Amy is a premed student with a summer job as an animal research technician. One of her duties is to withdraw blood by syringe from the anterior vena cava of pigs, to be analyzed for various hormones. During her training she noticed that most blood samples were very dark in color, but occasionally a sample was bright red. Propose an explanation.
What will be an ideal response?
Amy misdirected her needle to a nearby artery instead of withdrawing blood from the vena cava. Arterial blood is more oxygenated than venous blood, thus not as dark.
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The area of skin that sensory nerve fibers of a particular spinal nerve innervate is called a
A) nerve body. B) myotome. C) dermatome. D) sensory body.
Each of the following is an example of an inorganic compound except
A) water. B) acids. C) bases. D) salts. E) proteins.
"Beans, beans, the musical fruit! The more you eat, the more you 'toot'!" Explain the reason why eating beans in particular causes intestinal gas
What will be an ideal response?
What organ receives blood from the hepatic portal vein?
A) liver B) kidney C) pancreas D) large intestine E) brain