NPB Midterm III - Respiratory System

Respiratory, digestive, endocrine

276 cards   |   Total Attempts: 182
  

Cards In This Set

Front Back
General function of Respiratory system
Obtain O2 for use by the body's cells and to eliminate the CO2 the body cells produce
Respiratory Quotient (RQ)
Ratio of CO2 produced / O2 consumed
200/250 = 0.8
Respiratory Quotient depends on _____
Foodstuff consumed
Cellular Respiration
Metabolic processes carried out in the mitochondria which use O2 and produce CO2 while deriving energy from nutrient molecules
External respiration
Entire sequence of events in exchanging O2 and Co2 between teh external environment and the cells of the body
Metabolic rate
Oxygen Consumption is __L
1 Liter of oxygen
4 Steps of External Respiration
1. Ventilation/gas echange between the atmopshere and air sacs (alveoli) in the lungs
2. Exchange of O2 and Co2 between air in the alveoli and the blood in the pulmonary capillaries
3. Transport of O2 and CO2 by the blood between the lungs and the tissues
4. Exchange of O2 and Co2 between the blood in the systemic capillaries and tissue cells (Cellular Respiration)
5 nonrespiratory functions of respiratory system
1. route for water loss and heat elimination
2. enhances venous return
3. Helps maintain normal acid-base balance
4. Refends against inhaled foreign matter
5. Removes modifies, activates, or inactivates various materials passing through the pulmonary circulation
3 things the respiratory system consists of
1. respiratory AIRWAYS leading into the lungs
2. Lungs
3. Structures of the thorax involved in producing movement of air through the airways into and out of the lungs
If stabbed in the lungs ...?
Lungs collapse but all the alveolis stay open
Passageway of air
Nasal passages -> mouth -> pharynx -> larynx -> trachea -> cartilaginous ring -> right bronchus -> bronchiole
Adam's apple
Protrusion of the larynx
Vocal folds
2 bands of elastic tissue that lie across the opening of the larynx
Glottis
Laryngeal opening
Pharynx
Common passageway for respiratory and digestive systems