chapter 4

Facial paralysis can be present with a patient, either temporary or permanent, when involving which of the following patient case histories? (Select all that apply.) a. Trigeminal neuralgia b. Cerebrovascular accident c. Parotid salivary gland cancer d. Peripheral neurectomy

b. Cerebrovascular accident c. Parotid salivary gland cancer

During an extraoral examination of a patient, which of the following needs to be considered with the sternocleidomastoid muscle?(Select all that apply.) a. If one of the muscles contracts, the head and neck bend to the contralateral side. b. Effective palpation of the muscle occurs when the patient moves the head to the contralateral side. c.If both muscles contract, the head will flex at the neck and extend at the junction between the neck and skull. d. If one of the muscles contracts, the face and anterior part of the neck rotate to the ipsilateral side.

b. Effective palpation of the muscle occurs when the patient moves the head to the contralateral side. c.If both muscles contract, the head will flex at the neck and extend at the junction between the neck and skull.

Which of the following muscles when contracted causes a surprised facial expression on a patient? a. Corrugator supercilii muscle b. Epicranius muscle c. Orbicularis oculi muscle d. Zygomaticus major muscle

b. Epicranius muscle

Which of the following muscles when unilaterally contracted deviates the mandible to one side? a. Masseter muscle b. Lateral pterygoid muscle c. Medial pterygoid muscle d. Temporalis muscle

b. Lateral pterygoid muscle

Which of the following muscles can show enlargement due to repetitive muscle contraction associated with clenching of the teeth in a patient? a. Buccinator muscle b. Masseter muscle c. Temporalis muscle d. Zygomatic muscle

b. Masseter muscle

Which of the following muscles originates on the inferior border of the mandible and inserts into the skin tissue of the chin? a. Depressor labii inferioris muscle b. Mentalis muscle c. Depressor anguli oris muscle d. Orbicularis oris muscle

b. Mentalis muscle

Which of the following muscles BOTH elevates the tongue and depresses the soft palate during swallowing? a. Levator veli palatini muscle b. Palatoglossus muscle c. Palatopharyngeal muscle d. Muscle of the uvula

b. Palatoglossus muscle

Which of the following are considerations when dealing with a history of cervical muscle pathology in a dental setting? (Select all that apply.) a. Patients always can be made to sit themselves in an ergonomically correct position in the dental chair. b. Patients may not be able to raise the chin as requested during treatment. c. Patients may possibly have related headaches in the anterior skull region. d. Additional supports and stabilizers such as pillows may make the patient more comfortable.

b. Patients may not be able to raise the chin as requested during treatment. d. Additional supports and stabilizers such as pillows may make the patient more comfortable.

Which of the following intraoral landmarks is one of the origins of the buccinator muscle? a. Maxillary tuberosity b. Pterygomandibular raphe c. Glossopalatine arch d. Internal oblique ridge

b. Pterygomandibular raphe

Which of the following muscles when contracted allows for the retraction of the mandible? a. Masseter muscle b. Temporalis muscle c. Lateral pterygoid muscle d. Medial pterygoid muscle

b. Temporalis muscle

Into which of the following categories of head and neck muscles is the omohyoid muscle placed? a. Intrinsic tongue muscle b. Extrinsic tongue muscle c. Suprahyoid muscle d. Infrahyoid muscle

d. Infrahyoid muscle

Which of the following muscles when contracted dilates the nostrils? a. Orbicularis oris muscle b. Levator labii superioris muscle c. Levator anguli oris muscle d. Levator labii superioris alaeque nasi muscle

d. Levator labii superioris alaeque nasi muscle

From the following list of muscles, select which are considered infrahyoid muscles. (Select all that apply.) a. Digastric b. Mylohyoid c. Stylohyoid d. Sternothyroid e. Omohyoid

d. Sternothyroid e. Omohyoid

Which of the following muscles is NOT considered a suprahyoid muscle? a. Digastric muscle b. Mylohyoid muscle c. Stylohyoid muscle d. Sternothyroid muscle

d. Sternothyroid muscle

From the following list of muscles, select which are considered muscles of mastication. (Select all that apply.) a. Buccinator b. Risorius c. Platysma d. Temporalis e. Masseter

d. Temporalis e. Masseter

Which of the following muscles inserts onto the coronoid process? a. Lateral pterygoid muscle b. Masseter muscle c. Medial pterygoid muscle d. Temporalis muscle

d. Temporalis muscle

On what structure do BOTH heads of the masseter muscle originate? a. Zygomatic process of the maxilla b. Coronoid process c. Zygomatic process of the frontal bone d. Zygomatic arch

d. Zygomatic arch

Which muscle does not aid in smiling with the lips when it contracts?a. zygomatic major muscle b. levator anguli oris muscle c. zygomaticis minor muscle d. epicranial muscle

d. epicranial muscle

Which of the following muscle groups listed below is innervated by the cervical nerves? a. muscles of mastication b. muscles of facial expression c. suprahyoid muscles d. infrahyoid muscles e. intrinsic tongue muscles

