Module 8 - Study Questions

Which of the following nerves innervates the temporalis muscle?

V-3

Which of the following are suprahyoid muscles? Check all that apply.

digastric stylohyoid geniohyoid

Which of the following are muscles of facial expression? Check all that apply.

epicranial risorius buccinator platysma

The _________________ muscle is assoicated with the look of surprise. The ______________ muscle is assoicated with frowing.

epicranial; depressor anguli oris

The mylohyoid muscle inserts on the body of the mandible and the origin is the genial tubercles of the mandible. The stylohyoid muscle insert on the hyoid bone and the origin is the styloid process of the sphenoid bone.

first statement false and second statement true

Which muscle's activity helps to prevent the tongue from sinking back and obstructing respiration?

genioglossus

Which muscle has two bellies, giving the muscle two different origins?

lateral pterygoid

Which of the following muscles are considered a muscle of mastication? Check all that apply

masseter temporalis medial pterygoid

Which muscle can make the patient's oral vestibule more shallow thereby making scaling the mandibular anterior teeth difficult?

mentalis

Which muscle is located just under the skin of the neck?

platysma

Which of the following muscle groups is involved in both elevating the hyoid bone and depressing the mandible?

suprahyoid muscles

The origin of a muscle is considered to be:

the muscle end attached to the least movable structure

The origin of the zygomaticus major is: The insertion of the zygomaticus major is:

zygomatic bone; labial commisure

Which muscles aid in smiling with the lips when contracted?

zygomatic major zygomatic minor levator anguli

Which of the following muscles raises each labial commissure of the lips to create the patient's smile?

zygomaticus major muscle

The masseter muscle elevates the mandible. The temporalis retracts the mandible and also elevates the mandible.

both statements are true

Which muscle of facial expression compresses the cheeks during chewing, assisting the muscle of mastication?

buccinator

Which of the following muscles is an extrinsic muscle of the tongue?

hyoglossus

Which of the following muscle groups listed below serve to depress the hyoid bone?

infrahyoid

Which of the following muscle groups is innervated by the facial nerve?

muscles of facial expression

Which of the following paired muscles unite medially, forming the floor of the mouth?

mylohyoid

Which of the following is the MOST commonly used muscle when the patient's lip close around the straw?

orbicularis oris

Which of the following muscles forms the anterior faucial pillar in the oral cavity?

palatoglossus

___________________muscle inserts on the lateral surface of the tongue and the origin is the median palatine raphe.

palatoglossus

This muscle moves the palate posteroinferiorly and posterior pharyngeal wall anterosuperiorly to help close off the nasopharynx.

palatopharyngeus