What are the compartments of the hand?
The hand is comprised of eleven separate compartments. These are the four dorsal interossei, three volar interossei, the thenar, the hypothenar, the adductor, and the mid-palm compartments, respectively.
What are the 3 arches of the hand?
The hollow cavity has been described as consisting of three arches that run in different directions: transverse, longitudinal and oblique, spanning the anterior surface of the hand. Although described anatomically, the modulation in the palmar arches has not been investigated kinematically during actual grasping.
How many compartments are in the forearm?
The muscles in the forearm control the fine and intricate movements of the fingers as well as the gross and forceful movements of the hand and wrist. These muscles are divided into two compartments, based on both anatomical and functional differences.
How many compartments are in the upper limb?
The upper limb is divided into three regions: the hand, the arm, and the forearm. The two proximal regions are further anatomically divided into two compartments, namely anterior and posterior. In addition to the bony framework, an impressive organization of deep fascia forms the divisions of these compartments.
What is the dorsal side of hand?
back
The opposite side of your hand, the back of your hand, is called the dorsal aspect of the hand. The term ‘dorsal’ refers to something that is towards the back of something. In this case, it’s the back of our hand.
What is distal transverse arch in hand?
The distal transverse arch of the hand passes through the metacarpophalangeal joints. In contrast to the rigid proximal arch, the ulnar and radial sides of the distal arch are relatively mobile. The keystone of the distal transverse arch is formed by the metacarpophalangeal joints of these central metacarpals.
What is the anatomy of hand?
The human hand has 27 bones: the carpals or wrist accounts for 8; the metacarpals or palm contains five; the remaining fourteen are digital bones; fingers and thumb. The palm has five bones known as metacarpal bones, one to each of the 5 digits. These metacarpals have a head, a shaft, and a base.
What is the top surface of the hand called?
Areas
- The palm (Volar), which is the central region of the anterior part of the hand, located superficially to the metacarpus.
- The opisthenar area (dorsal) is the corresponding area on the posterior part of the hand.