Which muscle contracts when one smiles?
A. Frontalis
B. Zygomaticus major
C. Depressor anguli oris
D. Orbicularis oris
E. Buccinator
B. Zygomaticus major
Anatomy & Physiology
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The AV node delays the transmission of action potentials slightly to allow ________.
Fill in the blank(s) with the appropriate word(s).
Anatomy & Physiology
Removal of the seminal glands would result in semen
A) that lacked sperm. B) with a higher-than-normal pH. C) with less fructose. D) with no lubricating fluids. E) that lacked androgens.
Anatomy & Physiology
The Z line of the sarcomere is characterized by
a. overlapping thin and thick filaments. b. only thick filaments. c. only thin filaments. d. a very dark coloration. e. none of these answers.
Anatomy & Physiology
Neurons can conduct messages faster if they have
Anatomy & Physiology