Face, Temporal and and infratemporal fossa Flashcards

Learn about the face, temporal and infraorbital foramen.

1
Q

Describe the face.

A

The face is the anterior part of the head and provides identity as a human being.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are some important roles of the face?

A

Communication with others and our interaction with the environment.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What forms the shape of the face?

A

The underlying bones.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Name some bones of the face and what features they underlie

A
Frontal bone - forehead
Zygomatic bone - cheekbones
Maxillary bone - cheek
Mandible - jaw
Mandibular process - chin
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What do the muscles of facial expression do?

A

They close the eye and mouth and convey mood.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Which muscle elevates the eyebrows?

A

Occipitofrontalis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What does orbicularis oculi do?

A

Closes eyelids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Which muscle closes the mouth?

A

Orbicularis oris

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Which muscle elevates labial commissure?

A

Zygomaticus major

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What does the Platysma do?

A

It depresses the mandible against resistance, and tenses the fascia of the neck

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What does the buccinator do?

A

Compresses the cheek

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the supply of cutaneous innervation?

A

The trigeminal nerve (CN V)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What does the facial nerve (CN VII) supply?

A

All muscles of facial expression

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the three branches of the trigeminal nerves?

A
Opthalmic nerve (V1)
Maxillary nerve (V2)
Mandibular nerve (V3)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the name of cranial nerve 7 and what type of innervation does it supply?

A

Facial nerve. Sensory, tase, general, motor and visceral motor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Where does cranial nerve 7 exit?

A

Internal acoustic meatus
Facial canal
Stylomastoid foramen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are the motor branches of cranial nerve 7? (Hint: there are six)

A
Posterior auricular
Temporal
Zygomatic
Buccal
Marginal mandibular Cervical
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Where does the parasympathetic part of CN VII branch to?

A

It branches to the pterygopalatine ganglion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What does the pterygopalatine ganglion do?

A

The pterygopalatine ganglion goes to the nasal passage and helps to regulate bloodflow to the nasal conchae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

How does cranial nerve 7 supply taste information?

A

via the chorda tymphani via the lingual nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Which part of the tongue does the lingual nerve supply sensory innervation to?

A

The anterior two thirds of the tongue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Where does cranial nerve 7 supply general sensory innervation over?

A

The skin over the external auditory meatus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What are the three salivary glands in the head which aid digestion
called?

A

Parotid, submandibular and sublingual

24
Q

Which salivary gland is the largest?

A

The parotid gland

25
Q

Describe the location of the parotid gland

A

Superficial to muscles

26
Q

Where does the parotid duct leave the parotid gland and where does it go to?

A

the parotid duct leaves the gland at the anterior edge, passing towards the corner of the mouth but turning deep through the buccinator

27
Q

Where does the parotid duct open?

A

The parotid duct opens into the oral cavity at the upper second molar tooth

28
Q

Which structures run through the parotid gland?

A

The retromandibular vein
The external carotid artery
The facial nerve

29
Q

Which muscles are responsible for mastication?

A

Temporalis
Masseter
Medial pterygoid
Lateral pterygoid

30
Q

What does the temporalis do?

A

elevation and retraction

31
Q

what does the masseter do?

A

Elevation- from angle of jaw to the zygomatic arch, and responsible for closing jaw

32
Q

What does the medial pterygoid do?

A

Elevation, side to side movements

33
Q

What does the lateral pterygoid do?

A

Protrusion and depression

34
Q

Where is the nerve supply for the muscles of mastication from?

A

The motor branch of V3

35
Q

What type of innervation does cranial nerve 5 supply?

A

general sensory and somatic motor to derivatives of the 1st pharyngeal arch

36
Q

Name the first division of cranial nerve V (V1) and state its exit

A

Opthalmic; superior orbital fissure

37
Q

Name the second division of cranial nerve V (V2) and state its exit

A

Maxillary; foramen rotundum

38
Q

Name the third division of cranial nerve V and state its exit

A

Mandibular, foramen ovale

39
Q

What type of nervous supply does the opthalmic division of the trigeminal nerve provide?

A

Sensory fibres in the skin, mucous membranes, conjunctiva, front of head and nose

40
Q

What branches does V1 form?

A

lacrimal
nasocillary
frontal

41
Q

Where does V1 exit

A

Superior orbital fissure

42
Q

What type of supply does V2 provide?

A

Sensory fibres in the dura, nasal, upper cheek, lip, teeth

43
Q

Describe the path that the maxillary nerve (V2) takes

A

Enters the pterygopalatine fossa, gives off branches to the pteryggopalatine ganglion, then through the inferior orbital fissure

44
Q

Where does the maxillary nerve exit the skull?

A

Foramen rotundum

45
Q

What branches are formed from the maxillary nerve?

A

infraorbital, zygomaticofacial and zygomaticotemporal

46
Q

What kind of nerve supply does the mandibular nerve provide?

A

Mixed, both sensory and motor. sensory to the lower face, lip, teeth. Motor to muscles of mastication

47
Q

Where does the mandibular nerve provide motor supply to?

A

The muscles of mastication

48
Q

Where does the mandibular nerve exit the skull?

A

The foramen ovale

49
Q

Name the sensory branches of the mandibular nerve

A

Auriculotemporal, buccal, mental, lingual, inferior alveolar

50
Q

Name the motor branches of the mandibular nerve

A

Temporalis, masseter, medial and lateral pterygoids, nerve to mylohoid

51
Q

Where does V3 supply parasympethic innervation to?

A

The salivary glands

52
Q

What is the temporal fossa?

A

A fan shaped space that is located on the lateral surface of the skull

53
Q

What does the temporal fossa contain?

A

the temporalis muscle and branches of V2

54
Q

Describe the location of the infratemporal fossa.

A

It is inferior to the temporal fossa

55
Q

What does the infratemporal fossa contain?

A
Medial and lateral pterygoids
maxillary artery
V3
branches of the facial nerve
glossopharyngeal nerve pterygoid plexus of veins