The opening between each atrium and its ventricle is guarded by the ________, which connects the ventricular side to collagenous tendons, called ________. ________ muscles provide stability for these tendons.
Fill in the blank(s) with the appropriate word(s).
atrioventricular valve, chordae tendineae; Papillary
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Select the element that is not a part of the cytoskeleton
a. inclusions. b. intermediate filaments. c. microfilaments. d. microtubular lattice. e. microtubules.
Which of the following is a lung disease marked by a reduced number of cilia, reduced motility of the remaining cilia, goblet cell hypertrophy and hypersecretion, and thick sputum?
A. Asthma B. Chronic bronchitis C. Atelectasis D. Oat-cell carcinoma E. Emphysema
A fracture of the bone across its long axis is called a ________ fracture
A) comminuted B) greenstick C) compression D) transverse E) spiral
Which of the following provide the greatest surface area for gas exchange?
A) alveolar sacs B) alveoli C) respiratory bronchioles D) alveolar ducts