Complete the following statements:
5. The temporalis acts to_
contracts, the corner of the mouth is drawn upward.
acts to compress the wall of the cheeks when air is blown out of the mouth.
causes the lips to close and pucker.
and platysma help to lower the mandible.
_ pterygoid can close the jaw and can pull it sideways.
_ pterygoid can protrude the jaw, pull the jaw sideways, and open the mouth. _ can close the eye as in blinking. _ can pull the head toward the chest.
_ can pull the head to one side, rotate it, or bring it into an upright position.
11. The muscle used for pouting and to express horror is the
12. The muscle used to smile and laugh is the_
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This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.