What are the parts of the upper extremities?

The upper extremity or arm is a functional unit of the upper body. It consists of three sections, the upper arm, forearm, and hand. It extends from the shoulder joint to the fingers and contains 30 bones.

What is the upper extremity?

(UH-per ek-STREH-mih-tee) The part of the body that includes the arm, wrist, and hand.

What are the four parts of upper extremities or arms?

For anatomists, the upper limb consists of the arm (the upper arm), the forearm (the lower arm), and the hand. The arm consists of a single bone, the humerus. The forearm consists of two bones, the ulna and radius. And the hand consists of 27 bones, which are grouped into the phalanges, metacarpals, and carpals.

What is the anatomical position of the upper extremity?

In the anatomical position, the body is upright, directly facing the observer, feet flat and directed forward. The upper limbs are at the body’s sides with the palms facing forward.

What are extremities of the body?

Definition of extremity 1a : the farthest or most remote part, section, or point the island’s westernmost extremity. b : a limb of the body especially : a human hand or foot. 2a : extreme danger or critical need.

What is the difference between upper and lower extremity?

Your upper extremity bones include the humerus (upper arm), radius and ulna (forearm), and hand. Your lower extremity bones include the femur (thigh bone), tibia and fibula (shin bone), and foot.

What is the difference between anatomy and physiology?

Anatomy and physiology are two of the most basic terms and areas of study in the life sciences. Anatomy refers to the internal and external structures of the body and their physical relationships, whereas physiology refers to the study of the functions of those structures.

What is the upper arm called?

Humerus. The humerus is a long bone in the upper arm. It’s located between the scapula and the elbow joint.