11.5.13 kin 273 lab notesall in book:- Noseo Superior conchao Middle conchao Inferior conchao nasal foldso air goes through and is cleaned- mouth- pharynxo naso-pharynx (behind the nose)o oro-pharnyxo laryngo-pharynx- larynx o epiglottis (flap that covers trachea to prevent food/beverages from going to lungs)o thyroid cartilage (lump when you swallow)o cricoid cartilage- tracheao wind pipe- 2 primary bronchi- 5 secondary bronchi- tertiary bronchio right lung=9 3 lobes (superior, middle, and inferior) the right lung has more because the heart is on the left side of chest, therefore the right side has more spaceo left lung=7-8 has less tertiary bronchi has 2 lobes (superior and inferior)- ^^^cartilage decreases, smooth muscle increases as you go down brochi- bronchi  bronchioles- bronchioles end in alveoli sacs (grapes)o very small bulbso simple squamos epithelial tissueo where all of the gases end upo warmed & cleanedo 1 cell layer thick of walls (like capillaries)o easy diffusiono major artery bringing deoxygenated blood to lungs (pulmonary artery) – passes through alveoli, swap oxygen and carbon dioxide/wasteo blood returns to heart in pulmonary vein- muscle below chest cavity = diaphragm- smokingo kills type II cellso destroys elastic fiber sheeto increases mucus productiono sacs collapse & stack togethero “smoking kills”- cellso Type Io Type II  surfactanto Phagocytes- Homework next week:o Crossword puzzle including terms from respiratory system & include clueso 20 wordso Next week we will swap