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2.1 T2: Sensory inputs and motor outputs > T2 L1: Face, Temporal and infratemporal fossa > Flashcards

T2 L1: Face, Temporal and infratemporal fossa Flashcards

1
Q

Where is the basilar artery found?

A

It runs over the pons and supplies the posterior brain

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2
Q

What does the muscle occipitofrontalis do?

A

Elevates eyes (found on the forehead)

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3
Q

What does the muscle orbicularis oculi do?

A

Closes eyes (found around the eyes)

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4
Q

What does the muscle orbicularis oris do?

A

Closes mouth

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5
Q

What does the muscle zygomaticus major do?

A

Elevates the labial fissure (corners of the mouth

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6
Q

What does the buccinator muscle do?

A

Compresses cheeks

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7
Q

What does the Platysma muscle do?

A

Depresses the mandible against resistance and tenses the fascia of the neck

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8
Q

What is unique about muscles of facial expression?

A

They are the only group of muscle that insert onto the skin. They don’t have the traditional muscle to tendon transition

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9
Q

What is the cutaneous innervation of the face?

A

The Trigeminal nerve (CN V)

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10
Q

What is the innervation of muscles of facial expression on the face?

A

The facial nerve (CN VII)

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11
Q

What are the 3 divisions of the Trigeminal nerve?

A

Ophthalmic, Maxillary, and Mandibular

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12
Q

What is the name of CN V1?

A

Ophthalmic

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13
Q

What is the name of CN V2?

A

Maxillary

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14
Q

What is the name of CN V3?

A

Mandibular

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15
Q

Where does CN V1 exit via?

A

The superior orbital fissure

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16
Q

Where does CN V2 exit via?

A

The foramen rotundum

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17
Q

Where does CN V3 exit via?

A

Foramen Ovale

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18
Q

Which areas do the sensory fibres of the Ophthalmic nerve supply?

A

Skin, Mucous membranes, Conjunctiva, Nose, Front of the head

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19
Q

What are the 3 branches of the Ophthalmic nerve?

A

Lacrimal, Nasociliary, and Frontal

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20
Q

How can the Ophthalmic nerve be tested?

A

Through the Corneal blink reflex

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21
Q

Which areas do the sensory fibres of the Maxillary nerve supply?

A

Dura, Nasal cavity, upper cheek, Lip, and teeth

22
Q

What are the 3 branches of the Maxillary nerve?

A

Infraorbital, Zygomatic, and superior alveolar

23
Q

Which nerve gives off branches to the Pterygopalatine ganglion?

A

The Maxillary nerve. It enters through the Pterygopalatine fossa and branches through the inferior orbital fissure

24
Q

What is the sensory supply of the mandibular nerve?

A

Lower face, lip, and teeth

25
Q

What is the motor supply of the mandibular nerve?

A

Muscles of mastication

26
Q

What are the sensory branches of the mandibular nerve?

A

Auriculotemporal, buccal, lingual, inferior alveolar, and mental

27
Q

What are the motor branches of the mandibular nerve?

A

Temporalis, medial and lateral pterygoids, masseter, and mylohoid

28
Q

What is the temporal fossa?

A

A fan-shaped space on the lateral surface of the skull

29
Q

Where is the temporalis muscle found?

A

On the temporal fossa

30
Q

Which nerve has branches on the temporal fossa?

A

CN V2

31
Q

Where is the infratemporal fossa?

A

Below the temporal fossa

32
Q

Which nerves and arteries are found on the infratemporal fossa?

A

Medial and lateral pterygoids, maxillary artery, CN V3, branches of facial nerve (CN VII), glossopharyngeal nerve (CN IX), and the pterygoid plexus of veins

33
Q

What are the motor branches of the facial nerve (CN VII)?

A

Posterior auricular, temporal, zygomatic, buccal, marginal mandibular, cervical

34
Q

What are the parasympathetic branches of the facial nerve (CN VII)?

A

Branches to the pterygopalatine ganglion

35
Q

What are the taste branches of the facial nerve (CN VII)?

A

Via the chorda tympani via lingual nerve to anterior 2/3 of tongue

36
Q

What is the general sensory branch of the facial nerve (CN VII)?

A

The skin over the external auditory meatus

37
Q

What are the 3 salivary glands?

A

Parotid, submandibular, and sublingual

38
Q

Which nerve passes through the parotid gland?

A

The facial nerve (CN VII)

39
Q

Where in the mouth is saliva from the parotid gland released?

A

upper second molar

40
Q

What are the 2 branches of the vestibulocochlear nerve?

A

Vestibular nerve and cochlear nerve

41
Q

What is the special sensory function of the vestibulocochlear nerve (CN VIII)?

A

Somatic afferent for hearing, equilibrium, and motion

42
Q

What is the function of the temporalis muscle in mastication?

A

Elevation and retraction

43
Q

What is the function of the Masseter muscles in mastication?

A

Elevation

44
Q

What is the function of the Medial pterygoid muscle in mastication?

A

Elevation and side-to-side

45
Q

What is the function of the Lateral pterygoid muscle in mastication?

A

Protrusion and depression

46
Q

Which nerve supplies the muscles of mastication?

A

The motor branch of V3 (Mandibular nerve)

47
Q

Which special sense does the facial nerve have involvement in?

A

Taste

48
Q

Which artery supplies the face?

A

The external carotid artery

49
Q

What are the key branches of the external carotid artery of the face?

A

Lingual, facial, maxillary, and superficial temporal

50
Q

Which vein drains the face?

A

The facial vein. It starts near the eye and drains into the internal jugular vein

51
Q

Which vein do the internal jugular veins drain into?

A

The subclavian

2.1 T2: Sensory inputs and motor outputs (14 decks)

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