Nerves Innervating the Urinary SystemN
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Nerves Innervating the Urinary SystemN

Nerves innervating the urinary system include sympathetic from T10-L2 inhibiting bladder contraction and promoting sphincter tone for storage, parasympathetic from S2-4 stimulating detrusor and relaxing internal sphincter for voiding, somatic…
Overview of the Cerebrum1 Diagram
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Overview of the Cerebrum Diagram

The cerebrum overview shows two hemispheres divided by longitudinal fissure, with frontal (planning, motor), parietal (sensory, spatial), temporal (auditory, memory), occipital (visual) lobes, plus insula deep in lateral sulcus and…
Heart Wall
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Heart Wall

The heart wall has three distinct layers working together to pump blood tirelessly. The inner endocardium is smooth endothelium over connective tissue, preventing clots and providing a low-friction surface. The…
Medullary Pyramids Diagram
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Medullary Pyramids Diagram

This Medullary Pyramids diagram (likely brainstem) depicts the ventral medulla oblongata with its paired pyramidal tracts—corticospinal fibers descending to decussate at the pyramid level before continuing into the spinal cord…
Parts of the Parietal Pleura Diagram
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Parts of the Parietal Pleura Diagram

Parts of parietal pleura: costal (chest wall), diaphragmatic (diaphragm), mediastinal (mediastinum), cervical (apex above first rib). Reflections form recesses (costodiaphragmatic deepest); fluid accumulates there in effusion.
Histology of StomachN
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Histology of StomachN

The stomach's histology reveals four main layers adapted for mechanical and chemical breakdown of food, starting with a mucosa of simple columnar epithelium rich in goblet cells secreting protective mucus…
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…
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…
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.
Location and History of Tonsils
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Location and History of Tonsils

Tonsils are clusters of lymphoid tissue strategically located at the entrance to the pharynx, forming part of Waldeyer’s ring to sample airborne and ingested antigens. The palatine tonsils sit on…
Aorta
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Aorta

An anatomical rendering of the aorta traces the body’s largest artery from the heart through its major branches. The image highlights sections such as the ascending aorta, aortic arch, and…
Endocrine System
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Endocrine System

The endocrine system acts as the body's slow but steady chemical messaging network, relying on glands scattered throughout the body that secrete hormones straight into the bloodstream to influence distant…
Anatomical Position of the Spleen Diagram
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Anatomical Position of the Spleen Diagram

The spleen lies in left upper quadrant, posterior to stomach, protected by ribs 9-11, with diaphragmatic and visceral surfaces, hilum medially for vessels/lymphatics/nerves. It filters blood, stores platelets, and mounts…