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Flashcards in Head Muscles Deck (27):
1

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

superior rectus
oculomotor nerve

2

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

inferior rectus
oculomotor nerve

3

what muscle adducts the eyeball only and what innervates it?

medial rectus
oculomotor nerve

4

what muscle abducts the eyeball only and what innervates it?

lateral rectus
abducens nerve

5

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

inferior oblique
oculomotor nerve

6

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

superior oblique
trochlear nerve

7

what muscle elevates eyelid and what innervates it?

levator palpebrae superioris
oculomotor nerve

8

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

superior tarsal
postganglionic sympathetic axons from superior cervical ganglion

9

what smooth muscle dilates pupil and what innervates it?

dilator pupillae
postganglionic sympathetic axons from superior cervical ganglion

10

what smooth muscle constricts pupil and what innervates it?

constrictor pupillae
oculomotor nerve

11

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

ciliary
oculomotor nerve

12

what nerve innervates the muscles of the orbit?

oculomotor nerve

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

13

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

genioglossus
hypoglossal nerve

14

what muscle depresses the tongue and what innervates it?

hyoglossus
hypoglossal nerve

15

what muscles elevate the tongue and what innervates them?

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

16

what nerve innervates the muscle of the tongue?

hypoglossal

EXCEPT palatoglossus (vagus nerve)

17

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

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

18

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

temporalis, masseter, medial pterygoid
mandibular nerve (V3)

19

what muscles protrude the mandible and what innervates them?

lateral pterygoid, masseter, medial ptyerygoid
mandibular nerve (V3)

20

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

temporalis (posterior fibers)
mandibular nerve (V3)

21

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

temporalis of same side
pterygoids of opposite side

mandibular nerve (V3)

22

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

mandibular nerve (V3)

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

23

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

tensor veli palatini
mandibular nerve V3

24

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

levator veli palatini
vagus nerve (pharyngeal plexus)

25

what muscle shortens the soft palate and what innervates it?

musculus uvulae
vagus nerve (pharyngeal plexus)

26

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

palatopharyngeus
vagus nerve (pharyngeal plexus)

27

what nerve innervates all the muscles of the palate?

vagus nerve (pharyngeal plexus)

EXCEPT tensor veli palatini: mandibular nerve V3