The pathway of vibrations through the ossicles from the tympanic membrane, or eardrum, to the oval window is:
A) incus, malleus, stapes
B) stapes, incus, malleus
C) malleus, stapes, incus
D) malleus, incus, stapes
E) stapes, malleus, incus
Answer: D) malleus, incus, stapes
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The two longitudinal ridges on the medulla oblongata where many descending fibers cross over are called the ________
A) lateral horns B) pyramids C) olives D) nuclei
Metabotropic receptors:
A. trigger EPSPs whose time course is mainly determined by the RC properties of the cell membrane B. trigger EPSPs that last ~10 msec C. are protein monomers that are coupled to a G protein D. have only one significant action, which is to cause voltage changes (PSPs)
Which of the following metatarsal bones articulates with the cuboid?
A) talus B) metatarsal V C) navicular D) medial cuneiform
The ornithine-urea cycle happens in which two locations?
A) Nucleus, endoplasmic reticulum B) Mitochondrion, cytoplasm C) Cytoplasm, intercellular space D) Ribosome, cytoplasm