Anatomy System – Human Body Anatomy diagram and chart images

Top Anatomy Diagrams

Neurulation Development of the Central Nervous System Diagram

Neurulation forms the CNS from neural plate (ectoderm thickening) folding into neural groove, then neural tube by fusion of neural folds. Anterior neuropore closes first (day 25), posterior last (day…

The Spinothalamic Tracts Ascending Sensory 1 Diagram

Medical

The Spinothalamic Tracts Ascending Sensory Diagram

The spinothalamic tracts carry pain, temperature, and crude touch from the body: lateral for pain/temp, anterior for touch/pressure. Fibers cross in the spinal cord shortly after entry, ascend contralaterally to…

Medical

Course of the Lateral Cutaneous Nerve of the Forearm Diagram

Lateral cutaneous nerve of forearm (from musculocutaneous) supplies lateral forearm skin, running with cephalic vein. Its sensory only.

Bones

Articulations and Parts of the Sternum Diagram

Sternum parts: manubrium (superior, clavicular notches), body (middle, costal notches), xiphoid (inferior, cartilaginous in youth). Manubriosternal joint (angle of Louis) at T4/5 level.

Organs

The Hard and Soft Palate Diagram

Hard palate (maxilla/palatine bones) forms anterior roof of mouth; soft palate (muscular: tensor/levator veli palatini, palatoglossus/pharyngeus) hangs posteriorly with uvula. It separates oral/nasal cavities during swallowing.

Medical

Anatomical Course of the Inferior Alveolar Nerve and Lingual Nerve Diagram

Inferior alveolar nerve (V3 branch) enters mandibular foramen, runs in canal supplying lower teeth, exits as mental nerve for chin/lower lip; lingual nerve (also V3) supplies anterior tongue sensation/floor of…

Organs

Aorta Diagram

The aorta begins at left ventricle (ascending), arches leftward (arch with three branches), descends thoracic then abdominal to bifurcate at L4 into common iliacs. It supplies all systemic arteries except…

Cell

Aquaporin Water Channel

A membrane-level illustration of an aquaporin water channel shows how water crosses cell membranes efficiently. The protein channel is embedded in the lipid bilayer, with water molecules passing single file…

Medical

Anatomy of the Nerves of the Dorsum of the Foot Superficial and Deep Fibular Nerves Diagram

Nerves of dorsum foot include superficial fibular (sensory to dorsum except first webspace), deep fibular (first webspace skin, extensor digitorum brevis), sural (lateral foot). They emerge from anterior/lateral leg compartments.

Medical

Anatomical Course of the Common Fibular Nerve and its Terminal Branches Diagram

The common fibular (peroneal) nerve wraps around fibular neck (vulnerable to injury), divides into superficial (lateral compartment, peroneus longus/brevis) and deep (anterior compartment, tibialis anterior, extensors) branches. It supplies dorsiflexion,…

Organs

Human Heart Photo

The human heart, about fist-sized and nestled in the mediastinum behind the sternum, has a pointed apex at the left fifth intercostal space and base at the second rib, with…

Bones

Parts of the Hyoid Bone Body Greater Horn Lesser Horn Diagram

The hyoid bone parts include body (central, C3 level), greater horns (posterior/lateral projections for muscle/ligament attachments), lesser horns (small superior projections for stylohyoid ligament). It floats, anchored by supra/infrahyoid muscles.

Bones

CT Scan of a Blowout Fracture of the Inferior Wall Diagram

The CT Scan of a Blowout Fracture of the Inferior Wall diagram typically shows orbital floor disruption with herniation of inferior rectus or orbital fat into the maxillary sinus, often…

Organs

Heart Valves

Heart valves ensure one-way blood flow through precisely timed opening and closing. Atrioventricular valvesthe tricuspid on the right and mitral on the lefthang from chordae tendineae anchored to papillary muscles,…

Bones

Types of Synovial Joint Diagram

Types of synovial joints: plane (gliding, e.g., intercarpal), hinge (uniaxial, e.g., elbow), pivot (rotation, e.g., atlantoaxial), condyloid (biaxial, e.g., wrist), saddle (biaxial, e.g., thumb CMC), ball-and-socket (multiaxial, e.g., hip). All…

Medical

Course of the Lacrimal Nerve Diagram

Lacrimal nerve (V1 branch) enters orbit via superior orbital fissure, runs superolateral, supplies lacrimal gland (parasympathetic hitchhike from facial via pterygopalatine ganglion), conjunctiva, upper eyelid skin. It communicates with zygomatic…

Bones

Bony Landmarks of the Costal Surface of the Scapula Diagram

Costal surface of scapula shows subscapular fossa (broad concave area for subscapularis), medial border with superior/inferior angles, costal/vertebral border, and serrated attachments for serratus anterior along medial border.

Cancer

Kaposis Sacroma Lesions

Kaposi's sarcoma lesions appear as purple-red plaques or nodules on skin, mucosa, or viscera, caused by HHV-8 in immunocompromised like AIDS patients, proliferating spindle cells with vascular slits leaking red…

Medical

Origin of the Blood Supply to the Upper Limb Subclavian Vessels Diagram

Origin of upper limb blood supply: subclavian artery (from brachiocephalic right, aortic arch left), continues as axillary (thoracoacromial, subscapular), brachial (profunda brachii), then radial/ulnar in forearm.

Muscles

Medial View of the Tendons of the Muscles in the Post Leg Diagram

Medial view of posterior leg tendons highlights tibialis posterior (deepest, behind medial malleolus, supports arch), flexor digitorum longus (crosses tibialis posterior), flexor hallucis longus (most lateral/deep, under sustentaculum tali), and…