Hair cells of the utricle and saccule are clustered in the oval ________.
Fill in the blank(s) with the appropriate word(s).
maculae
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When smooth muscles in the walls of the arteries are stimulated to contract,
A) viscosity increases. B) peripheral resistance decreases. C) blood pressure decreases. D) blood pressure increases.
Which of the following does NOT directly affect the rate of diffusion of a substance across a membrane?
a. concentration gradient b. cellular volume c. permeability of the membrane to the diffusing substance d. surface area across which diffusion is taking place e. molecular weight of the diffusing substance
The mammary glands of the breasts are modified ______ sweat glands
Fill in the blank with correct word.
Match each of the terms with its definition or description.
a. pia mater b. dura mater c. cranial nerves d. spinal nerves e. arachnoid mater f. dermatome g. parasympathetic nervous system h. sympathetic nervous system i. acetylcholine j. norepinephrine 1. _____ Skin surface that is supplied by a single spinal nerve 2. _____ Outermost and toughest of the meninges 3. _____ 31 pairs of these make up part of the peripheral nervous system 4. _____ “Cobweb”–like part of the meninges 5. _____ Regulates the “fight or flight” response 6. _____ Thin innermost layer of the meninges 7. _____ 12 pairs of these make up part of the peripheral nervous system 8. _____ Neurotransmitter that is released from the postganglionic axons of the parasympathetic nervous system 9. _____ Sometimes called the craniosacral nervous system 10. _____ Neurotransmitter that is released from the postganglionic axon or the sympathetic nervous system