What influences the appearance and function of skeletal muscles?
A. Presence of perimysium around fascicles
B. Presence of endomysium around muscle cells
C. Number of muscle cells in a motor unit
D. Pattern in which fascicles are arranged
Answer: D. Pattern in which fascicles are arranged
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Maturation of sperm occurs in the
A. ejaculatory duct. B. seminal vesicles. C. epididymis. D. prostate gland. E. bulbourethral glands.
You are working for an educational video company and you've been asked to go to the hospital imaging center to obtain video of segmentation. The imaging center technician asks you where in the GI tract she should image and when during digestion? You tell her that to obtain the best video of segmentation she should record
A. the small intestine as chyme moves past the pyloric sphincter. B. the esophagus during swallowing. C. the stomach during digestion of a meal. D. the large intestine during fecal compaction.
Which of the following structures does not help to increase the absorptive surface area of the small intestine?
a. villi b. plicae c. lacteal d. microvilli
What is the correct order of passageways, from proximal to distal?
A) terminal bronchiole, alveolar duct, respiratory bronchiole B) terminal bronchiole, respiratory bronchiole, alveolar duct C) respiratory bronchiole, terminal bronchiole, alveolar duct D) alveolar duct, respiratory bronchiole, terminal bronchiole