A View of the Muscular System Within a Female's Body

Description

Posterolateral neck and shoulder musculature is rendered in layered dissection on a female figure, with the occipitofrontalis (occipital belly) spanning the posterior scalp superior to the nuchal line and blending with the occipital aponeurosis. Inferior to the occiput, the trapezius forms a broad superficial sheet across the upper thoracic back, its superior fibers descending laterally toward the clavicle and acromion while the mid fibers course transversely toward the scapular spine. The sternocleidomastoid defines the anterolateral neck as it runs inferoanteriorly from the mastoid process toward the manubrium and medial clavicle, and the deltoid caps the lateral shoulder, wrapping from clavicle, acromion, and scapular spine to the deltoid tuberosity. Fiber direction is explicit. Tendinous attachments and fascial transitions are readable. Oblique posterior orientation matters because it clarifies the working overlap between trapezius, deltoid, and deeper scapular stabilizers that are often obscured in strict posterior or lateral views, a common stumbling block when teaching scapulohumeral rhythm and the scapular plane. Clinically, this is the corridor for palpable landmarks and injection planning: the acromion, spine of scapula, and posterior deltoid border help avoid the axillary nerve during deltoid intramuscular injections and guide assessment of trapezius dysfunction after spinal accessory nerve injury. Surface anatomy you can measure. Use this plate for gross anatomy labs, kinesiology and physical therapy instruction on shoulder girdle mechanics, and clinical education materials covering neck strain patterns, accessory nerve palsy, and posterior shoulder examination or injection technique. Anatomical accuracy verified by SciePro's Medical Advisory Board.