Muscular Anatomy Hub
A structured, exam-oriented map of muscles, fasciae, and functional muscle groups.
Muscular Anatomy Hub
Embryology
Developmental origins and differentiation of skeletal muscle.
Fundamentals
Core concepts: structure, mechanics, and functional anatomy essentials.
Skeletal Muscle – Structure, Fiber Types & Function
A detailed look at skeletal muscle structure, from fascicles to sarcomeres. Learn about fiber types (red vs. white), nerve supply, and fascicular architecture.
Biomechanics – Levers & Joint Positions Explained
Learn how the human body uses lever systems for movement. Understand the three classes of levers and the clinical importance of close-packed vs. loose-packed joints.
All Muscles of Body
Regional approach to major muscle groups across the body.
Facial Expression Muscles – Anatomy & Facial Nerve (CN VII)
An overview of the superficial muscles of the face, including the orbicularis oculi and buccinator, all innervated by the facial nerve (CN VII) for expressions.
Muscles of Mastication – Masseter, Temporalis, Pterygoids
An overview of the four principal muscles of mastication—temporalis, masseter, and medial and lateral pterygoids—all innervated by the mandibular nerve (V3).
Posterior Neck Muscles – Superficial & Deep Groups
An overview of the superficial (trapezius) and deep (splenius, semispinalis) muscle groups of the posterior neck responsible for head extension and rotation.
Prevertebral Neck Muscles – Longus Colli & Capitis
An overview of the prevertebral muscles (longus colli, longus capitis, rectus capitis) that lie anterior to the cervical spine and act to flex the neck and head.
Scalene Muscles – Anatomy, Function & Clinical
An overview of the scalene muscles (anterior, medius, posterior), their attachments, and their role in neck movement and as accessory muscles of respiration.
Fasciae
Key fascial layers, compartments, retinacula, and connective tissue planes.
Deep Cervical Fascia – Layers & Carotid Sheath
An overview of the three layers of deep cervical fascia (investing, pretracheal, and prevertebral) and the carotid sheath, which compartmentalize the neck.
Thoracic Wall Layers – Skin, Fascia & Muscle Coverings
Explore the layers covering the thorax, from the skin and superficial fascia containing the breast, to the deep fascia and the numerous extrinsic muscles.
Superficial Fascia of Abdomen – Camper’s & Scarpa’s
An overview of the two-layered superficial fascia of the lower abdomen: the superficial fatty layer (Camper's) and the deep membranous layer (Scarpa's).
Transversalis Fascia – Anatomy & Inguinal Relevance
An overview of the fascia transversalis, the thin fascial layer lining the transversus abdominis muscle, and its role in forming the deep inguinal ring.
Thoracolumbar Fascia – Layers & Attachments
An overview of the thoracolumbar fascia, a complex fascial sheet in the posterior trunk that encases the deep back muscles and serves as an attachment site.
Functional Groups
High-yield functional movements and biomechanics-based groupings.
Supination & Pronation – Forearm Rotation Explained
An overview of the rotatory movements of the forearm, detailing the axis of rotation, the mechanism involving the radio-ulnar joints, and the key muscles involved.
Hand Arches – Transverse & Longitudinal Explained
An overview of the hand's transverse and longitudinal arches, which provide a hollow palm for a secure grip, and the muscles that maintain their structure.
Hand Movements – Grip Types, Thumb Actions & Finger Movements
An overview of hand functions, including power and precision grips, and the specific movements of the thumb (opposition) and fingers (flexion, extension, abduction).
Foot Arches – Medial, Lateral & Transverse
A detailed look at the longitudinal and transverse arches of the foot, the bones that form them, and the ligaments and muscles that provide critical support.
Explore Related Anatomy Hubs
Upper Limb Hub
Shoulder, arm, forearm, and hand anatomy organized for structured revision.
Lower Limb Hub
Hip, thigh, leg, ankle, and foot anatomy with functional and clinical focus.
Skeletal System Hub
Bones, joints, osteology, and biomechanics forming the structural framework of the body.