UNIVERSITY OF IOWA - HUMAN
PHYSIOLOGY - EXAM 4 - CHAPTER 16
EXAM RATED A+ FOR SUCCESS
, Obtaining oxygen, eliminating carbon dioxide, vocalization, acid/base balance -
ANSWERSFunctions of the respiratory system (4)
Vocalization - ANSWERSImportant for the ability to talk
External respiration - ANSWERSProcess of moving oxygen from the atmosphere to the
lungs to the blood to the cells
Internal respiration - ANSWERSIntracellular mitochondria using oxygen to produce ATP
Conducting zone and respiratory zone - ANSWERSAirways consist of
Conducting zone - ANSWERSNo alveoli and no gas exchange occurs in these areas
Trachea, bronchi, bronchioles - ANSWERSStructures of the conducting zone
Respiratory zone - ANSWERSHave alveoli and gas exchange occurs here
Bronchioles, alveolar sacs - ANSWERSStructures of the respiratory zone
Cartilage rings - ANSWERSHold the bronchi open
Bronchioles - ANSWERSSurrounded by smooth muscle to control diameter
Alveoli - ANSWERSThin-walled inflatable sacs
Site of gas exchange
Pulmonary capillaries encircle each
Type I alveolar cell - ANSWERSFlattened epithelial cells that make up alveoli
Type II alveolar cell - ANSWERSReleases surfactant and reduces surface tension and
allows for expansion of the alveoli
Lungs - ANSWERSContain the highly branched airways, alveoli, pulmonary blood
vessels, and large quantities of elastic connective tissue
Thoracic wall (outer chest wall) - ANSWERSRibs and sternum
Diaphragm - ANSWERSLower part
PHYSIOLOGY - EXAM 4 - CHAPTER 16
EXAM RATED A+ FOR SUCCESS
, Obtaining oxygen, eliminating carbon dioxide, vocalization, acid/base balance -
ANSWERSFunctions of the respiratory system (4)
Vocalization - ANSWERSImportant for the ability to talk
External respiration - ANSWERSProcess of moving oxygen from the atmosphere to the
lungs to the blood to the cells
Internal respiration - ANSWERSIntracellular mitochondria using oxygen to produce ATP
Conducting zone and respiratory zone - ANSWERSAirways consist of
Conducting zone - ANSWERSNo alveoli and no gas exchange occurs in these areas
Trachea, bronchi, bronchioles - ANSWERSStructures of the conducting zone
Respiratory zone - ANSWERSHave alveoli and gas exchange occurs here
Bronchioles, alveolar sacs - ANSWERSStructures of the respiratory zone
Cartilage rings - ANSWERSHold the bronchi open
Bronchioles - ANSWERSSurrounded by smooth muscle to control diameter
Alveoli - ANSWERSThin-walled inflatable sacs
Site of gas exchange
Pulmonary capillaries encircle each
Type I alveolar cell - ANSWERSFlattened epithelial cells that make up alveoli
Type II alveolar cell - ANSWERSReleases surfactant and reduces surface tension and
allows for expansion of the alveoli
Lungs - ANSWERSContain the highly branched airways, alveoli, pulmonary blood
vessels, and large quantities of elastic connective tissue
Thoracic wall (outer chest wall) - ANSWERSRibs and sternum
Diaphragm - ANSWERSLower part
