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Body Flux 4D anatomical continuum · live database

Decoding the architecture
of the human body

A complete 4D anatomical database mapping every organ system, tissue layer, and structural hierarchy — from chemistry to organism.

12
Organ systems
78
Organs mapped
206
Bones catalogued
640+
Muscles indexed
86B
Neurons modelled

Structural hierarchy

Chemical
Cellular
Tissue
Organ
System
Organism

The 12 integrated systems

Integumentary

  • Epidermis (5 strata) · Dermis (papillary/reticular)
  • Hypodermis · Sebaceous & sweat glands
  • Hair follicles, arrector pili, nails
1.8 m² surface 15% body mass Thermoregulation

Skeletal

  • Axial (80): skull, vertebrae, ribs, sternum
  • Appendicular (126): limbs, pectoral/pelvic girdles
  • Compact/spongy bone · Red/yellow marrow
206 bones 32 teeth Haematopoiesis

Muscular

  • Skeletal (~640) · Smooth (visceral) · Cardiac
  • Epimysium, perimysium, endomysium
  • Fascia · Tendons · Motor units
40% body mass Voluntary control

Nervous

  • CNS: cerebrum, cerebellum, brainstem, spinal cord
  • PNS: 12 cranial nerves, 31 spinal, ganglia
  • Autonomic: sympathetic/parasympathetic/enteric
~86B neurons 120 m/s impulse

Endocrine

  • Hypothalamus · pituitary · pineal · thyroid · parathyroid
  • Adrenals · pancreatic islets · gonads · thymus
  • Hormonal cascades: HPA, HPT, HPG axes
50+ hormones Feedback loops

Cardiovascular

  • Heart: 4 chambers, valves, Purkinje fibres
  • Arteries/arterioles · capillaries · venules/veins
  • Coronary circulation · portal system
5 L/min 60–100 bpm 100k beats/day

Lymphatic & Immune

  • Lymph capillaries, vessels, trunks, ducts
  • Primary: bone marrow, thymus · Secondary: nodes, spleen, MALT
  • B cells, T cells, macrophages, dendritic cells
2–3 L lymph/day Adaptive immunity

Respiratory

  • Upper: nasal cavity, pharynx, larynx
  • Lower: trachea, bronchi, bronchioles, alveoli
  • Type I/II pneumocytes · Surfactant
500 mL tidal volume ~70 m² exchange

Digestive

  • Oral cavity, pharynx, oesophagus, stomach, SI/LI
  • Accessory: salivary glands, liver, gallbladder, pancreas
  • Enteric nervous system · Microbiome
~9 m length 24h transit

Urinary

  • Kidneys: cortex, medulla, nephrons (1M each)
  • Ureters · urinary bladder · urethra
  • Glomerular filtration, reabsorption, secretion
180 L filtrate/day pH balance

Male Reproductive

  • Testes (seminiferous tubules), epididymis, vas deferens
  • Seminal vesicles, prostate, bulbourethral glands
  • Spermatogenesis · Testosterone production
200–300M sperm LH/FSH feedback

Female Reproductive

  • Ovaries (folliculogenesis), uterine tubes, uterus, vagina
  • Mammary glands · External genitalia
  • Menstrual cycle · Oogenesis · Gestation
28-day cycle Endometrial dynamics
78 Organs
12 Systems
206 Bones
640+ Muscles
86B Neurons
4D Flux model
Continuous structural adaptation

Explore further

Dive deeper into longevity science, the Human Repair Index, or propose a research collaboration tied to anatomical systems.