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. Bones and Joints. There are 27 bones within the wrist and hand. The wrist itself contains eight small bones, called carpals.
Contents
What are the parts of your hand?
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 palmar surface of hand?
Palmar surface: The palm or grasping side of the hand.
What is the anatomy name for hand?
The human hand consists of a broad palm (metacarpus) with 5 digits, attached to the forearm by a joint called the wrist (carpus).
What is the top of the wrist called?
The carpal bones are bound in two groups of four bones:
- the pisiform, triquetrum, lunate and scaphoid on the upper end of the wrist.
- the hamate, capitate, trapezoid and trapezium on the lower side of the hand.
What are the parts of the wrist?
Carpal bones in the wrist
- Scaphoid: long boat-shaped bone under your thumb.
- Lunate: a crescent-shaped bone beside the scaphoid.
- Trapezium: a rounded-square shaped bone above the scaphoid and under the thumb.
- Trapezoid: bone beside the trapezium that’s shaped like a wedge.
What is the dorsal aspect of hand?
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 the dorsal surface?
Dorsal and ventral
The dorsal (from Latin dorsum ‘back’) surface of an organism refers to the back, or upper side, of an organism.
What is palmar and dorsal?
The palmar interosseous muscles adduct the fingers towards the middle finger. This is in contrast to the dorsal interossei, which abduct the fingers away from the middle finger.All three intrinsic groups of muscles pass palmar to the axis of the metacarpophalangeal joints, and therefore contribute to flexion there.
What are phalanges?
Phalanges. The 14 bones that are found in the fingers of each hand and also in the toes of each foot. Each finger has 3 phalanges (the distal, middle, and proximal); the thumb only has 2. Metacarpal bones.
What is radial side of hand?
The radial nerve runs along the thumb-side edge of the forearm. It wraps around the end of the radius bone toward the back of the hand. It gives sensation to the back of the hand from the thumb to the third finger.
What is the heel of your hand?
The heel of the hand is the area anteriorly to the bases of the metacarpal bones, located in the proximal part of the palm. It is the area that sustains most pressure when using the palm of the hand for support, such as in handstand.
What is phalanges foot?
The phalanges (single: phalanx) of the feet are the tubular bones of the toes. The second to fifth toes each contain a proximal, middle and distal phalanx whereas the great toe (hallux) only contains a proximal and distal phalanx.
What are the toe bones called?
Phalanges (singular: phalanx) – the 14 bones that make up the toes. The big toe consists of two phalanges – the distal and proximal. The other toes have three. Sesamoids – two small, pea-shaped bones that lie beneath the head of the first metatarsal in the ball of the foot.
What is a joint?
A joint is the part of the body where two or more bones meet to allow movement. Generally speaking, the greater the range of movement, the higher the risk of injury because the strength of the joint is reduced. The six types of freely movable joint include ball and socket, saddle, hinge, condyloid, pivot and gliding.
What are thumb joints called?
The thumb basal joint, also known as the carpometacarpal (CMC) joint, is a specialized saddle-shaped joint that is formed by a small wrist bone (trapezium) and the first of the three bones in the thumb (metacarpal).
Where is the dorsal wrist?
The dorsal radial zone is the area of the wrist near the thumb over the palm side.
What is the wrist joint called?
The wrist joint also referred to as the radiocarpal joint is a condyloid synovial joint of the distal upper limb that connects and serves as a transition point between the forearm and hand. A condyloid joint is a modified ball and socket joint that allows for flexion, extension, abduction, and adduction movements.
What are gliding joints?
plane joint, also called gliding joint or arthrodial joint, in anatomy, type of structure in the body formed between two bones in which the articular, or free, surfaces of the bones are flat or nearly flat, enabling the bones to slide over each other.
What is dorsal and ventral?
In general, ventral refers to the front of the body, and dorsal refers to the back. These terms are also known as anterior and posterior, respectively.Similarly, for the feet, the dorsal side is the top of the foot, or the area facing upwards when standing upright.
What is dorsal part?
Dorsal: Relating to the back or posterior of a structure. As opposed to the ventral, or front, of the structure. Some of the dorsal surfaces of the body are the back, buttocks, calves, and the knuckle side of the hand.