Quiz 8 Questions Flashcards
What is the significance of the mental spines in muscle attachment?
a) Superior mental spines originate the geniohyoid muscle; inferior spines originate the genioglossus.
b) They are purely vestigial and have no muscular function.
c) Superior mental spines originate the genioglossus muscle; inferior spines originate the geniohyoid.
d) Both superior and inferior spines are origins for the mylohyoid muscle.
c) Superior mental spines originate the genioglossus muscle; inferior spines originate the geniohyoid.
A speech-language pathologist observes that a patient is experiencing difficulty with mastication, particularly when moving the jaw laterally. This impairment affects the patient’s ability to chew food properly which requires lateral jaw movements. Which muscle might be implicated in the patient’s difficulties?
a) Temporalis
b) Medial pterygoid
c) Lateral pterygoid
d) Masseter
c) Lateral pterygoid
Which of the following muscle pairs correctly match both their origin and function?
a) Genioglossus – originates at mental spine; protracts and depresses tongue
b) Palatoglossus – originates at hyoid bone; retracts tongue
c) Styloglossus – originates at mandible; depresses tongue
d) Hyoglossus – originates at temporal bone; elevates tongue
a) Genioglossus – originates at mental spine; protracts and depresses tongue
A linguist is investigating how dental anesthesia affects articulation. If the anesthetic is administered through the mental foramen, which articulatory function is most likely to be disrupted?
a) Lowering of the jaw
b) Left-to-right movement of the mandible
c) Sensation in the lower lip and chin
d) Raising of the jaw
c) Sensation in the lower lip and chin
True or False: John is looking at a midsaggital slice/image of the tongue of a subject and notices a groove around the tongue body area. It is the genioglossus muscle that can create such a groove in the tongue.
True
True or False: The masseter muscle, like the temporalis, inserts on the coronoid process of the mandible and primarily contributes to jaw retraction.
False
True or False: The mandibular foramen is located on the external surface of the mandible, while the mental foramen is found internally on the ramus.
False
True or False: Mary is curious if the tongue dorsum lowers in [d] compared to [n], which involves a raising of the tongue tip. Ultrasound imaging would be an effective choice for Mary in this study.
False
