Mr. Bell presents with the inability to move certain muscles on one side of his face. You ask him to make various facial expressions and find that on his right side he is unable to purse his lips, pull in his cheeks, elevate his upper lip, and smirk. What muscles is Mr. Bell unable to contract?

Mark the following statements as true or false. If the statement is false, correct it to make a true statement.

a. The pectoralis major and coracobrachialis muscles are antagonists.

Predict the location and function of the flexor digitorum profundus muscle based only on its name.

Why do the three parts of the trapezius muscle have three different actions?

Explain why strengthening the levator ani muscle may help improve bladder and bowel continence (voluntary control over urination and defecation).

Mr. Bell presents with the inability to move certain muscles on one side of his face. You ask him to make various facial expressions and find that on his right side he is unable to purse his lips, pull in his cheeks, elevate his upper lip, and smirk. What muscles is Mr. Bell unable to contract?

Ms. Cho presents with muscle pain in the area around her anterior neck and superior chest. She explains that she has had a respiratory infection over the past 2 weeks that made it hard for her to breathe. What is likely causing her muscle soreness? (Hint: Remember that the origin and insertion of some muscles can switch and that one likely has to breathe more deeply with a respiratory infection.)

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

a. A property of all muscle cells is elasticity, which means that the tissue is able to stretch.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

b. The common function of all types of muscle tissue is to generate tension.