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1
Q

masseter action

A

elevates and protracts mandible

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2
Q

temporalis action

A

elevates and retracts mandible

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3
Q

lateral pterygoid action

A

protracts mandible, depresses chin (bilateral), grinding

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4
Q

medial pterygoid action

A

elevates, protracts (bilateral), grinding (unilateral)

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5
Q

What represents the communication pathway between the infra temporal fossa and the pterygopalatine fossa?

A

pterygomaxillary fossa

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6
Q

What arteries branch from the third part of the maxillary artery?

A

posterior superior alveolar, infraorbital, descending palatine, artery to pterygoid canal, pharyngeal artery, sphenopalatine artery

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7
Q

What arteries branch from the first part of the maxillary artery?

A

deep auricular, anterior tympanic, middle meningeal, accessory meningeal, inferior alveolar

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8
Q

What artery branches from the second part of the maxillary artery?

A

buccal

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9
Q

What scalenes attach to the first rib?

A

anterior and middle

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10
Q

What scalenes attach to the second rib?

A

posterior

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11
Q

The posterior belly of the digastric nerve is derived from the second pharyngeal arch and is innervated by what nerve?

A

facial

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12
Q

Where does the digastric muscle originate?

A

anterior belly: digastric fossa of mandible

posterior belly: mastoid notch of temporal bone

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13
Q

What are branches of the medial branch of the external carotid artery?

A

ascending pharyngeal artery

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14
Q

What are branches of the anterior branch of the external carotid artery?

A

facial, lingual, superior thyroid

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15
Q

what are branches of the terminal branch of the external carotid artery?

A

maxillary and superficial temporal

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16
Q

What are the branches of the posterior branch of the external carotid artery?

A

posterior auricular

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17
Q

What is the thyrohyoid supplied by?

A

hypoglossal nerve

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18
Q

Sensory to anterior 2/3 of tongue

A

mandibular branch of the trigeminal nerve

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19
Q

taste from anterior 2/3 of tongue

A

facial nerve

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20
Q

taste from posterior 1/3 of tongue

A

glossopharyngeal nerve

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21
Q

sensory from posterior 1/3 of tongue

A

glossopharyngeal

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22
Q

What glands does the facial nerve supply?

A

lacrimal, submandibular, sublingual, mucous

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23
Q

What gland does the glossopharyngeal nerve supply?

A

parotid

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24
Q

What does the occulomotor nerve supply?

A

extrinsic muscles of the eyes, constrictor pupillae, ciliary muscles

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25
Where are the sensory neurons of CN V located?
semilunar ganglion
26
Where are the sensory neurons of CN VII located?
geniculate ganglion
27
Whater are parasympathetic preganglionic fibers to the ciliary ganglion located?
Edinger-Westphal nucleus
28
What is the spinal accessory nerve located?
nucleus ambiguus
29
What foramina does the mandibular branch of CN V enter?
ovale
30
what foramina does the maxillary branch of CN V enter?
rotundum
31
What foramina does the internal carotid artery enter?
lacerum
32
What are the motor branches of the facial nerve?
temporal, zygomatic, buccal, mandibular, cervical
33
What are the branches of the ophthalmic branch of the trigeminal nerve?
frontal, lacrimal, nasocilliary
34
What are the branches of the maxillary branch of the trigeminal nerve?
infraorbital, anterior superior alveolar, zygomatic, palatine, nasal, posterior superior alveolar
35
What are the branches of the mandibular branch of the trigeminal nerve?
muscles of mastication, auriculotemporal, inferior alveolar, lingual, buccal
36
What ligament extends from the styloid process to angle of mandible?
stylomandibular ligament
37
What ligament extends from the sphenoid spine to mandibular ligament?
sphenomandibular
38
What ligament extends from the base of the zygomatic process to mandibular neck?
temporomandibular
39
Anterior border of infra temporal fossa
maxilla
40
superior border of infra temporal fossa
greater wing of sphenoid
41
medial border of infra temporal fossa
lateral pterygoid plate
42
lateral border of infra temporal fossa
coronoid process and ramus of mandible
43
inferior border of infra temporal fossa
continuous with neck
44
posterior border of infra temporal fossa
TMJ and styloid process
45
contents of infratemporal fossa
``` mandibular nerve maxillary artery medial and lateral pterygoid muscles lower part of temporalis muscle chorda tympani nerve orti ganglion ```
46
motor innervation to tongue
hypoglossal
47
superior border of anterior cervical triangle
mandible
48
anterior border of anterior cervical triangle
midline of neck
49
poster border of anterior cervical triangle
sternocleidomastoid
50
What foramina does the middle meningeal artery exit?
foramen spinosum
51
What modality are smooth muscles of the gut tract?
general visceral motor
52
What modality are skeletal muscles?
general somatic motor
53
What modality are autonomic motor muscles?
general visceral motor
54
What modality are muscles derived from pharyngeal arches?
special visceral motor
55
Where are the medullary rhythmicity center, cardiac center and vasomotor center located?
medulla
56
Lesions bilateral to ventral pons causes what?
consciousness but quadriplegic
57
Lesions to lateral of pons causes what?
hypotonia
58
What is the function of the midbrain?
unconscious regulation and coordination of motor activities
59
Red nucleus function
receives information from cerebellum and cerebral cortex and projects to cerebellum
60
Cranial nerves VIII, IX, X, XI, and XII are found in which subdivision of the brain?
medulla
61
Cranial nerves III, IV are found in which subdivisions of the brain?
midbrain
62
Cranial nerves V, VI and VII are found in which subdivisions of the brain?
pons
63
What relays information to the primary visual cortex in occipital cortex?
lateral geniculate
64
What is the function of the ventral posterior nuclei?
general sensations and taste
65
Epithalamus function
emotional and visceral responses to odors
66
anterior relay nuclei function
concerned with certain emotions and memory
67
reticular relay nuclei function
modifies neuronal activity in thalamus
68
RAS function
modulates sensation of pain, postural reflexes and muscle tone, helps control breathing and heartbeat, regulates consciousness
69
What group of tracts connects the 2 hemispheres of the brain?
commissural
70
Where is the myelencephalon found?
in medulla
71
what does the papez circuit deal with?
emotions

Anatomy II Exam 3 (2 decks)

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