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The curved arrangements of the foot bones that spread body weight, absorb shock and give the spring needed for standing and walking.
Bones, ligaments and muscles hold the spring: the medial longitudinal arch is highest, the spring ligament props the talus, and its failure flattens the foot.
Brachial Plexus
A network of nerves (roots C5–T1) that supplies the upper limb.
Femoral Triangle
A triangular space in the upper thigh containing major neurovascular structures.
Carpal Tunnel
The narrow passage at the wrist through which the median nerve and flexor tendons run.
The Knee Joint
The largest synovial joint in the body, a modified hinge between femur, tibia and patella allowing flexion, extension and slight rotation.
The Hip Joint
A ball-and-socket synovial joint between the head of the femur and the acetabulum, built for stability and weight-bearing.
The Shoulder Joint
A ball-and-socket synovial joint between the head of the humerus and the shallow glenoid cavity of the scapula, built for a huge range of movement.