d. infrahyoid muscles

Which of the following nerves innervates the temporals muscle? a. first cranial nerve by way of hypoglossal nerve b. ninth cranial nerve or glossopharyngeal nerve c. maxillary branch of the trigeminal nerve d. mandibular branch of the trigeminal nerve e. seventh cranial nerve or facial nerve

d. mandibular branch of the trigeminal nerve

Which of the following muscles is considered a muscle of mastication? a. buccinator b. risorius c. mentalis d. masseter e. corrugator supercili

d. masseter

Which of the following paired muscles unite medially forming the floor of the mouth? a. geniohyoid b. omohyoid c. digastric d. mylohyoid e. transverse

d. mylohyoid

Which of the following muscle pairs is divided by a median septum?a. geniohyoid b. masseter c. digastric d. transverse e. vertical

d. transverse

Extrinsic tongue muscles are innervated by the _____ cranial nerve. a. fifth b. seventh c. ninth d. twelfth

d. twelfth

Which of the following is the most commonly used muscle when the patients lips close around the saliva ejector? a. risorius b. mentalis c. mylohyoid d. buccinator e. orbicularis oris

e. orbicularis oris

The origin of the frontal belly of the epicranial muscle and the insertion of t's occipital belly are both at the A. clavicle and sternum B. mastoid process C. apicranial aponeurosis D. pterygoidmandibular reference

C. apicranial aponeurosis

From the following list of muscles, select which are considered muscles of facial expression. (Select all that apply.) a. Buccinator b. Risorius c. Platysma d. Temporalis e. Masseter

a. Buccinator b. Risorius c. Platysma

Which of the following muscles will serve to depress the lower lip? a. Depressor labii inferioris and depressor anguli oris muscles b. Depressor labii inferioris and orbicularis oris muscles c. Depressor labii inferioris and mentalis muscles d. Depressor labii inferioris and risorius muscles

a. Depressor labii inferioris and depressor anguli oris muscles

From the following list of muscles, select which muscles are considered suprahyoid muscles. (Select all that apply.) a. Digastric b. Mylohyoid c. Stylohyoid d. Sternothyroid e. Omohyoid

a. Digastric b. Mylohyoid c. Stylohyoid

When a patient swallows, how are the suprahyoid muscles involved? a. Elevate the hyoid bone b. Depress the hyoid bone c. Retract the hyoid bone d. Depress the mandible

a. Elevate the hyoid bone

What are the two parts of the epicranial muscle named? a. Frontal and occipital bellies b. Superior and inferior bellies c. Anterior and posterior bellies d. Superior and inferior heads e. Superficial and deep heads

a. Frontal and occipital bellies

From the following list of muscles, select which muscles create the faucial pillars within the oral cavity. (Select all that apply.) a. Palatoglossus b. Tensor veli palatini c. Palatopharyngeus d. Levator veli palatini

a. Palatoglossus c. Palatopharyngeus

Which of the following muscles raises each labial commissure of the lips to contribute to a patient's smile? a. Zygomaticus major muscle b. Buccinator muscle c. Platysma muscle d. Epicranius muscle

a. Zygomaticus major muscle

Which muscle listed is considered most superiorly located on the head and neck? a. corrugate supercilii muscle b. zygomatic major muscle c. superior pharyngeal constrictor muscle d. superior belly of the omohyoid muscle

a. corrugate supercilii muscle

Which muscles activity helps to prevent the tongue from sinking back and obstructing respiration? a. genioglossus muscle b. stlopharyngeus muscle c. inferior longitudinal muscle d. Palatoglossus muscle

a. genioglossus muscle

Which of the following muscle groups inserts directly on the hyoid bone? a. geniohyoid, stylohyoid, and omohyoid muscles b. masseter, stylohoid, and digastric muscles c. masseter, buccinator, and omohyoid muscles d. palatopharyneus and palatoglossus muscles and muscle of the uvula

a. geniohyoid, stylohyoid, and omohyoid muscles

Which of the following muscles has two bellies and giving the muscle to different origins? a. lateral pterygoid b. geniohyoid c. thyohyoid d. stylohyoid

a. lateral pterygoid

Which muscle listed below is most superficial in regard to location? a. masseter muscle b. medial pterygoid muscle c. lateral pterygoid muscle d. superior pharyngeal constrictor muscle

a. masseter muscle

Which muscle can make the patience oral vestibule shallower, thereby making dental work sometimes difficult? a. mentalis b. zygomaticus major c. depressor anguli oris d. levator anguli oris

a. mentalis

Which of the following muscles forms the anterior faucial pillar in the oral cavity? a. palatoglossus b. palatopharyngeus c. stylopharyngeus d. tensor veli palatini

a. palatoglossus

Which muscle is located just deep to the skin of the neck? a. platysma b. buccinator c. risorius d. mentalis

a. platysma

Which of the following muscle pairs are considered to be intrinsic tongue muscles? a. superior longitudinal b. genioglossus c. syloglossus d. hyoglossis

a. superior longitudinal

All three pharyngeal constrictors work to raise the pharynx and larynx during a. swallowing. b. gagging. c. sneezing. d. chewing.

a. swallowing.

