EXAM 2 WSC QUESTIONS WITH
COMPLETE ANSWERS { GUARANTEED
A+}
Surface tension is caused when fluid between adjoining tissues causes the tissues
to stay together. Surface tension within the ________________________________
aids ventilation, while surface tension within _____________________ impairs
ventilation. - ✔✔Pleural membranes; alveoli
The movement of air into and out of the lungs is called ___________. -
✔✔Pulmonary ventilation
Air moves into the lungs because_______. - ✔✔The pressure in the lungs
becomes lower as the volume gets greater.
Chronic bronchitis - ✔✔Long term exposures to irritants cause excess mucous,
inflammation of airways and over time damage to airways
, Emphysema or COPD - ✔✔Air trapped in alveoli from damaged airways cause
breakdown of alveolar walls reducing surface area and gas exchange
Asthma - ✔✔Hypersensitive reaction of airways to irritants, allergens, and
reducing airflow, increasing work of breathing
Lung cancer - ✔✔Cellular mutations, proliferation associated with smoking
Boyles' Law (P1V1 = P2V2) states that if V1 increases, then this will result in
exhalation. - ✔✔False
Without the secretion of surfactant by the type II alveolar cells, the surface tension
in the alveoli would make it harder to breath. - ✔✔True
External respiration refers to gas exchange between the blood and the alveoli. -
✔✔True
F = ΔP/R - ✔✔Pressure gradient and vascular resistance determines blood flow
Arterial Blood Pressure - ✔✔The pressure against the arterial walls at a given
location
TPR - ✔✔A determinant of DBP
Compliance - ✔✔Tissue integrity of the vascular walls, elasticity and recoil
COMPLETE ANSWERS { GUARANTEED
A+}
Surface tension is caused when fluid between adjoining tissues causes the tissues
to stay together. Surface tension within the ________________________________
aids ventilation, while surface tension within _____________________ impairs
ventilation. - ✔✔Pleural membranes; alveoli
The movement of air into and out of the lungs is called ___________. -
✔✔Pulmonary ventilation
Air moves into the lungs because_______. - ✔✔The pressure in the lungs
becomes lower as the volume gets greater.
Chronic bronchitis - ✔✔Long term exposures to irritants cause excess mucous,
inflammation of airways and over time damage to airways
, Emphysema or COPD - ✔✔Air trapped in alveoli from damaged airways cause
breakdown of alveolar walls reducing surface area and gas exchange
Asthma - ✔✔Hypersensitive reaction of airways to irritants, allergens, and
reducing airflow, increasing work of breathing
Lung cancer - ✔✔Cellular mutations, proliferation associated with smoking
Boyles' Law (P1V1 = P2V2) states that if V1 increases, then this will result in
exhalation. - ✔✔False
Without the secretion of surfactant by the type II alveolar cells, the surface tension
in the alveoli would make it harder to breath. - ✔✔True
External respiration refers to gas exchange between the blood and the alveoli. -
✔✔True
F = ΔP/R - ✔✔Pressure gradient and vascular resistance determines blood flow
Arterial Blood Pressure - ✔✔The pressure against the arterial walls at a given
location
TPR - ✔✔A determinant of DBP
Compliance - ✔✔Tissue integrity of the vascular walls, elasticity and recoil
