Which of the following is the correct list of tooth anatomy, from the most superficial to the deepest?
A. Cementum, root canal, enamel
B. Enamel, root canal, dentin
C. Dentin, enamel, cementum
D. Enamel, dentin, pulp
E. Crown, enamel, dentin
D. Enamel, dentin, pulp
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The action potential is conducted into a skeletal muscle fiber by
A) motor end plates. B) neuromuscular junctions. C) transverse tubules. D) triads. E) sarcoplasmic reticulum.
A dermatome is a nerve innervating a specific region in the skin.
Answer the following statement true (T) or false (F)
How do blood solutes pass through the walls of continuous capillaries?
A. Through sinusoids B. Through filtration pores C. Through intercellular clefts D. Through thoroughfare channels E. Through fenestrations
Carbon dioxide and water readily combine to form carbonic acid. The change in pH as the acid dissociates can be demonstrated with an indicator dye that changes color at a particular pH. In your physiology lab, you perform this experiment in two beakers containing room-temperature water and indicator, labeled Resting and Exercise based upon the status of the student who exhaled through a straw
into the solution. The Resting student had been sitting at the table for 30 minutes before exhaling while the Exercise student had just finished sprinting up the stairs to class late. A stopwatch was used to measure how long it took for the solutions to change color. The following data were generated by the students. Explain why the time required for the color to change was different between groups, using the word substrate in your answer.
