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?
10. Muscles
Muscle Actions
10. Muscles
Muscle Actions
- Open Question
- Multiple Choice
True or False: if false, choose the answer that best corrects the statement.
A fixator works to stabilize the insertion of the antagonist.
- Multiple Choice
The genioglossus is the primary muscle involved sticking out your tongue. The styloglossus is responsible for pulling the tongue back in, making it a(n) _______ for sticking out your tongue?
- Multiple Choice
The soleus, gastrocnemius, and the tibialis anterior are all major muscles of the lower leg. The gastrocnemius and the soleus are both located in the posterior region of the calf, while the tibialis anterior is located in the anterior region of the lower leg. Based only on this information, which statement do you think is most likely true?
- Multiple ChoiceA muscle that assists the muscle primarily responsible for a given action is a(n) __________.
- Multiple ChoiceThe major abductor muscle of the upper arm is the __________.
- Multiple ChoiceThe prime mover for flexion of the thigh is the __________ muscle.
- Multiple ChoiceThe __________ assists the triceps brachii in forearm extension.
- Multiple Choice__________ are muscles that oppose or reverse a particular movement.
- Multiple ChoiceThe extensor digitorum muscle is an example of a __________ muscle.
- Multiple ChoiceThe prime movers of back extension are the __________.
- Multiple ChoiceThe __________ is the prime mover of dorsiflexion of the foot.
- Multiple ChoiceThe prime mover of arm extension is the __________.
- Open QuestionA muscle that assists an agonist by causing a like movement or by stabilizing a joint over which an agonist acts is a(n)a. antagonist,b. prime mover,c. synergist,d. agonist.
- Open QuestionMultiple ChoiceMore than one choice may apply.Doing the pincer grasp is an________movement.a. extendingb. abductingc. adductingd. opposing