The names of muscles often indicate the action of the muscle. What does the term levator mean?
A) The muscle flexes and rotates a region.
B) The muscle is a fixator and stabilizes a bone or joint.
C) The muscle elevates and/or adducts a region.
D) The muscle functions as a synergist.
C) The muscle elevates and/or adducts a region.
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The shape of the lens is controlled by the
A) pupillary sphincter muscles. B) pupillary radial muscles. C) ciliary muscles. D) iris. E) cornea.
The cardiac control center of the ________ coordinates the autonomic innervation of the heart.
A. medulla oblongata B. pons C. midbrain D. cerebrum
High-quality ________ proteins are those that provide all the essential amino acids
A) fibrous B) complete C) globular D) net E) incomplete
The cells of a blastocyst that help form the chorion constitute the
A. blastomere. B. inner cell mass. C. zona pellucida. D. trophoblast.