Suppose you are on a spinning ride at an amusement park. As you whirl around and around with your eyes closed, you sense the rotation by means of which of the following?
A. Cochlea
B. Macula utriculi
C. Macula sacculi
D. Semicircular ducts
E. Organ of Corti
D. Semicircular ducts
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Which lipoprotein transports cholesterol and other lipids to body cells?
A) high-density lipoprotein or HDL B) low-density lipoprotein or LDL C) vitamin D D) cortisol
The structures that connect cardiac muscle cells are
A. intercalated discs. B. motor end plates. C. neuromuscular junctions. D. intervertebral discs.
Compare and contrast the voltage-gated sodium and potassium channels introduced in Chapter 8, with the acetylcholine receptor/channel. What may be confusing to the beginning physiology student trying to understand the ion specificity of the acetylcholine receptor? What type of change in the cell is produced by ion movement through each type of channel?
What will be an ideal response?
What are the attachments of the extensor digitorum longus?
a. Proximal anterior fibula to the dorsal surface of toes two through five b. Distal anterior fibula to the fifth metatarsal c. Proximal anterior tibia to the medial foot d. Middle anterior fibula to the dorsal surface of the big toe