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respiratory system (anatomy of the respiratory tract (nasal cavity-…
respiratory system
anatomy of the respiratory tract
nasal cavity- increase the surface area available to warm, moisturize, and filter
nose/ nostrils- entrence, air is filtered
sinuses- air filled spaces within the maxillary
pharynx- common passageway for air and food
glottis- triangular slit
epiglottis
trachea- mucous membrane to trap
bronchial tree- lobar bronchi, segmental bronchi
alveolar ducts
alveolar sacs
alveoli
organs of the respiratory system and location lower respiratory track
trachea
lungs
alveoli
bronchi
bronchioles
definitions of lung capacity terminology
inspiration capacity =TV+IRV
vital capacity = TV+IRV+ERV
total lung capacity = sum of all volumes
functional residual capacity=FRV+RV
internal and external respiration
external intercostal- conraction moves ribs and sternum upward, increasing the size of thoracic cavity
internal respiration- oxygen moves out of the blood in the capillary and into tissue cells
internal respiration- carbon dioxide moves from tissue cells into capillary blood
external respiration diffusion passive movement down a concentration gradient
definitions of lung capacity terminology
dead space volume
residual volume
expiratory reserve volume
inspiratory reserve volume
organs of the respiratory system and location
upper respiratory tract
pharynx
nose
larynx
breathing mechanism (physiology)
expiration: movement of air out of lungs
inspiration: movement of air into lungs
diaphragm- flattens during inspirational increasing the size of thoracic cavity
disorders of the respiratory system
lung cancer- uncontrolled cell growth and development of tumors in lungs
pneumonia- viral infection of the lungs
asthma- caused by chronically inflamed, hypersensitive brachial passages caused by allergens
main functions
gas exchange: supplies oxygen and removes carbon dioxide
distribution fair: filters, warm, humidifies air
differences between the right and left lung and right and left
primary bronchi
right lung
visceral pleura
right main bronchus
inferior (lower) lobar bronchi
superior (upper) lobar bronchi
middle lobar bronchus
parietal pleura
left lung
visceral pleura
pleural cavity
left main bronchus
inferior (lower) lobar bronchi
superior (upper) lobar bronchi
parietal pleura