Why is the humerus bone important?

Why is the humerus bone important?

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.

What is unique about the humerus?

The Largest Bone in the Upper Arm The bottom of the humerus touches the top of the radius and ulna which joins the upper arm with the lower arm. The meeting of these bones allows for the wide range of motion which is possible at the shoulder joint, along with movement at the elbow.

What does finding humerus mean?

: the long bone of the upper arm between the shoulder and the elbow.

What are the characteristics of humerus bone?

It connects the scapula and the two bones of the lower arm, the radius and ulna, and consists of three sections. The humeral upper extremity consists of a rounded head, a narrow neck, and two short processes (tubercles, sometimes called tuberosities).

What is the top bone in your arm called?

humerus
Your arm is made up of three bones: the upper arm bone (humerus) and two forearm bones (the ulna and the radius). The term “broken arm” may refer to a fracture in any of these bones.

Why is the humerus called the funny bone?

It doesn’t really hurt as much as it feels weird. The “funny bone” got its nickname because of that funny feeling you get after you hit it. You get that funny feeling when the ulnar nerve is bumped against the humerus (say: HYOO-muh-rus), the long bone that starts at your elbow and goes up to your shoulder.

How strong is the humerus bone?

The humerus is a strong bone, analogous to the femur in the leg (which is the strongest bone in the body). It does not absorb the intensity of stress that the forearm bones do when you fall and catch yourself with your hands, since the humerus is farther up the chain of bones.

What part of the humerus is the most commonly fractured?

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.

What is the function of the humerus bone?

Anatomy The humerus has two large knobs at the top of the bone, called the greater and lesser tubercles, which join the scapula in order to provide movement along with stability. The rhythm between the scapula and the humerus is a very important one for adequate shoulder function.

How to tell a left humerus from a right humerus?

Orient the bones so that the rounded head is up. Look for the deep olecranon fossa on the lower (distal) end. Rotate the humerus so that the capitulum and trochlea face YOU. If the capitulum is on the left side of the bone, it is a left humerus. If the capitulum is on the right side, it is a right humerus.

What are the symptoms of a humerus fracture?

Symptoms vary depending on the specific type of fracture but may include: Deformity — “It does not look right.” What is the treatment for a humerus fracture? Most fractures of the proximal humerus can be treated without surgery if the bone fragments are not shifted out of position (displaced).

Where is right humerus located?

The humerus is the long bone in the upper arm. It is located between the elbow joint and the shoulder. At the elbow, it connects primarily to the ulna, as the forearm’s radial bone connects to the wrist.