Categoría: Fisiología Médica Vídeos

Más que una simple idea, es un Sueño.

Bone Repair

Bone repair

A fractured bone bleeds. Bone repair begins, as over a period of hours blood at the fracture site clots and forms a hematoma. The healing begins as osteoclasts in the area remove dead bone tissue, while fibroblasts penetrate the area and build a fibrocartilaginous callus that bridges the broken bone. Over many weeks osteoblasts transform…
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sound production

Sound production

Phonation is the production of sound by structures in the upper respiratory tract. During exhalation, air passes from the lungs through the larynx. Muscles in the larynx can act to move the arytenoid cartilages that then move the cords. The cords are pushed together and air passes between them in such a way as to…
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nurients absortion

Nutrient absorption

Mechanical and chemical digestion in the stomach results in chyme. Peristaltic waves propel chyme through the pyloric sphincter into the duodenum of the small intestine. Finger-like projections called villi line the interior wall of the small intestine. Most absorption of nutrients from ingested food occurs through these. In the small intestine, nutrients in the chyme…
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The process of hearing involves sound waves creating mechanical motions that cause fluid in the ear to move in waves and trigger nerve impulses that the brain interprets as sound. The outer ear functions to funnel sound waves. The vibrations from these waves reach the middle ear and move the tympanic membrane, often called the…
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