Unit 5 - Respiratory and Urinary Systems Flashcards
9 functions of respiratory system
Gas Exchange
Communication (speech/crying)
Olfcation (sense of smell. food)
Acid-base balance (via eleiminating CO2)
Blood pressure regulation (angoptensin II that regulates blood pressure)
platelet production (megakaryocytes in lungs)
blood and lymph flow (creates pressure gradients for lymph and venous blood)
blood filtration (dissolve clots)
expulsion of abdominal contents (contraction for urination, defecation and childbirth)
principal organs of respiratory system
nose, pharynx, larynx, trachea, bronchi, and lungs
dead end pathway of air flow in lungs
bronchi - bronchioles - alveoli
conducting zone
zone of respiratory system that serve only for airflow, from nostrils through the major bronchioles; walls to thick for adequrate diffusion of oxygen from the air into the blood
respiratory zone consists of
alveoli and other gas exchange regions of the distal airway
nostrils aka
naris or nares
chonae
posterior nasal apartures
metaboloic waste product of cellular respiration released in lungs
carbon dioxide
terminal electron receptor in cells
oxygen
acidosis
increase of hydrogen ion concentration in the blood from too much carbon dioxide
alkalosis
too little hydrogen ions in blood from lack of carbon dioxide
two parts of nasal septum
septal cartilage (anterior)
perpendicular plate of ethmoid bone (posterior)
epiglottis
apex of larynx, like a reverse uvula / blocks when swallowing
breakdown of the alveoli
emphysema
alveoli
small air sacks where exchanges of co2 and o2