Which of the following are considerations when dealing with a history of facial paralysis in a dental setting? (Select all that apply.) a. Inability to form facial expressions on one side of the face may be present. b. Twitching, spasms, and weakness can be evident. c. Loss of voluntary muscle action is always permanent. d. Reduced drooling and the usual taste sensations are evident.

b. Twitching, spasms, and weakness can be evident. d. Reduced drooling and the usual taste sensations are evident

Which muscle of facial expression compresses the cheeks during chewing assisting the muscles of mastication? a. risorius b. buccinator c. mentalis d. orbicularis oris e. masseter

b. buccinator

Which of the following situations occurs when both sternocleidomastoid muscles are using the same time by the patient?a. neck is drawn laterally b. head flexes at the neck c. chin moves superiorly to the contralateral side d. head rotates and is drawn to the shoulders

b. head flexes at the neck

Which of the following muscles is an extrinsic muscle of the tongue?a. geniohyiod muscle b. hyoglossus muscle c. mylohyoid muscle d. transverse muscle e. vertical muscle

b. hyoglossus muscle

The superior pharyngeal constrictor muscle is noted to a. originate from the larynx b. insert the median pharyngeal raphe c. overlap the stylopharyngeus muscle d. be a longitudinal muscle of the pharynx

b. insert the median pharyngeal raphe

The ______ of a muscle is generally attached to the LEAST movable structure. a. insertion b. origin c. middle d. beginning

b. origin

Which of the following descriptions concerning the masseter muscle is correct? a. most superficial muscle ups facial expression b. originates from the zygomatic arch c. inserts on the medial surface of the mandibles angle d. depresses the mandible during jaw movement

b. originates from the zygomatic arch

The posterior belly of the digastric muscle is also considered a. muscle facial expression b. posterior suprahyoid muscle c. intrinsic muscle of the tongue d. extrinsic muscle of the tongue

b. posterior suprahyoid muscle

Which of the following muscle groups is involved in both elevating hyoid bone and depressing the mandible? a. muscles of mastication b. suprahyoid muscles c. infrahyoid muscles d. intrinsic tongue muscles e. extrinsic a tongue muscles

b. suprahyoid muscles

Which of the following muscles originates on the inferior border of the mandible and inserts at each of the labial commissures? a. Levator anguli oris muscle b. Depressor labii inferioris muscle c. Depressor anguli oris muscle d. Orbicularis oris muscle

c. Depressor anguli oris muscle

Which of the following muscles works to protrude the tongue on a patient? a. Hyoglossus muscle b. Styloglossus muscle c. Genioglossus muscle d. Superior longitudinal muscles

c. Genioglossus muscle

Which of the following muscles listed below does NOT serve to elevate the upper lip? a. Levator anguli oris muscle b. Levator labii superioris alaeque nasi muscle c. Risorius muscle d. Zygomaticus major muscle

c. Risorius muscle

Which of the following are considered cervical muscles? a. Masseter and medial pterygoid muscles b. Medial and lateral pterygoid muscles c. Sternocleidomastoid and trapezius muscles d. Buccinator and epicranial muscles

c. Sternocleidomastoid and trapezius muscles

Which of the following muscles divides the neck region into anterior and posterior cervical triangles? a. Omohyoid muscle b. Platysma muscle c. Sternocleidomastoid muscle d. Trapezius muscle

c. Sternocleidomastoid muscle

Which of the following muscles is considered an extrinsic tongue muscle that retracts the tongue? a. Palatoglossus muscle b. Inferior longitudinal muscle c. Styloglossus muscle d. Genioglossus muscle

c. Styloglossus muscle

Which muscle listed below when contacted causes a frown a. zygomaticus minor muscle b. levator anguli oris muscle c. depressor aguli oris muscle d. risorius muscle

c. depressor aguli oris muscle

Which of the following muscle groups listed below serves to depress the hyoid bone? A. muscle of mastication B. suprahyoid muscles c. infrahyoid muscles d. intrinsic tongue muscles E. extrinsic tongue muscles

c. infrahyoid muscles

All the muscles of the pharynx are known to be involved in a. closing the jaws b. facial expression c. middle ear function d. stabilization of the mandible

c. middle ear function

Which of the following muscle groups is innervated by the facial nerve? A. intrinsic tongue muscles b. extrinsic tongue muscles c. muscles of facial expression d. muscles of mastication

c. muscles of facial expression

Which of the following muscles is used when a patient grimaces? a. epicranial b. corrugator cupercilii c. risorius d. mentalis

c. risorius

The origin of a muscle is considered to be a. the starting point of the muscle b. where the muscle fibers join the bone tendon c. the muscle end attach the least movable structure d. the muscle and attached to the most movable structure

c. the muscle end attach the least movable structure