Sartorius Muscle Anatomy: Origin, Insertion, Actions, Innervation, and Clinical Relevance
The sartorius muscle is a long, superficial muscle of the anterior thigh that crosses both the hip and knee. It begins at the anterior superior iliac spine (ASIS), travels diagonally across the thigh, and attaches to the medial proximal tibia as part of…
Phalanges: Complete Anatomy of the Finger and Toe Bones
What Are Phalanges? Phalanges are the small bones that form the fingers and toes. The singular form is phalanx, while phalanges is the plural. They are part of the appendicular skeleton and sit beyond the metacarpal bones in the hand and the metatarsal…
Semimembranosus Muscle: Anatomy, Function, Origin, Insertion, and Injuries
The semimembranosus is one of the three principal hamstring muscles in the posterior thigh. It sits on the medial side of the hamstring group and extends from the ischial tuberosity toward the posteromedial proximal tibia. Unlike a simple muscle with one…