BIOM 101 Lecture Notes - Lecture 15: Surface Tension, Long Bone, Ovarian Cancer
Document Summary
Strain deformation over original length, change in length/ length no units. Yield point/limit point of transition b/t elastic deformation and plastic deformation on curve. Spongy bone most prominent in vertebrae and ribs. Body puts down bone where needed for structural support. Surround organs to provide structural integrity and protect them from damage. Cells sparsely distributed w/i ecm, ecm provides mech properties of tissue. Intrapleural (ip) space small, fluid filled space b/t chest wall & lungs, indirectly connects the lung to the chest wall mechanically. Outward chest wall recoil equal and opposite to inward lung elastic recoil to keep the lung inflated. Increase in intrapleural space volume= decrease in intrapleural pressure (pip) Produced late in gestation, so pre-(cid:373)e"s te(cid:374)d to de(cid:448)elop collapsed lungs quickly. Law applies to hollow cylinders, like blood vessels, T=tension in vessel wall, surface tension (force/unit length) Change in pressure= pressure difference across vessel wall (pin pout )
