BIO 117 TEST 3 QUESTIONS AND
ANSWERS 100% CORRECT!!!
, A delicate, double- layered serous membrane, called the _______, covers the surface
of each lung. - ANSWER pleura
Which structure does not enter the lung at the hilum? - ANSWER the pleaura
Where does gas exchange occur? - ANSWER alveoli
Gases are exchanged across the walls of the pulmonary _______ in the lungs, and the
oxygen content of the blood rises. - ANSWER capillaries
Relaxation of smooth muscle in the bronchioles during exercise causes ________,
whereas allergic reactions and histamines cause _______. - ANSWER bronchodilation,
bronchoconstruction
All of the following are lower respiratory structures except - ANSWER the pharynx
The trachea is a cartilaginous and membranous tube extending from the lower part of
the ______ to the upper border of the ______ vertebra. - ANSWER larynx, T05
What reduces the tension of the alveoli and allows them to maintain their shape? -
ANSWER surfactant in alveolar fluid
Deoxygenated blood is pumped from the heart's right ventricle and enters the lungs via
pulmonary ________, and oxygenated blood drains through the pulmonary ________ to
the left atrium. - ANSWER arteries, veins
How many alveoli exist in each lung? - ANSWER hundreds of millions
The vocal folds and vestibular folds are controlled by the - ANSWER posterior and
lateral cricoarytenoid muscles
All of the following are nasal cartilages except - ANSWER ethmoid cartilage
The vocal cartilages include the paired ________ and _________ cartilages. -
ANSWER arytenoid, corniculate
What is the primary function of the vestibular folds? - ANSWER they assist in closing
the glottis during swallowing
ANSWERS 100% CORRECT!!!
, A delicate, double- layered serous membrane, called the _______, covers the surface
of each lung. - ANSWER pleura
Which structure does not enter the lung at the hilum? - ANSWER the pleaura
Where does gas exchange occur? - ANSWER alveoli
Gases are exchanged across the walls of the pulmonary _______ in the lungs, and the
oxygen content of the blood rises. - ANSWER capillaries
Relaxation of smooth muscle in the bronchioles during exercise causes ________,
whereas allergic reactions and histamines cause _______. - ANSWER bronchodilation,
bronchoconstruction
All of the following are lower respiratory structures except - ANSWER the pharynx
The trachea is a cartilaginous and membranous tube extending from the lower part of
the ______ to the upper border of the ______ vertebra. - ANSWER larynx, T05
What reduces the tension of the alveoli and allows them to maintain their shape? -
ANSWER surfactant in alveolar fluid
Deoxygenated blood is pumped from the heart's right ventricle and enters the lungs via
pulmonary ________, and oxygenated blood drains through the pulmonary ________ to
the left atrium. - ANSWER arteries, veins
How many alveoli exist in each lung? - ANSWER hundreds of millions
The vocal folds and vestibular folds are controlled by the - ANSWER posterior and
lateral cricoarytenoid muscles
All of the following are nasal cartilages except - ANSWER ethmoid cartilage
The vocal cartilages include the paired ________ and _________ cartilages. -
ANSWER arytenoid, corniculate
What is the primary function of the vestibular folds? - ANSWER they assist in closing
the glottis during swallowing
