Which is the humerus bone?
The humerus — also known as the upper arm bone — is a long bone that runs from the shoulder and scapula (shoulder blade) to the elbow. Fractures of the humerus are classified in one of two ways: proximal humerus fracture or humerus shaft fracture.
What is the humerus muscle?
Function. The humerus serves as an attachment to 13 muscles which contribute to the movements of the hand and elbow, and therefore the function of the upper limb.
Where is the humerus bone located?
humerus, long bone of the upper limb or forelimb of land vertebrates that forms the shoulder joint above, where it articulates with a lateral depression of the shoulder blade (glenoid cavity of scapula), and the elbow joint below, where it articulates with projections of the ulna and the radius.
What is the humeral neck?
The surgical neck of the humerus is a constriction below the tubercles of the greater tubercle and lesser tubercle, and above the deltoid tuberosity, specifically found at the proximal end of the body of the humerus, and distally towards the greater tubercle and lesser tubercle.
What is femur and humerus?
The humerus and the femur are corresponding bones of the arms and legs, respectively. While their parts are similar in general, their structure has been adapted to differing functions. The head of the humerus is almost hemispherical, while that of the femur forms about two-thirds of a sphere.
Why is humerus called humerus?
Etymology. The word “humerus” is derived from Latin: humerus, umerus meaning upper arm, shoulder, and is linguistically related to Gothic ams shoulder and Greek ōmos.
What movement does the humerus perform?
The humerus works in conjunction with these muscles to raise forward and lower (also called flexion and extension) the upper arm, raise laterally and lower (also called abduction and adduction) the upper arm, move the arm in small and large circular motions (also called circumduction), and rotate inward or outward ( …
Is the humeral neck the same as the surgical neck?
The anatomical neck of the humerus is located distal to the head of the humerus, at an oblique angle to the shaft of the humerus. The surgical neck of the humerus on the other hand is a constriction of the humerus located inferior to the greater and lesser tubercles.
Why is humerus called 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).
What is the largest bone in the body called?
Background. The femur is one of the most researched bones in the human anatomy and forensic medicine. As the longest bone in the human body, it is well preserved in skeletal remains.
What muscles attach to humerus?
The pectoralis major, latissimus dorsi, deltoid, and rotator cuff muscles connect to the humerus and move the arm. The muscles that move the forearm are located along the humerus, which include the triceps brachii, biceps brachii, brachialis, and brachioradialis.
What passes in surgical neck of humerus?
The axillary nerve, formed from the posterior cord of the brachial plexus, wraps around the surgical neck of the humerus, and provides innervation to the deltoid and rotator cuff muscles, specifically the teres minor.
How painful is a femur break?
A femoral shaft fracture usually causes immediate, severe pain. You will not be able to put weight on the injured leg, and it may look deformed—shorter than the other leg and no longer straight.
Where is a femur?
femur, also called thighbone, upper bone of the leg or hind leg. The head forms a ball-and-socket joint with the hip (at the acetabulum), being held in place by a ligament (ligamentum teres femoris) within the socket and by strong surrounding ligaments.
How do you pronounce Humeri?
Phonetic spelling of humeri
- hyoo-mer-uh s. Minerva Bode.
- humer-i. Walker Effertz.
Which is the smallest bone?
The stapes is the smallest bone in the human body.