Peristalsis slows in the elderly.
Answer the following statement true (T) or false (F)
True
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Following an automobile accident, a broken rib penetrates into the pleural cavity causing air to accumulate in the space between the visceral and parietal pleura. What condition is this?
A. Cystic fibrosis B. Tension hemothorax C. Pneumothorax D. Hemothorax E. Atelectasis
Skeletal muscle contractions working in conjunction with vein valves help move blood against gravity
Indicate whether the statement is true or false
A neutral atom contains
A. more electrons than protons. B. only neutrons. C. the same number of electrons and protons. D. more protons than electrons. E. None of the choices are correct.
Depolarization of the oocyte plasma membrane occurs when the first sperm attaches to the integrin ?6?1. This is called the
A. slow block to polyspermy. B. acrosomal reaction. C. fast block to polyspermy. D. fertilization. E. spermiogenesis.