The ulnar and radial arteries arch together within the palm of the hand, supplying the front of the hand, fingers, and thumb. Other arteries travel across the back of the wrist to supply the back of the hand, fingers, and thumb.

2024年3月9日 · On the back of the hand, where the knuckles form, a flat, triangular area becomes visible just before the fingers. The knuckle’s raised prominence comes from the rounded heads of the metacarpal bones, which meet the finger bones at the metacarpophalangeal joints.

2010年8月14日 · Here I’ll show you how to accurately discuss where your hand problem is by teaching you some hand surface anatomy. Not every hand surgeon uses the same words to describe hand anatomy and upper extremity (hand and arm) problems. Many surgeons have their own particular and preferential ways of describing normal anatomy and disease processes.

2023年6月12日 · There are 19 bones in each of your hands. They’re grouped together by their location and function: Metacarpals: The bones that are in your palm and give it its shape. Phalanges: The individual bones that make up the segments of your fingers and thumb.

When discussing hand joints, we refer to the palmar or volar surface (the palm side), the dorsal surface (the back of the hand), the radial side (toward the thumb), and the ulnar side (toward the little finger). Jump to: The thumb digit has only two phalanges (bones) so it only has one joint.

2018年1月20日 · Back (opisthenar): The back of the hand shows the dorsal venous network, a web of veins. Wrist: The connection point between the arm and the hand, the wrist enables hand movements.

the central compartment of the palmar surface of the hand contains the flexor tendons, the lumbricals, the superficial palmar arterial arch, and common palmar digital branches of the median and ulnar nerves

2024年11月12日 · Surface anatomy of the left hand. A is the dorsum of the left hand, and B is the palm of the left hand. Number 1 is the position of the extensor retinaculum, 2 is the position of the flexor...

2015年12月16日 · To understand the anatomy of the hand we first must understand the anatomy of the forearm and wrist. The forearm consists of two bones, the radius and the ulna. Both forearm bones articulate with the carpal bones of the wrist distally. The radius articulates with the cashew shaped scaphoid bone, and the croissant or moon-shaped lunate bone.

2023年11月13日 · The bones of the hand can be divided into three distinct groups: Carpals; Metacarpals; Phalanges; Each group of hand bones is important in its own right, but the eight carpals are especially interesting because they are arranged in two distinct rows and are direct contributors to the formation of the wrist. We’ll come back to the wrist later on.