Anatomy System – Human Body Anatomy diagram and chart images

Top Anatomy Diagrams

Overview of the Dorsal Column Medial Lemniscal Pathway 1 Diagram

Overview of the Dorsal Column Medial Lemniscal Pathway Diagram

Dorsal column-medial lemniscus pathway carries fine touch, vibration, proprioception: ascends ipsilaterally in fasciculus gracilis/cuneatus, synapses in medulla nuclei, crosses as internal arcuate fibers to medial lemniscus, to thalamus, then cortex.

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Medial and Lateral Pectoral Nerve Diagram

Medial pectoral nerve (C8-T1) pierces pectoralis minor to supply it and pectoralis major sternocostal head; lateral pectoral nerve (C5-C7) supplies clavicular head of pectoralis major. Both from brachial plexus.

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Borders of the Triangular Interval Diagram

The Borders of the Triangular Interval diagram outlines this posterior arm space bounded by teres major superiorly, long head of triceps medially, shaft of humerus laterally, with radial nerve and…

Muscles

First Layer of Plantar Muscles Diagram

First layer of plantar muscles: abductor hallucis (medial), flexor digitorum brevis (central), abductor digiti minimi (lateral). They arise from calcaneal tuberosity, support medial/longitudinal arch; medial/lateral plantar nerves supply.

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Positive Trendlenburg Test Diagram

Positive Trendelenburg test: pelvis drops on unsupported side during single-leg stance due to weak gluteus medius/minimus (contralateral hip drop). Indicates superior gluteal nerve lesion, hip abductor weakness, or hip joint…

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Net Filtration PressureN

Net filtration pressure in glomerulus drives plasma ultrafiltrate formation, calculated as glomerular hydrostatic pressure minus capsular hydrostatic and oncotic pressures, typically around 10 mmHg favoring outflow, regulated by afferent and…

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Anatomical Course of the Subclavian Artery Diagram

Subclavian artery course: right from brachiocephalic, left from aortic arch, three parts by scalenus anterior (pre-, post-, inter-). Branches: vertebral, internal thoracic, thyrocervical trunk, costocervical, dorsal scapular.

Bones

The Subtalar Joints and Ligament Diagram

Subtalar joint (talocalcaneal) allows inversion/eversion; ligaments: interosseous talocalcaneal (strongest, in sinus tarsi), medial/lateral talocalcaneal, cervical (stabilizes). It works with transverse tarsal joint for foot flexibility.

Bones

Articulating Surfaces of the Acromioclavicular Joint Diagram

Acromioclavicular joint surfaces include lateral clavicle (flattened) and medial acromion (oval). Stabilized by acromioclavicular ligament superiorly and coracoclavicular (trapezoid/conoid) inferiorly.

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Structure of a Vein Wall Diagram

The Structure of a Vein Wall diagram layers out the typical three-part construction: a thin tunica intima with endothelium for smooth flow, a thicker tunica media with some smooth muscle…

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Course of the Long Thoracic Nerve Diagram

The long thoracic nerve (C5-C7) descends superficially on serratus anterior, supplying it for scapular protraction/rotation. Injury causes winged scapula and difficulty raising arm overhead.

Bones

Anatomy of the Frontal Bone Anterior Diagram

Frontal bone anterior anatomy shows squamous part (forehead), orbital plates (roof of orbit), nasal part (bridge nose), frontal sinuses, supraorbital notch/foramen, glabella, superciliary arches.

Organs

Internal Structure of the Kidney Diagram

Internal kidney structure shows cortex (granular, glomeruli/cortical nephrons), medulla (pyramids with collecting ducts), renal columns between pyramids, minor/major calyces, pelvis, and ureter exit at hilum.

Organs

Microscopic Anatomy of Liver

Microscopic anatomy of liver shows hexagonal lobules centered on central vein, with hepatocytes in plates radiating outward, sinusoids lined by fenestrated endothelium and Kupffer macrophages between, portal triads at corners…

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Renin Aldosterone Angiotensin

Renin-angiotensin-aldosterone system activates on low renal perfusion sensed by juxtaglomerular cells releasing renin converting angiotensinogen to angiotensin I, ACE in lungs to II potent vasoconstrictor raising pressure, stimulating aldosterone from…

Overview of Parasympathetic Innervation Diagram

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