What is the source of most of the parasympathetic innervation of the digestive tract?
A. Enteric nerves
B. Glossopharyngeal nerve
C. Splanchnic nerves
D. Vagus nerve
E. Phrenic nerve
D. Vagus nerve
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Nitric oxide is one of three gaseous chemical messengers and is produced by the enzyme __________
Fill in the blank with the correct word.
In terms of pressure gradients, what is the difference between how frogs fill their lungs and how lizards fill their lungs?
What will be an ideal response?
Which is TRUE regarding fertilization and transport of an egg?
A. Fertilization occurs in the uterus, and must occur within 24-48 hours of ovulation. B. Fertilization can occur any time with 7 days after ovulation, and it generally takes 10-14 days for the conceptus to reach the uterus. C. Fertilization occurs in the fallopian tube, and it takes about 4 days for the conceptus to reach the uterus. D. Fertilization must occur while the follicle is still attached to the ovary, and transport of the conceptus to the uterus takes 24-48 hours. E. Fertilization occurs in the fallopian tube, and the conceptus must reach the uterus within 24-48 hours to implant, or it will die.
If a person stands on his or her heels with their toes pointing up, what muscle action is he or she performing?
A. Dorsiflexion B. Eversion C. Inversion D. Plantar flexion