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Thumbs

Thumbs

14 The thumb, unlike other fingers, is opposable, in that it is the only digit on the human hand which is able to oppose or turn back against the other four fingers, and thus enables […]

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Skin

Skin — Integumentary System

19 ‘Your skin is amazing, Vaseline commercial: waterproof barrier, defense against disease, adjusts to surroundings, constantly growing and replacing itself, heals itself, all 800 million cells — do you see skin the way we do? […]

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System & Parts

About Systems/Parts

5 The Systems/Parts category is designed to help understand the characteristics of specific physiological systems or body parts.  The relationship of each system or body part is described in its association with exercise, fitness, structure, […]

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Visual Perception

About Visual Perception

5 The visual perception section develops understanding of visual perception in human performance. Visual perception is closely involved with mental processing and reaction to events. UNDER CONSTRUCTION