Which layer of the digestive tract is responsible for the peristaltic waves that propel materials from one portion to another?
A) muscularis externa
B) serosa
C) submucosa
D) mucosa
Ans: A) muscularis externa
Anatomy & Physiology
You might also like to view...
If the hyoid bone is not attached to another bone why is it so important?
What will be an ideal response?
Anatomy & Physiology
________ muscle fibers pull in different directions, permitting different actions depending on stimulation
A) Convergent B) Parallel C) Straight D) Pennate E) Circular
Anatomy & Physiology
Which bone bears the greater and lesser cornua?
A. Incus B. Hyoid C. Mandible D. Stapes E. Maxilla
Anatomy & Physiology
Which of the following organs is protected by the rib cage?
A) lungs B) thymus C) heart D) All of the answers are correct. E) None of the answers are correct.
Anatomy & Physiology