Lecture 6 (Respiratory System) Flashcards
Functions of respiratory system
get oxygen and release CO2
smell more efficiently when you take a deeper breath
deep breath
Bear down on the abdomen (Urinary, bowels and baby delivery)
Cough and sneeze release of air
Alcohol is released by air
Nasal Cavity
Lined with pseduostratifed cilitated columnar epithelium
Cools the air, moisten when dry, warm the air, trap particles
Mouth does none of these
Nerve endings help us smell
Sinuses
Connect to the nasal cavity, drain into the nose
Risk of infection because the blood does not reach these areas easily
Mouth
Stratified squamose eiptheal
Larynx cancer
Ppl that smoke tobacco, related to hot smoke
Drinking and smoking increases this risk even more than the two seperately
Laryngitis
Inflammation of larynx
Puberty
Causes thyroid cartilage
Vocal chords in boys become thicker and longer
Vocal chords in girls, short
Tracheitis and bronchitits
Inflammation
Neck injury
Can collapse the apex of the lung
Pleuritis
Inflammation of pleura
Indentation of the left lung
the aorta
indentation of the right lung
the esphoagus
Pulmonary surfactant
Produce and secreted when 8 months/ birth
Lowers surface tension of the aveoli so they inflate
Insufficient surfactant = respiratory distress in premature children
Hiccup
Irritation of nerves in the diaphram, contracting the diaphram out of sequence
Pneumonia
Diff kinds
Bacterial, viral, fungal
Infections of the lung
death in elderly
Blood will back up in the lungs and infection occurs
Stroke makes you more vulnerable to pnuomia
Blood and mucus fluid in the lungs
Tuberculosis
Bacterial
some a resistant to drugs
bacteria can leave lungs and circulate body, go into the bones or kidney
Asbestosis
Inflammation when breathing in fibers of asbestos insulation
Emphysema
Lung loses elasticity
Barrel chest, deep breath and the lung get stuck
Inflammation in bronchial and this = COPD, chronic obstructive pulmonary disease
SIDs (Up to the first year)
sudden infant death syndrome
Typically die in crib
Not enough surfactant as they get older the lung fails
Allergies and Asthma
Airway are too small and bronchial contact too much
Medicine allows airways to open
