What is the anatomy of a 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 are parts of the hand called?
Parts of a Hand
- Bones are hard tissues that give your hand shape and stability.
- Phalanges are the finger bones.
- Metacarpals are the middle part of the hand bones.
- Carpals are the wrist bones.
- Joints are places where bones fit together, allowing movement.
What is a dorsum on a hand?
The dorsum of hand (opisthenar area, dorsal area) is the corresponding area on the posterior part of the hand.
What is the dorsal aspect of the hand?
The front, or palm-side, of the hand is referred to as the palmar side. The back of the hand is called the dorsal side.
What ligaments are in the hand?
radial and ulnar collateral ligaments – a pair of ligaments which bind the bones of the wrist and provide stability. volar radiocarpal ligaments – a complex web of ligaments that support the palm side of the wrist. dorsal radiocarpal ligaments – ligaments that support the back of the wrist.
What is the fleshy part of the hand called?
Ball of the thumb may be: Thenar eminence, most fleshy portion of the palm of the human hand, located adjacent to the second joint of the thumb.
What is the webbed part of your hand called?
The web of the hand is a “fold of skin which connects the digits”. These webs, located between each set of digits, are known as skin folds (interdigital folds or plica interdigitalis). They are defined as “one of the folds of skin, or rudimentary web, between the fingers and toes”.
What is dorsal forearm?
The dorsal compartment of the forearm contains nine muscles: four belong to the superficial group (extensor digitorum communis, extensor digiti minimi, extensor carpi ulnaris and anconeus) and five to the deep group (supinator, abductor longus, extensor pollicis brevis, extensor pollicis longus, and extensor indices).
What are the layers of the hand?
Number 1 is the deep antebrachial fascia, 2 is the superficial fascia and dorsal venous network of the hand, 3 is the palmar aponeurosis, 4 is the thenar muscles, 5 is the hypothenar muscles, 6 is the palmaris brevis, 7 is the cephalic vein, and 8 is the basilic vein.
Is dorsal a top or bottom?
The dorsal (from Latin dorsum ‘back’) surface of an organism refers to the back, or upper side, of an organism. If talking about the skull, the dorsal side is the top. The ventral (from Latin venter ‘belly’) surface refers to the front, or lower side, of an organism.
What makes up the anatomy of the hand?
Anatomy of the Hand The hand is composed of many different bones, muscles, and ligaments that allow for a large amount of movement and dexterity. There are 3 major types of bones in the hand itself, including:
Is the back of the hand called the palmar side?
The front, or palm-side, of the hand is referred to as the palmar side. The back of the hand is called the dorsal side. There are 27 bones within the wrist and hand. The wrist itself contains eight small bones, called carpals. The carpals join with the two forearm bones, the radius and ulna, forming the wrist joint.
Is the back of the hand called the dorsal side?
The back of the hand is called the dorsal side.
Which is the distal part of the hand?
The distal part of the upper limb is divided in to three regions: 1. The wrist (carpus) 2. The hand (metacarpus) 3. The digits (fingers)