Lecture 7: Superficial Face and Scalp Flashcards Preview

Year 1: 05. Neuro Exam 1 > Lecture 7: Superficial Face and Scalp > Flashcards

Flashcards in Lecture 7: Superficial Face and Scalp Deck (50)
Loading flashcards...
1

What are the five layers of the scalp?

Skin

Connective tissue

Aponeurosis

Loose connective tissue

Pericranium

2

What is the most vascularized layer of the scalp?

Dense Connective tissue

-Holds arteries open 

3

What muscle is attached to the aponeurosis of the scalp?

Occipitalis Frontalis Muscle 

4

What layer of the scalp can become a potential space for infection?

Loose connective tissue

5

What layers of the scalp form the scalp proper?

Skin

Connective tissue (dense)

Aponeurosis

6

What direction does the neurovasculature of the scalp travel?

Inferior to superior

7

What layer of the scalp must be cut through to cause a gaping wound?

Aponeurosis - provides attachment for muscles which can pull back and cause a gaping wound

8

Where is the parotid gland?

Goes from Zygomatic Arch to Inferior Border of Mandible 

9

What are the three major structures passing through the Parotid gland?

Facial Nerve (does not innervate gland)

Retromandibular Vein

External Carotid Artery

10

What muscle does the parotid duct dive into?

Buccinator Muscle

11

What is the sensory innervation of the parotid gland?

What is the parasympathetic innervation of the parotid gland?

Sensory: Auricolotemporal Nerve (branch of CN V3) and Great Auricular Nerve

Parasympathetic: CN IX 

12

Why would a patient with mumps have pain in the cheek?

Parotid gland is swelling and is constricted by investing layer of deep cervical fascia and cannot expand

13

What part of the orbicularis oculi closes the eye tightly?

Orbital part

14

What part of the orbicularis oculi gently closes the ey?

Palpebral part

15

What cranial nerve closes the eye?

What cranial nerve opens the eye?

Closes: Cranial Nerve VII (Facial)

Opens: Cranial Nerve III (Oculomotor)

 

16

What is the embryonic origin of the muscles of facial expression?

Pharyngeal Arch 2

Mesoderm

17

What are the four muscles of mastication?

What cranial nerve innervates them all?

  1. Temporalis Muscle
  2. Masseter Muscle
  3. Medial Pterygoid Muscle
  4. Lateral Pterygoid Muscle

Innervated by Cranial Nerve V3 

18

What is the embryonic origin of the muscles of mastication?

Pharyngeal Arch 1

Mesoderm

19

What are the branches of Facial Nerve providing motor innervation?

Posterior Auricular N

Temporal N.

Zygomatic N.

Buccal N.

Mandibular N.

Cervical N.

pA Tiny Zenbra Bit My Cheek

20

Where does the Facial Nerve enter the skull?

Where does the Facial Nerve exit the skull?

Enter: Internal Acoustic Meatus 

Exit: Stylomastoid Foramen

21

What branch of Facial Nerve provides sensory information to the anterior 2/3 of the tongue?

Chorda Tympani

22

What branch of Facial N. carries parasympathetic fibers to the submandibular and sublingual salivary glands?

Chorda Tympani

23

What branch of Facial Nerve transmits parasympathetic fibers to the lacrimal gland?

Greater Petrosal Nerve

24

What are some symptoms of Bell's Palsy?

Damage done to ipsilateral side

  • Loss of parasympathetic innervation to lacrimal ducts
    • No tear production
  • Loss of innervation to stapedius muscle 
    • No protection from loud noises 
  • Loss of taste to anterior ⅔ of tongue 
  • Lose parasympathetic innvervation to submandibular and sublingual salivary glands 
  • Cannot move facial muscles
  • Cannot close eye 
  • Loss of general sensory to ear

25

If the Facial Nerve was damaged in the Internal Acoustic, what symptoms would be seen?

Loss of all functions of Facial Nerve

26

If the Facial Nerve was damaged at the entrance of the facial canal, what symptoms would we see?

Loss of all functions of Facial Nerve except parasympathetic innervation to lacrimal gland 

27

If the Facial Nerve was damaged right before the branch of the Chorda Tympani, what symptoms would we see?

Loss of all functions of Facial Nerve except parasympathetic innervation to lacrimal gland and innervation to stapedius muscle

Only will have tear production and protection against loud sounds! 

28

If the Facial Nerve was damaged at the stylomastoid foramen, what symptoms would we see?

Symptoms

  • Unilateral flaccid paralysis of facial muscles 
  • Loss of sensation around ear 

Will have tear production, protection against loud sounds, taste to tongue, and salivary production 

29

What is the sensory innervation of the bridge of the nose?

Opthalmic V1

30

What is the sensory innervation of the sides of the nose?

Maxillary V2