BIOL 115 Lecture Notes - Lecture 22: Alveolar Cells, Pulmonary Pleurae, Intercostal Muscle
Document Summary
Feedback pathway: parts of it are activated by intrinsic, then this 1 shuts down! When tissue heals and no clot is needed anymore, fibrin is cut in 4 places by enzyme plasmin, so then fibrin starts releasing clot (cleared by tissues) During blood draws, we don"t want clotting in tube, so. Chelate (ca2+): so it won"t be available for use! Activate antithrombin ii (thrombin is a coagulation factor) Vitamin k is required to produce vii, x, prothrombin, and ix. Moving air in & out of the body. 1&2 are external respiration, 2&3 are internal respiration. Can functionally divide the respiratory system into 2 zones. Nose, pharynx, larynx, trachea, bronchi, bronchioles, terminal bronchioles. Low pitch shortens vocal cord, higher lengthens & adds tension to cord (thinner) Older and less stretchiness makes scar tissue gradually prevent higher pitches. Gas exchange takes place (o2 & co2) Bm is fused to bm of capillary cells (respiratory membrane)
