What is the humerus bone called?

What is the humerus bone called?

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 main function of humerus bone?

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 the structure of the humerus bone?

The humerus is the longest and largest bone of the upper limb. It consists of a proximal end, a shaft and a distal end, all which contain important anatomical landmarks. The humerus articulates with the scapula proximally at the glenohumeral joint so it participates in the movements of the shoulder.

Does humerus have compact bone?

Compact bone forms the largest and strongest structure in the humerus, surrounding the trabeculae in the ends and the medullary cavity in the shaft.

What is the funny bone called?

the ulnar nerve
Funny you should ask. It turns out that your funny bone isn’t a bone. It’s actually a nerve — one that starts in your spine and travels from your neck, through your elbow and to your fingers (your pinky and ring fingers, to be exact). It’s called the ulnar nerve.

What movement does the humerus make?

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 ( …

Why is humerus called humerus?

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 are compact bones?

compact bone, also called cortical bone, dense bone in which the bony matrix is solidly filled with organic ground substance and inorganic salts, leaving only tiny spaces (lacunae) that contain the osteocytes, or bone cells.

Where do you find compact bone?

Compact bone is the denser, stronger of the two types of bone tissue ((Figure)). It can be found under the periosteum and in the diaphyses of long bones, where it provides support and protection.

What is Olecranal skin?

Weenus (or weenis or wenis) is a slang word for the excess or loose skin at the joint of one’s elbow, which is technically referred to as olecranal skin.