Wednesday, March 2, 2011

3/2/11 Class Notes!

Respiratory System
Today’s Lecture
History
                                Hippocratic treatments of respiratory diseases
Terms
                                Anatomical terms, symptomatic and diagnostic terms
Upper vs. Lower respiratory tract
                Conducting passages
                                Upper respiratory tract, nasal cavity pharynx, larynx
                                Lower respieratory tract trachea, primary bronchi, etc.
Anatomical terms
                Glottis (gr. Mouth of windpipe)
                Epiglottis-(epi(upon)-glottis) closes off the trachea
NB. Glottis-ulimately derived from the greek word for tongue (glotta)
Trachea
                Gr. Trakheia arteria lit. rough airpipe
NB. Trachy-rough; thachyphonia(rough, horse voice), dysphonia(difficult to speak with a horse voice)
                Artery is a carrier of air.
Anatomical terms: carina(ridge or anatomical spine)
                Left and right bronchi
Anatomical Terms
                Carina-L. keel of a boat-structure with a projecting central ridge
                                Argo navis (Jason and the argonots)
                Stroma-foundation-supporting tissues of an organ. i.e. connective tissue
                                Gr. Stroma-anything spread out for lying or sitting on. i.e. like a bed covering
                Parenchyma-functional tissue of an organ
                                Gr. Parenchuma-anything poured in beside
Symptomatic terms
                -pnea
                Eu-good
                Brady-slow
                Trachy-fast        
                Hypo-shallow
                Hyper-deep
                Dys-difficult
                A-lack of
                Ortho-upright
Breathing sounds
                Crackles/rales (fr. Rrattle)
                                Intermittent, nonmusical and brief
                                Poping/Velcro sound
                Wheezes/Rhonchi (gr. Rhoncus-a snore)
                                Continuously during inspiration or expiration
                                High pitched and have a shrill or squeaking quality
                Stridor (l. stridor-whistling cry)
                                High pitched harsh sound heard only during inspiration
Symptomatic: lung sounds
                Crackles-sound 1
                Course rales
                                Indicative of bronchiectasis or atelectasis
                Sound 2-stridor
                Stridor
                                Obstruction of the upper airway (trachea or larynx)
                Sound 3-wheezes/rhonchi
                Wheezes/rhonchi
                                Asthma or emphysema
                Sound 4-darth vader
General symptomatic terms
                You notice your patient’s voice is hoarse and he tells you that he has been spitting up blood.  What are the medical terms for these symptoms?
                Hemoptysis—ptysis=expectoration/spitting
                Dysphonia-phon/o=voice (gr. Phone-voice or sound)
Ancient treatment of hemoptysis
                Blood is getting in the lungs so they would tie off all limbs. 
Diagnostic terms
                Pleural effusion
                                Pyothorax=empyema
                                Hemothorax(blood in the pleural space)
                                Chylothorax(cial(lymph) in the pleural space)
                                Hydrothorax(seris fliud in the pleural space)
Hippocratic treatment of empyema
                Listen, take a metal tube and cut a whole under the rib and drain out, then pulled out the metal tube and let heal by itself.
Pneumothorax=collapsed lung
Hippocratic fallen lung
                 A is how we think of them
                B is how the hippocratics looked at it
                C  is why they though the rubbery sound happened.
                Animals have small lungs so they thought we have small lungs.
                Would blow up the lungs to get it to move back to the correct place
Restrictive vs. obstructive pulmonary disease
                Restrictive: restrictive pulmonary diseases cause lungs to lose their ability to hold as much air as usual
                Obstructive: decreased expiratory flow
                Normal, pneumoconiosis(restrictive), emphysema(obstructive)
Pneumoconiosis
                Healthy lung vs. lung suffering from pneumoconiosis
Diagnostic Terms
                Asthma (gr. Panting)
                                Status asthmaticus(status-condition(chronic) status-standing)
Emphysema(gr. Emphysan-to inflate)
Cystic Fibrosis
                Cystic fibrosis-(cyst/o-gr. Kystis-bladder)Fibr/o-l-fibra-thread
                                Mucus blocks air sacs (albeoli) in the lungs
                                Mucus blocks pancreatic ducts
                                Pancreatic duct
Pulmonary edema
                Accumulation of fluid in the air sacs (aveoli) in the lungs
Diagnostic terms
                Atelectasis
                                Atel/o=imperfect, incomplete
                Tele-distance     tel/o, teleo-end, completion
Airless portion of the lung.
Pulmonary tuberculosis
                Tubercle(l. tuberculum-little swelling)
                Rounded spot on the bone, small nodular lesion, grandular tissue(granuloma)
Caseous necrosis (ger. Kase) cheese like wasting away of tissue

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