Thumb - Wikipedia
The thumb is the first digit of the hand, next to the index finger. [ A ] When a person is standing in the medical anatomical position (where the palm is facing to the front), the thumb is the outermost digit.
Complete Guide to Hand Anatomy: Parts, Names & Diagram
2024年3月9日 · Hand anatomy consists of bones, muscles, and neurovascular structures that work together. They help us touch, hold, and move objects every day. While intrinsic hand muscles of hand anatomy play a role, forearm muscles also send tendons through the wrist, allowing for a wide range of movements.
Thumb | Muscles, Movement, Joints | Britannica
thumb, short, thick first digit of the human hand and of the lower-primate hand and foot. It differs from other digits in having only two phalanges (tubular bones of the fingers and toes). The thumb also differs in having much freedom of movement and being opposable to tips of other digits.
Hand Anatomy: Bones, muscles, arteries and nerves | Kenhub
2023年11月13日 · Learn everything about hand and wrist anatomy using this topic page. Click now to study the bones, muscles, arteries, and nerves of the hand at Kenhub!
Anatomy of the thumb: annotated MRI | e-Anatomy - IMAIOS
2024年10月2日 · Thanks to the high-resolution 3-T MRI, the complex anatomy of the thumb can be imaged in exquisite detail to provide an accurate diagnosis of clinically important ligament and tendon injuries.
Hand Anatomy - eOrthopod.com
Most of the small muscles that work the thumb and pinky finger start on the carpal bones. These muscles connect in ways that allow the hand to grip and hold. Two muscles allow the thumb to move across the palm of the hand, an important function called thumb opposition.
Anatomy of the Hand and Wrist - Cleveland Clinic
2023年6月12日 · Your hand begins where your wrist ends. It includes your palm, fingers and thumb. How are the hand and wrist structured? Your hand and wrist are structured to allow you to move, flex and rotate your wrist joint and to use your hand to grab and touch objects.