Net Filtration PressureN
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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…
Anatomical Course of the Subclavian Artery Diagram
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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.
The Subtalar Joints and Ligament Diagram
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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.
Structure of a Vein Wall Diagram
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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…
Course of the Long Thoracic Nerve Diagram
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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.
Anatomy of the Frontal Bone Anterior Diagram
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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.
Internal Structure of the Kidney Diagram
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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.
Microscopic Anatomy of Liver
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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…
Renin Aldosterone Angiotensin
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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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Overview of Parasympathetic Innervation Diagram

Parasympathetic innervation originates from cranial nerves (III, VII, IX, X) and sacral S2-S4. Preganglionic fibers synapse in terminal ganglia near targets for “rest and digest” functions: pupil constriction, salivation, lacrimation,…
Anatomical Position Cerebellum Diagram
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Anatomical Position Cerebellum Diagram

The cerebellum in anatomical position sits in the posterior cranial fossa below the tentorium cerebelli, posterior to the brainstem, with superior surface facing upward toward occipital lobes, inferior surface resting…
Development of the Palate Diagram
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Development of the Palate Diagram

The development of the palate begins with primary palate formation from medial nasal prominences (intermaxillary segment) anteriorly, followed by secondary palate from lateral palatal shelves of maxillary prominences. Shelves grow…
Parts of the Male Urethra. Diagram
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Parts of the Male Urethra Diagram

Male urethra parts: prostatic (through prostate), membranous (shortest, through urogenital diaphragm), spongy/penile (longest, through corpus spongiosum to meatus). It conducts urine/semen.