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Describe the name and feature of 4 bones of the upper limb or lower limb.

Question:

Describe the name and feature of 4 bones of the upper limb or lower limb.

Skeletal System:

The skeletal system will work closely with the muscular system to allow for body movements. When these two are combined, these systems are referred to as the musculoskeletal system.

Answer and Explanation: 1

Four important upper limb bones include the scapula, humerus, radius, and ulna.

The scapula is also known as the shoulder blade and is one part of the shoulder joint. The bony landmark known as the glenoid fossa is the specific structure that makes up the "socket" portion of the ball and socket joint.

The humerus is the upper arm bone and is the second part to the shoulder joint. Specifically, the head of the humerus makes up the "ball" portion of the ball and socket joint.

The radius and ulna are both lower arm bones. The radius will sit on the thumb side and the ulna sits on the pinkie finger side. The radius specifically will twist over the ulna to allow for the actions of supination and pronation.


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Long Bones in the Human Body

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Chapter 6 / Lesson 11
20K

Learn about the long bones in the body, including the long bone definition and how many long bones are in the body. Discover examples of long bones, types of long bones, and where in the human skeleton long bones are found.


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