Which chemical, ingested or synthesized by the body, is necessary for calcium absorption from the intestines?
A. Calcitonin
B. Growth hormone
C. Parathyroid hormone
D. Vitamin D
E. Sex hormones
Answer: D
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Following an automobile accident, a broken rib penetrates into the pleural cavity causing a lung to collapse. What condition is this?
A. Cystic fibrosis B. Hemothorax C. Atelectasis D. Pneumothorax E. Tension pneumothorax
This transports urine from the kidney to the bladder
a) Urethra b) Ureter c) Descending nephron loop d) Renal hilus e) None of these choices
Of the following tissues, which has the least ability to regenerate after injury?
A) stratified squamous epithelium B) bone C) smooth muscle D) adipose E) skeletal muscle
Which statement is true about sodium during resting membrane potential?
A. Sodium crosses the membrane using active transport. B. Sodium is located on the outside of the neuron membrane. C. Sodium is located on the inside of the neuron membrane. D. Sodium can move freely across the neuron cell membrane.