Like veins, lymphatic vessels rely on skeletal muscle and respiratory pumps to help propel fluid through them
Indicate whether this statement is true or false.
TRUE
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Answer the following statements true (T) or false (F)
1. The prostate atrophies as a man ages, and it usually causes no health problems. 2. The hormone oxytocin combines with enzymes in semen to enhance sperm motility. 3. When a couple is having difficulty conceiving a child, it is necessary to investigate the sperm of the male. 4. The amount of testosterone and sperm produced by the testes is dependent on the influence of FSH alone. 5. Ovarian follicles contain mature eggs.
Which type of cell forms bone?
A. Osteoblast B. Osteoclast C. Fibroblast D. Osteocyte E. Chondroblast
Each kidney contains functional units called ______________
Fill in the blank(s) with correct word
Which statement is true regarding the action of an oligodendrocyte?
A. A neurolemmocyte attacks pathogens. B. An oligodendrocyte is responsible for forming part of the blood-brain barrier. C. Oligodendrocytes function only within the PNS. D. Each oligodendrocyte can form a myelin sheath around many axons simultaneously. E. Each oligodendrocyte can wrap only a 1-mm portion of a single axon.