Activation of ______ receptors usually brings about _______
a. alpha-1, excitation
b. alpha-2, inhibition
c. beta-1, excitation
d. beta-2, inhibition
e. All of the above are correct choices.
E
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Developmental events that occur during the second trimester include
A) keratin and nail production. B) development of sweat glands. C) development of hair and sebaceous glands. D) myelination of the spinal cord. E) All of the answers are correct.
Describe the trophoblast
A) The trophoblast is the cell layer surrounding the blastocyst. B) The trophoblast is the fluid-filled chamber filled with amniotic fluid. C) The trophoblast is a solid ball of cells. D) The trophoblast is the inner cavity within the blastocyst. E) The trophoblast is a pre-embryo at the four-cell stage.
The function of the paranasal sinuses is to lighten the head and give resonance to the voice.
Answer the following statement true (T) or false (F)
Which of the following cranial nerves is responsible for regulating visceral activity?
a) Oculomotor b) Trigeminal c) Spinal accessory d) Facial e) Vagus