Face Flashcards

1
Q

What are the layers of the Scalp?

A

Skin

Connective tissue (deep/dense)

Aponeurotic layer

Loose connective tissue

Pericranium (attached to skull)

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2
Q

What are the branches of facial nerve that innervate muscles of facial expression?

A

Temporal
Zygomatic

Buccal

Mandibular

Cervical

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3
Q

What is the sensory division of Facial nerve (CN VII)?

A

Sensory of facial nerve is to the anterior 2/3 of the tongue

Parasympathetic fibers go to the lacrimal gland and submandibular and sublingual glands

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4
Q

What does cutaneous senstation to the face?

A

Trigeminal nerve CN V

Ant and post Cervical rami

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5
Q

What is Bell’s palsy?

A

Bell’s palsy is a type of facial paralysis that results in an inability to control the facial muscles on the affected side.

  • Symptoms can vary from mild to severe.
  • They may include muscle twitching, weakness, or total loss of the ability to move one or rarely both sides of the face.
  • Other symptoms include drooping of the eyelid, a change in taste, pain around the ear, and increased sensitivity to sound.
  • