Shared Flashcard Set

Details

Respiratory
Anatomy and Physiology of the Respiratory System
23
Anatomy
Undergraduate 4
03/07/2012

Additional Anatomy Flashcards

 


 

Cards

Term
Medullary Respiratory Dorsal Groups
Definition
Stimulate diaphram for inspiration
Term
Medullary Respiratory Ventral Groups
Definition
stimulate intercostal and abdominal muscles for expiration
Term
Pontine/Pneumotaxic Respiratory Group
Definition
Switching between inspiration and expiration
Term
Apnea
Definition
cessation of breathing can be overridden by respiratory center
Term
Hyperventilation
Definition
causes decrease in CO2 leads to vasodilation and decreased BP can lead to fainting
Term
chemical control
Definition
carbon dioxide, oxygen, PH
Term
hypercapnia
Definition
too much CO2
Term
hypocapnia
Definition
not enough CO2
Term
depth of breathing
Definition
determined by how actively respiratory muscles are stimulated by respiratory center
Term
rate of breathing
Definition
determined by how long the medullary dorsal group (inspiration) is active
Term
central chemoreceptors
Definition
in medulla oblongata, connected to respiratory system, sense changes in CO2
Term
peripheral chemoreceptors
Definition
in carotil and aortic bodies, connected to respiratory center by CN 9 & 10, respond to pH changes
Term
decreased oxygen
Definition
carotid & aortic chemoreceptors increase stimulation of respiratory center
Term
hypoxia
Definition
abnormal decrease in oxygen levels
Term
Hering Breuer Reflex
Definition
limits degree of inspiration and prevents over inflation of lungs. Most important in infants, only adults during exercise
Term
Effects of Exercise
Definition
Ventilation increased abruptly at onset of exercise
Ventilation increased gradually after the immediate increase
Term
Anaerobic Threshold
Definition
highest level of exercise without causing significant change in pH. When exceeded lactic acid and pain occurs
Term
Athletic training
Definition
increased vital capacity, tidal volume, gas exchange, and minute ventilation. Decreased residual volume. Greater blood flow through the lungs
Term
Asthma
Definition
coughing, dyspnea, wheezing, chest tightness. Airway inflammation immune response caused by release of interleukins, IgE, and inflammatory cells.
Term
Chronic Obstructive Pulmonary Disease
Definition
Chronic bronchitis and emphysema, decreased ability to force air out of the lungs, smokers, dyspnea, coughing, infections, leads to respiratory failure
Term
Tuberculosis
Definition
caused by mycobacterium tuberculosis, fever, night sweats, weight loss, coughing, spitting up blood, treated with antibiotics
Term
Lung cancer
Definition
leading cause of death in NA, 90% from smoking
Term
carbon monoxide poisoning
Definition
binds to hemoglobin, prevents O2 from binding
Supporting users have an ad free experience!