What are the joints of the upper limb?
What is the joint of upper arm?
Humerus. The humerus is the long bone between the shoulder and the elbow. It has the ball of the ball and socket of the shoulder (glenohumeral) joint. At the other end, it has its portion of the elbow joint.
What are the 3 main parts of the upper limb?
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. It also consists of many nerves, blood vessels (arteries and veins), and muscles.Jul 31, 2021
Which joint is in shoulder?
The glenohumeral joint is what most people think of as the shoulder joint. It's the major joint in the shoulder, where the rounded top, or head, of the humerus, nestles into a rounded socket of the scapula, called the glenoid. This ball-and-socket construction allows for circular movement of the arm.
Which is a hinge joint?
A hinge joint is a type of synovial joint that exists in the body and serves to allow motion primarily in one plane. ... [3][4] The hinge joints of the body include the elbow, knee, interphalangeal (IP) joints of the hand and foot and the tibiotalar joint of the ankle.Jul 26, 2021
What are the four sections of the upper limb?
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 ulna and radius?
The radius and the ulna constitute as the bones of the forearm. The antebrachial region, as it is clinically known, spans the length of the region which extends roughly from elbow to wrist. The radius is the lateral of the two bones, which makes the ulna the medial bone of the forearm.
How many joints are in the shoulder?
The shoulder girdle is composed of the clavicle and the scapula, which articulates with the proximal humerus of the upper limb. Four joints are present in the shoulder: the sternoclavicular (SC), acromioclavicular (AC), and scapulothoracic joints, and glenohumeral joint.Jul 31, 2021
What are the 8 major joints of the body?
These joints can be described as planar, hinge, pivot, condyloid, saddle, or ball-and-socket joints. Figure 3. Different types of joints allow different types of movement. Planar, hinge, pivot, condyloid, saddle, and ball-and-socket are all types of synovial joints.
