Q. What is the name of the point where the scapula and clavicle connect?
The scapula and clavicle articulate with the bones of the thorax at one point only, here, at the sternoclavicular joint. The lateral end of the clavicle articulates with this projection on the scapula, the acromion, forming the acromio-clavicular joint.
Q. What is the distal lateral process of the humerus that joins the radius?
The distal end of the humerus has two articulation areas, which join the ulna and radius bones of the forearm to form the elbow joint. The more medial of these areas is the trochlea, a spindle- or pulley-shaped region (trochlea = “pulley”), which articulates with the ulna bone.
Q. What is the lateral rounded knob on the distal humerus?
capitulum
Q. What is the distal end of the humerus called?
The humerus (/ˈhjuːmərəs/, plural: humeri) is a long bone in the arm that runs from the shoulder to the elbow. It connects the scapula and the two bones of the lower arm, the radius and ulna, and consists of three sections….Distal humerus.
| Lower extremity of humerus | |
|---|---|
| TA2 | 1180 |
| FMA | 13303 |
| Anatomical terms of bone | |
Q. What muscles insert on the lesser tubercle of the humerus?
The subscapularis muscle originates at the subscapular fossa and inserts into the lesser tubercle of the humerus.
Q. What is the average neck shaft angle of the humerus?
Results: The average neck-shaft angle of the 2058 humeri was 134.7 degrees (range, 115 degrees to 148 degrees), and the angle was between 130 degrees and 140 degrees in 77.84% of the humeri.
Q. How many rotator cuff muscles insert at the greater tubercle of the humerus?
three muscles
Q. What is the difference between the anatomical and surgical neck of the humerus?
There is a portion called the anatomical neck and one called the surgical neck. The anatomical neck is the portion that lies just below the head. 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).
Q. What is the significance 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.
Q. Which of the following nerves is involved in fracture neck humerus?
A fracture in this area is most likely to cause damage to the axillary nerve and posterior circumflex humeral artery.
Q. What is the most common fracture site on the humerus?
The most frequently fractured site of the humerus especially in elderly is the surgical neck which is an area of constriction distal to the tuberosities. The deforming forces relevant to PHFs include: pectoralis major: displaces humeral shaft anterior/medial.
Q. How long does a spiral fracture of the humerus take to heal?
In total, it often takes between 4 and 6 months for a full recovery from a spiral fracture. Severe injuries may take as long as 18 months to heal properly.
