18) Diseases that involve the presence of too many white blood cells have been identified as well as diseases that involve too few white blood cells.
A) True
B) False
A) True
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As bones lengthen, what occurs at the zone of hypertrophy in the metaphysis?
A. Osteoblasts deposit matrix and spongy bone is produced. B. Chondrocytes multiply. C. Chondrocytes die and walls between lacunae break down. D. Chondrocytes become larger. E. Cartilage is calcified when minerals are deposited in matrix between lacunae.
The series of membranous channels that surround each myofibril is the
A) sarcoplasmic reticulum. B) sarcoplasm. C) sarcomere. D) sarcolemma. E) endomysium.
How are epithelial tissues classified?
A) Epithelium is classified as either loose or dense. B) Epithelium is classified by the number of cell layers and the shape of the cells. C) Epithelium is classified by the presence or absence of ECM. D) Epithelium is classified as either voluntary or involuntary.
Which of the following does not play a role in thermoregulation of the testes?
A) The dartos muscle B) The cremaster muscle C) The pampiniform plexus of veins D) The bulbospongiosus muscle E) The countercurrent heat exchanger