In the thoracic region, the ventral rami of spinal nerves form __________; elsewhere the ventral rami form __________.
A) intercostal nerves, plexuses
B) dorsal nerves, ganglia
C) ventral nerves, splanchnic nerves
D) plexuses, dermatomes
E) ganglia, phrenic nerves
Ans: A) intercostal nerves, plexuses
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To reduce brain swelling by pulling water out of brain cells, a substance can be injected intravenously to increase the osmotic pressure of interstitial fluid. Which of the following properties must this substance lack in order to be effective?
A) permeable to capillary endothelium B) nontoxic to neurons C) permeable to brain plasma membranes D) impermeable to brain plasma membranes E) soluble in water
Blood flow through a capillary is controlled by the
A) vasa vasorum. B) plexus. C) precapillary sphincter. D) thoroughfare channel. E) venule.
What type of tissue is hematopoietic tissue?
a. epithelial tissue b. connective tissue c. muscle tissue d. nervous tissue
Increased levels of which of the following hormones would not result in increased blood fatty acid levels?
a. glucagon b. growth hormone c. insulin d. epinephrine e. cortisol