Fibrous connective tissue reducing elasticity of lungs is seen in
A. emphysema.
B. asthma.
C. pulmonary edema.
D. pneumothorax.
Ans: A. emphysema.
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In the autorhythmic cells, the ________ channels open when the cell membrane potential is -60 mV. These channels are permeable to ________ and ________.
Fill in the blank(s) with the appropriate word(s).
The parietal branches of the thoracic aorta include the
A) mediastinal arteries. B) superior phrenic arteries. C) superior thoracic and intercostal arteries. D) intercostal arteries. E) pericardial arteries.
Which of the following is not a component of the villus?
a. terminal lymphatic vessel b. capillary network c. epithelial cell covering d. central lacteal e. none of these
A perpendicular plate is a feature of the ________ and ________ bones.
A. palatine; ethmoid B. maxilla; zygomatic C. nasal; lacrimal D. ethmoid; sphenoid E. palatine; lacrimal