The structure that supports the organ of Corti is the
A) tectorial membrane.
B) basilar membrane.
C) membranous labyrinth.
D) vestibular duct.
E) tympanic membrane.
Answer: B
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The organic component of the matrix in developing or repairing bone is called
A) osteon. B) osteoid. C) hydroxyapatite. D) mesenchymal tissue. E) calcium phosphate.
You are a scientist at a pharmaceutical company. You know that treating Parkinson's disease patients with dopamine has been ineffective in the past, however, your company has recently developed a method to modify drugs that can help them cross the blood-brain barrier. If you modified dopamine in this way, would it make dopamine treatment of Parkinson's more effective?
A. No, because injecting dopamine only makes the substantia nigra down-regulate its own production of dopamine. B. No, because dopamine will be broken down in the body before reaching the brain. C. Yes, a central issue with dopamine treatment is that dopamine cannot cross the blood-brain barrier. D. No, because acetylcholine is the main neurotransmitter that is deficient.
Digestion breaks down complex molecules into simpler molecules. Select the term that best describes this process.
A. Homeostasis B. Negative Feedback C. Anabolism D. Catabolism
The efferent division of the PNS is divided into the ____________________ nervous system, which innervates skeletal muscles, and the ____________________ nervous system, which innervates smooth muscle, cardiac muscle, and glands
Fill in the blank(s) with correct word