The superior vena cava collect blood from the
A) head, chest, upper limbs, and lower limbs.
B) upper limbs and lower limbs.
C) head and chest.
D) head, chest, and abdomen.
E) head, chest, and upper limbs.
Answer: E
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How long a drug remains stable and effective for use is known as its a. half life. b. shelf life. c. effective life
d. special test life.
Hyperventilation is usually accompanied by a(n)
A. decrease in blood CO2 concentration and a drop in pH. B. increase in blood CO2 concentration and a rise in pH. C. increase in blood CO2 concentration and a drop in pH. D. decrease in blood CO2 concentration and a rise in pH.
Stanley Miller set out to demonstrate an explanation for the origins of organic molecules using a combination of simple organic molecules, heat and periodic burst of electricity through the mixture, ultimately producing what kind of molecules?
A) carbohydrates B) amino acids C) glycoproteins D) nucleic acids E) lipids
Cardioinhibitory centers in the ________ receive input from ________
A) hypothalamus; proprioceptors in the joints B) cortex; proprioceptors in the muscles C) thalamus; chemoreceptors in the medulla oblongata D) pons; baroreceptors in the internal carotid E) medulla oblongata; chemoreceptors in the aortic arch