Answers.
What is one of the most common pathologic conditions? - Correct Answer Respiratory
disease
_______ and ________ are among the top 10 chronic conditions that cause restricted
activity - Correct Answer Asthma
Chronic obstructive pulmonary disease (COPD)
An inflammation of the lungs caused by bacterial, viral, or fungal infections or infections
with other microorganisms
One of the most common fatal illnesses in developing countries
Accounts for 6% of patient deaths in the US - Correct Answer Pneumonia
Tiny saclike units in which gas exchange occurs - Correct Answer Alveoli
Carries oxygen to the lungs - Correct Answer Trachea or windpipe
The ridgelike point at which the tracheal cartilage bifurcates
Roughly the level of the 5th intercostal space - Correct Answer Carina
In adults, which mainstem bronchi typically branches at a less acute angle?
Aspirated foreign bodies often end up here - Correct Answer Right mainstem bronchi
The right and left mainstem bronchi continue to branch into the _______ - Correct Answer
Lobes of the lungs
The right lung has _______ lobes - Correct Answer Three
The left lung has _______ lobes - Correct Answer Two
Gas exchange is most efficient in the alveoli, but a significant amount of gas is also
exchanged across the ________ - Correct Answer Respiratory bronchioles
, Bronchioles lack ________, have no protective blanket of ________, and are not shielded
by _______ - Correct Answer Cilia
Mucus
Smooth muscle or more rigid structures
The functional portions of a gland or solid organ - Correct Answer Parenchyma
The nonstriated involuntary muscle found in vessel walls, glands, and the GI tract -
Correct Answer Smooth muscle
Bronchoconstriction occurs when _________ - Correct Answer Smooth muscle narrows
larger airways
Wheezing that resolves with administration of bronchodilator medication was probably
caused by ____________ - Correct Answer Constriction of the smooth muscle
Wheezing that is NOT resolved by bronchodilator medication may have been caused by
__________ - Correct Answer A pathologic condition deeper in the tracheobronchial tree
The terminal airways and alveoli include branches ______ through ________ of the
tracheobronchial tree, the so-called ___________ - Correct Answer 16
24
Terminal bronchioles
The entire surface of the alveoli and terminal bronchioles is covered in _________ and
participates in gas exchange - Correct Answer Capillaries
What is contained in the mediastinum? - Correct Answer Heart and large blood vessels
Large conducting airways (trachea and mainstem bronchi)
Blood flows from the heart to the lungs via the ________, which branches into smaller
arteries, arterioles, and finally capillaries - Correct Answer Pulmonary artery
The mechanical process of moving air into and out of the lungs in two separate phases:
inhalation (inspiration) and exhalation (expiration) - Correct Answer Ventilation