System

The adult skeleton has 206 bones: 80 axial skull, vertebral column, ribs, sternum and 126 appendicular limbs, girdles. Bone types ...

The vertebral column has 33 vertebrae: 7 cervical, 12 thoracic, 5 lumbar, 5 sacral fused, and 4 coccygeal fused. It provides struc...

The muscular system has over 600 muscles, comprising 40 to 50 percent of body weight. Three types: skeletal voluntary, striated, a...

The circulatory system has approximately 100,000 km of blood vessels. Arteries carry blood away from the heart, with thick walls o...

The lymphatic system returns approximately 3 liters of interstitial fluid to the bloodstream daily, preventing edema. Lymph capill...

The coronary arteries supply the heart muscle myocardium with oxygenated blood, delivering approximately 250 mL per minute 5 perce...

Joints articulations connect bones. Three types: synarthroses immovable skull sutures, amphiarthroses slightly movable symphysis p...

The twelve cranial nerves emerge directly from the brain and brainstem. I Olfactory smell from olfactory mucosa to olfactory bulb....

The autonomic nervous system is the part of the peripheral nervous system that regulates bodily functions largely without consciou...