The interlobular septa divide the lungs into
A) lobes.
B) pulmonary lobules.
C) alveolar sacs.
D) vital capacity and residual volume.
E) visceral pleura and fibrous trabeculae.
B
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Extrasystole of the heart means that it
a. beats too slowly b. fills with too much blood c. has a complete block d. loses blood e. produces a premature beat
Explain the difference between a meatus and a foramen
A) A meatus is a canal through a bone, whereas a foramen is a hole in a bone. B) A meatus is a fissure in a bone, whereas a foramen is a hole in a bone. C) A meatus is an indentation in a bone, whereas a foramen is a depression in a bone. D) There is no difference, they both refer to openings in bone.
Which nutrient important to the blood allows for the hemoglobin in red blood cells to carry oxygen?
A. Iron B. Folic acid C. Copper D. Vitamin B12
Isolated areas of lymphoid follicles found in the intestinal mucosa are called ________.
A. lacteals B. Peyer's patches C. germinal centers D. Brunner's glands