Respiratory Flashcards
External Respiration
The exchange of gases between the air in the alveoli of the lungs and the blood in the capillaries of the lung
The exchange of gases between the air in the alveoli of the lungs and the blood in the capillaries of the lung
External Respiration
the exchange of gases between the blood in the capillaries at the tissues and the interstitial fluid
Internal Respiration
Internal Respiration
the exchange of gases between the blood in the capillaries at the tissues and the interstitial fluid
The cells in the body consume _____ during ______ and generate CO2 as a waste product
The cells in the body consume O2 during aerobic cellular respiration and generate CO2 as a waste product
Nasal Mucus is secreted by
Goblet Cells
Goblet cells secrete
Nasal Mucus
What are the five functions of the nose?
a. detects odors
b. filters incoming air
c. humidifies incoming air
d. resonating chamber for sound
e. warms incoming air
The three cell types within alveoli
Squamous alveolar, Great alveolar, Alveolar macrophages
Surfactant is secreted by
Great Alveolar cells
The respiratory membrane components
alveolar squamous epithelial cell, capillary endothelial cell, and the basement membrane
The lungs are kept moist by
surfactant that is released into the alveoli
Only gasses can be exchanged within the lungs because
Alveolar macrophages inhibit particles and pathogens from getting by
Gasses at external respiration dissolve into
surfactant
The wall of the thoracic cavity is covered with ______ pleura while the surface of the lungs is covered with ______ pleura
The wall of the thoracic cavity is covered with parietal pleura while the surface of the lungs is covered with visceral pleura
The ______ and _____ raise the ribs during deep breathing
The scalenes and external intercostals raise the ribs during deep breathing
The _____, ______ and ______ muscles are engaged during extremely forceful inhalations
The pectoralis minor, sternocleidomastoid and erector spinae muscles are engaged during extremely forceful inhalations
Inhaling Muscles
The diaphragm, pectoralis minor, sternocleidomastoid, erector spinae muscles, scalenes and external intercostals
Forceful exhalation requires the contraction of the _______ to depress the ribs while contraction of the ______ increases abdominal pressure and forces the diaphragm upward.
Forceful exhalation requires the contraction of the internal intercostal muscles to depress the ribs while contraction of the abdominal muscles increases abdominal pressure and forces the diaphragm upward.
When tissues are metabolically active…
Partial pressure is lower, More oxygen will unload from Hb, Temperature is increased, and CO2 levels are higher, PH is more acid
Hb will unload oxygen more readily when
tissues are metabolically
