When a fracture begins to heal, one type of bone cell moves into the fracture site and tears down the damaged bone tissue. Which of the following does this?
A. osteoblasts
B. osteocytes
C. osteoclasts
D. osteons
E. matrix cells
C
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All of the following are true of olfactory pathways except which one?
A) They project first to the occipital lobes and then to the thalamus. B) Neurons from the olfactory epithelium synapse in the olfactory bulb. C) Information flows to the olfactory cortex, hypothalamus, and limbic system. D) They reach the forebrain without first synapsing in the thalamus. E) The limbic system-olfactory pathway connection means that there are close ties between experiences and memories with smell.
A patient who has been both vomiting and having diarrhea is losing all of the following except ________ from his body
A) water B) sodium C) bicarbonate ion D) hydrogen ion E) protein
Which of the following could explain a gradual decrease in erythropoietin (EPO) levels?
A. A patient with acute kidney disease B. A patient in recovery from surgery with substantial blood loss C. An endurance athlete traveling from sea level to the mountains for a month of training D. An inactive person beginning an exercise program
The interphase period of cell division has ________ distinct phases.
A. 2 B. 3 C. 4 D. 5 E. 6