Of the following muscles of the head, which one aids in chewing?

A) nasalis
B) temporalis
C) orbicularis oculi
D) masseter


Ans: D) masseter

Anatomy & Physiology

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The atomic number of an atom equals the number of ________, and the atomic weight equals the ________.

A. neutrons; number of protons B. protons; number of protons plus neutrons C. neutrons; number of protons plus electrons D. protons; weight of all the electrons

Anatomy & Physiology

As you work your quads, you notice that the tissue in that part of the leg is pinker (flush with increased blood flow). What has caused this increase in blood flow to the quads?

A. an increase in the oxygen concentration in the tissue. B. an increase in carbon dioxide concentration in the tissue. C. the constriction of precapillary sphincters in the capillary beds of the muscle. D. the overall decrease in the temperature of the muscle tissue as the muscles contract. E. a rise in the pH of the blood and interstitial fluid of the muscle.

Anatomy & Physiology

Which structure sends motor nerve signals to the deep back muscles and receives sensory nerve signals from the skin of the back?

a. posterior root b. posterior ramus c. anterior root d. anterior ramus

Anatomy & Physiology

What structure anchors tendons to the outside of bones plus houses the cells required for bone growth, repair, and remodeling?

A) Medullary cavity B) Articular cartilage C) Periosteum D) Endosteum

Anatomy & Physiology