miembro superior

Upper Limb

It is characterized by mobility and ability to manipulate and hold.

It has a total of 32 bones and 42 muscles ,It consists of 4 segments

Shoulder girdle

Arm

Forearm

Hand

1)clavicle(large)

2)scapula(flat)

humerus(large)

1) Radius (large)

2)Ulna(large)

1) 8 carp(short)

2) 5 Metacarpus (large)

3)14 phalanges (large)

characteristic

characteristic

characteristic

characteristic

1)The shoulder girdle is formed by the bones of the clavicle and the scapula.

2)It is divided into three different regions: anterior or axillary, middle or deltoid and posterior or scapular.

3)It contains the greatest amount of movements of all body joints

1)It is articulated with the first in the scapula and with the second in the ulna.

2)usually used for the upper limb —or anterior

1)The Forearm is one of the four portions in which the upper or thoracic limb is divided, the third being of them.

2)The forearm is limited by the upper face with the arm through the elbow and the lower face with the hand through the wrist joint

1)they are part of the extremities of the human body, being the fourth segment of the upper or thoracic limb

2)They are located at the ends of the forearms, are prehensile and have five fingers each.

3)They cover from the wrist to the fingertips in humans.

Function

Function

Function

Function

It is the means of communication that exists between the upper or thoracic limb and the trunk. It is also responsible for connecting the upper limb with the axial skeleton.

The arm bone is the humerus, which articulates with the scapula in the glenoid cavity, and with the ulna (ulna) and radius in its proximal epiphysis..

The bones that form the shoulder girdle are:

Clavicle: two long bones that run horizontally. They are very superficial and are located in the upper part of the thorax. They have double curvature and are flattened at their lateral ends.

Scapula: they are also called shoulder blades and are triangular bones that are located posterior to ribs number 2 and 7. It is formed by three edges, the upper, the medial or vertebral and the lateral or axillary edge

It consists of a series of bones, muscles, nerves and vessels that fulfill a certain function in order to perform an action together.

They are the main organ for the physical manipulation of the environment.

The bones that form the arm are:

The bones that form the forearm are:

The bones that form the hand are:

The humerus is the longest bone of the upper extremities in humans.

1)The radius is articulated with the arm bone, the humerus, with the ulna itself (ulna), and with the bones of the scaphoid and semilunar carpus.

The human hand has 27 bones: the carpus or wrist has 8; The metacarpus or palm has 5 and the remaining 14 bones are digital.

2)The ulna is articulated only with the arm bone, the humerus, and with the radius