2016年12月5日 · Figure 7-8 Palmar view of the right hand showing a highly mechanical depiction of mobility across the five carpometacarpal joints. The peripheral joints—the first, fourth, and fifth (green) —are much more mobile than the central two joints (gray).

4 天之前 · The palm is the central part of the human hand, located on the anterior side between the fingers and the wrist. It is characterized by its concave shape and features a thick, hairless skin layer that enhances grip and tactile feedback.[2]

2023年6月12日 · Palmar fascia: Your palmar fascia is a thick, triangle-shaped ligament-like structure that runs under the skin of your palm. The narrow point of the triangle is at your wrist, and it gets wider toward the base of your fingers. It helps your hand keep its shape while you move it and prevents your skin from sliding when you’re holding something.

2023年11月13日 · Also on the palmar surface of the hand, the thenar eminence has a corresponding, ‘fleshy’ region on the ulnar side of the hand. It is easily palpated and visible at the base of the little finger.

2024年9月27日 · The interossei muscles are located between the metacarpal bones of the hand. They can be divided into two groups – dorsal and palmar. In addition to their actions of abduction (dorsal interossei) and adduction (palmar interossei) of the fingers, the interossei also assist the lumbricals in flexion at the MCP joints and extension at the IP joints.

6 天之前 · Explore the anatomy and function of the hand and wrist bones with Innerbody's interactive 3D model. The bones of the hand and wrist provide the body with support and flexibility to manipulate objects in many different ways. Each hand contains 27 distinct bones that give the hand an incredible range and precision of motion.

2023年10月30日 · Palmar interossei are short unipennate intrinsic muscles of the hand. They lie on the palmar surface of the hand and along with the dorsal interossei muscles occupy the spaces between the metacarpal bones.

Accurately depicts the anatomy of the hand. Labeled muscles: flexor digitorum longus and superficialis, interosseous, flexor retinaculum (transcarpal ligament) and abductor digiti minimi. Labeled arteries: proper plamar digital, radial, palmar digital, superficial palmar arch and ulnar.

2024年11月19日 · There are 5 metacarpal bones corresponding to each of the fingers. The proximal portion is called the base. The middle portion is called the shaft. The distal portion is called the head. Digits 2–5 have 3 phalanges: proximal, middle, and distal. The 1st digit or the thumb only has 2 phalanges: proximal and distal.

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.