Ana3D

left trapezius

Muscular

3D model: left trapezius
left trapezius
3D models: SPL-PNL Brain Atlas, M. Halle, F. Talos, M. Jakab, N. Makris, D. Meier, L. Wald, B. Fischl, R. Kikinis, Surgical Planning Laboratory, Brigham and Women's Hospital, Harvard Medical School (openanatomy.org). All or portions of this licensed product (such portions are the "Software") have been obtained under license from The Brigham and Women's Hospital, Inc. and are subject to the terms and conditions of the 3D Slicer License, part B. Designed for research purposes only; clinical applications are neither recommended nor advised. Modified: meshes converted and simplified.

In 1 atlas

Key points

  • The left trapezius is a broad, superficial muscle covering the back of the neck and upper trunk on the left side.
  • It attaches the skull and vertebral column to the clavicle and scapula.
  • Its upper, middle and lower fibres have different directions and contribute to shoulder elevation, retraction, depression and upward rotation.
  • The spinal accessory nerve supplies its motor innervation, while cervical spinal nerves carry sensory information.

Read the guide: Left trapezius: anatomy, location and function