Head Muscles Flashcards

1
Q

what muscle elevates and adducts eyeball (cornea moves up and in), and what innervates it?

A

superior rectus

oculomotor nerve

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2
Q

what muscle depresses and adducts eyeball (cornea moves down and in) and what innervates it?

A

inferior rectus

oculomotor nerve

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3
Q

what muscle adducts the eyeball only and what innervates it?

A

medial rectus

oculomotor nerve

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4
Q

what muscle abducts the eyeball only and what innervates it?

A

lateral rectus

abducens nerve

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5
Q

what muscle elevates and abducts eye ball (cornea moves up and out) and what innervates it?

A

inferior oblique

oculomotor nerve

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6
Q

what muscle depresses and abducts eyeball (cornea moves down and out) and what innervates it?

A

superior oblique

trochlear nerve

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7
Q

what muscle elevates eyelid and what innervates it?

A

levator palpebrae superioris

oculomotor nerve

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8
Q

what smooth muscle elevates eyelid in sympathetic response and what innervates it?

A

superior tarsal

postganglionic sympathetic axons from superior cervical ganglion

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9
Q

what smooth muscle dilates pupil and what innervates it?

A

dilator pupillae

postganglionic sympathetic axons from superior cervical ganglion

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10
Q

what smooth muscle constricts pupil and what innervates it?

A

constrictor pupillae

oculomotor nerve

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11
Q

what smooth muscle relaxes suspensatory ligament to permit lens to round up in near response and what innervates it?

A

ciliary

oculomotor nerve

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12
Q

what nerve innervates the muscles of the orbit?

A

oculomotor nerve

EXCEPT lateral rectus (abducens nerve) and superior oblique (trochlear nerve)

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13
Q

what muscle protrudes and retracts the tongue and what innervates it?

A

genioglossus

hypoglossal nerve

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14
Q

what muscle depresses the tongue and what innervates it?

A

hyoglossus

hypoglossal nerve

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15
Q

what muscles elevate the tongue and what innervates them?

A

styloglossus: hypoglossal nerve
palatoglossus: vagus nerve (pharyngeal plexus)

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16
Q

what nerve innervates the muscle of the tongue?

A

hypoglossal

EXCEPT palatoglossus (vagus nerve)

17
Q

what muscles depress the mandible (open mouth) and what innervates them?

A

digastric (anterior belly): nerve to mylohyoid (V3)

infrahyoid (strap muscles): ansa cervicalis or C1 fibers

18
Q

what muscles elevate the mandible (close mouth) and what innervates them?

A
temporalis, masseter, medial pterygoid
mandibular nerve (V3)
19
Q

what muscles protrude the mandible and what innervates them?

A
lateral pterygoid, masseter, medial ptyerygoid
mandibular nerve (V3)
20
Q

what muscle causes retrusion of the mandible and what innervates it?

A
temporalis (posterior fibers)
mandibular nerve (V3)
21
Q

what muscles grind (side to side) the mandible and what innervates them?

A

temporalis of same side
pterygoids of opposite side

mandibular nerve (V3)

22
Q

what nerve innervates the muscles that act at the temporomandibular joint?

A

mandibular nerve (V3)

EXCEPT digastric (anterior belly): nerve to mylohyoid (V3), infrahyoid (strap muscles): ansa cervicalis or C1 fibers

23
Q

what muscle tenses the soft palate and opens the auditory tube and what innervates it?

A

tensor veli palatini

mandibular nerve V3

24
Q

what muscle elevates the soft palate and opens the auditory tube and what innervates it?

A
levator veli palatini
vagus nerve (pharyngeal plexus)
25
Q

what muscle shortens the soft palate and what innervates it?

A
musculus uvulae
vagus nerve (pharyngeal plexus)
26
Q

what muscle narrows the isthmus of fauces and elevates the larynx and pharynx and what innervates it?

A
palatopharyngeus
vagus nerve (pharyngeal plexus)
27
Q

what nerve innervates all the muscles of the palate?

A

vagus nerve (pharyngeal plexus)

EXCEPT tensor veli palatini: mandibular nerve V3