Which nerve carries parasympathetic fibers to the parotid salivary gland?
A. Trigeminal nerve (CN V)
B. Oculomotor nerve (CN III)
C. Glossopharyngeal nerve (CN IX)
D. Facial nerve (CN VII)
E. Vagus nerve (CN X)
Answer: C
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Match the following:
A) Spiral organ (of Corti) B) Vestibule C) Cochlear duct D) Tympanic membrane 1) Houses the spiral organ (of Corti.) 2) The receptor organ for hearing. 3) The central part of the bony labyrinth. 4) A membrane that transmits sound vibrations to the auditory ossicles.
Which of the following is the correct order of structures sperm must penetrate before entering the ovum?
A. Corona radiata, zona pellucida, ovum plasma membrane B. Ovum plasma membrane, zona pellucida, corona radiata C. Zona pellucida, corona radiata, ovum plasma membrane D. None apply.
Damage to the substantia nigra causes a decrease in the neurotransmitter dopamine. This causes a gradual, generalized increase in muscle tone, which is the main symptom of
A) Parkinson's disease. B) rabies. C) Alzheimer's disease. D) myasthenia gravis. E) tetanus.
What is the role of NO (nitric oxide) in the male sex act?
A. dilation of blood vessels in the penis B. activation of a G protein C. secretion of mucous D. contraction of somatic muscles of the urogenital diaphragm