humerus superior to the surgical neck?
- 3 What is the surgical neck?
- 4 What is the function of the surgical neck of the humerus?
- 5 What does the anatomical neck of the humerus do?
- 6 Why is the surgical neck of the humerus more likely to fracture?
- 7 What is the use of surgical neck of humerus?
- 8 Why is it called a surgical neck?
What is the morphological neck of humerus?
The humeral upper extremity consists of a rounded head, a narrow neck, and two short processes (tubercles, sometimes called tuberosities). The body is cylindrical in its upper portion, and more prismatic below….Shaft.
| Body of humerus | |
|---|---|
| TA98 | A02.4.04.001 |
| TA2 | 1180 |
| FMA | 13303 |
| Anatomical terms of bone |
Is the anatomical neck of the humerus superior to the surgical neck?
Osteology. The humerus begins proximally as a rounded head and joins the greater and lesser tubercles via the anatomical neck of the humerus. The surgical neck is found just inferior to the tubercles where the shaft begins.
Why does the humerus have an anatomical neck and a surgical neck?
As the neck continues along the humerus body, it is called the surgical neck (so named because this is the location of many fractures that require surgery). 3. The greater tubercle (a round projection, also called a nodule), is where muscles and ligaments attach.
What is the surgical neck?
Medical Definition of surgical neck : a slightly narrowed part of the humerus below the greater and lesser tubercles that is frequently the site of fractures.
What is the function of the surgical neck of the humerus?
It is a clinically important anatomical feature of the humerus as it is the most frequently fractured site of the proximal humerus, putting the axillary nerve and posterior circumflex humeral branch of the axillary artery at risk.
What do you know about the osteology of upper end of the humerus?
What does the anatomical neck of the humerus do?
It represents the fused epiphyseal plate. It is best marked in the lower half of its circumference; in the upper half it is represented by a narrow groove separating the head of the humerus from the two tubercles, the greater tubercle and the lesser tubercle….
| Anatomical neck of humerus | |
|---|---|
| FMA | 23356 |
| Anatomical terms of bone |
Why is the surgical neck of the humerus more likely to fracture?
Avascular necrosis of the humeral head: this is more common in complex fractures with multiple fragments where interruption to the blood supply is more likely and in fractures of the surgical neck.
What attaches to the anatomical neck of humerus?
Anatomical terms of bone 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 gives attachment to the capsular ligament of the shoulder joint except at the upper inferior-medial aspects.
What is the use of surgical neck of humerus?
Why is it called a surgical neck?
The circumference of its articular surface is slightly constricted and is termed the anatomical neck, in contradistinction to a constriction below the tubercles called the surgical neck which is frequently the seat of fracture.
Why is the area just distal to the tubercles of the humerus called the surgical neck?
Why is the area just distal to the tubercles of the humerus called the surgical neck? This area is called the surgical neck because it is the most frequently fractured part of the humerus.