NUR 235 Test 3 UPDATED ACTUAL
Questions and CORRECT Answers
thoracic references lines - CORRECT ANSWER - midsternal, anterior axillary,
midclavicular, midaxillary, posterior axillary, vertebral, scapular
pleura - CORRECT ANSWER - serous membranes that form an envelope between the
lungs and the chest wall; reduces friction
costodiaphragmatic recess - CORRECT ANSWER - potential space; when it abnormally
fills with air or fluid, it compromises lung expansion
right lung lobes - CORRECT ANSWER - 3(upper, middle, lower)
left lung lobes - CORRECT ANSWER - 2 (upper and lower)
major functions of respiratory system - CORRECT ANSWER - 1. supplying oxygen to the
body for energy production
2. removing carbon dioxide as a waste product of energy reactions
3. maintaining homeostasis (acid-base balance) of arterial blood
4. maintaining heat exchange (less important in humans)
alveoli - CORRECT ANSWER - gas exchange occurs here
surfactant - CORRECT ANSWER - holds alveoli open to let gas exchange occur;
produced in babies' lungs at about 7 months
diaphragm - CORRECT ANSWER - contracts and pulls down to force air in, relaxes to
force air out
, hypercapnia - CORRECT ANSWER - increase of carbon dioxide in the blood (normal
stimulus to breathe)
hypoxemia - CORRECT ANSWER - decrease of oxygen in the blood
AP/T diameter - CORRECT ANSWER - 1:2, gives elliptical shape to chest
normal respirations - CORRECT ANSWER - 12-20
bradypnea - CORRECT ANSWER - slow breathing, less than 10 breaths a minute
tachypnea - CORRECT ANSWER - rapid breathing, more than 24 breaths a minute
a wider costal angle may indicate - CORRECT ANSWER - chronic breathing problem
thorax and lungs for aging adult - CORRECT ANSWER - shortness of breath, loss of
elasticity in muscles, increased AP diameter
lung cancer - CORRECT ANSWER - 2nd most common cancer in men and women;
leading cause of cancer death; 90% due to tobacco and smoking
tuberculosis - CORRECT ANSWER - airborne disease infecting 1/3 of world's population
asthma - CORRECT ANSWER - A chronic allergic disorder characterized by episodes of
severe breathing difficulty, coughing, and wheezing; more at risk due to poverty, pollution,
secondhand smoke
diaphragmatic excursion - CORRECT ANSWER - normal 3-6cm, athletes 7-8cm
Questions and CORRECT Answers
thoracic references lines - CORRECT ANSWER - midsternal, anterior axillary,
midclavicular, midaxillary, posterior axillary, vertebral, scapular
pleura - CORRECT ANSWER - serous membranes that form an envelope between the
lungs and the chest wall; reduces friction
costodiaphragmatic recess - CORRECT ANSWER - potential space; when it abnormally
fills with air or fluid, it compromises lung expansion
right lung lobes - CORRECT ANSWER - 3(upper, middle, lower)
left lung lobes - CORRECT ANSWER - 2 (upper and lower)
major functions of respiratory system - CORRECT ANSWER - 1. supplying oxygen to the
body for energy production
2. removing carbon dioxide as a waste product of energy reactions
3. maintaining homeostasis (acid-base balance) of arterial blood
4. maintaining heat exchange (less important in humans)
alveoli - CORRECT ANSWER - gas exchange occurs here
surfactant - CORRECT ANSWER - holds alveoli open to let gas exchange occur;
produced in babies' lungs at about 7 months
diaphragm - CORRECT ANSWER - contracts and pulls down to force air in, relaxes to
force air out
, hypercapnia - CORRECT ANSWER - increase of carbon dioxide in the blood (normal
stimulus to breathe)
hypoxemia - CORRECT ANSWER - decrease of oxygen in the blood
AP/T diameter - CORRECT ANSWER - 1:2, gives elliptical shape to chest
normal respirations - CORRECT ANSWER - 12-20
bradypnea - CORRECT ANSWER - slow breathing, less than 10 breaths a minute
tachypnea - CORRECT ANSWER - rapid breathing, more than 24 breaths a minute
a wider costal angle may indicate - CORRECT ANSWER - chronic breathing problem
thorax and lungs for aging adult - CORRECT ANSWER - shortness of breath, loss of
elasticity in muscles, increased AP diameter
lung cancer - CORRECT ANSWER - 2nd most common cancer in men and women;
leading cause of cancer death; 90% due to tobacco and smoking
tuberculosis - CORRECT ANSWER - airborne disease infecting 1/3 of world's population
asthma - CORRECT ANSWER - A chronic allergic disorder characterized by episodes of
severe breathing difficulty, coughing, and wheezing; more at risk due to poverty, pollution,
secondhand smoke
diaphragmatic excursion - CORRECT ANSWER - normal 3-6cm, athletes 7-8cm
