The type of cell connection that serves as a permeability barrier is a ________.
A. hemidesmosome
B. gap junction
C. intercalated disc
D. tight junction
E. desmosome
Answer: D
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Tonic receptors
A) are quick to adapt to a particular stimulus intensity. B) are attune to changes in a parameter, not the extent of that change. C) slowly decrease the frequency of action potentials generated to a constant stimulus. D) will always decrease to the point where no action potentials are generated.
Which of these is NOT a muscle that can flex the knee?
a. biceps femoris b. vastus medialis c. gastrocnemius d. gracilis e. sartorius
The mucous membrane on the surface of the eye is called the:
a. cornea b. sclera c. conjunctiva d. gingiva
All of the following describe an anatomical region except which one?
A. Plantar B. Inguinal C. Sagittal D. Appendicular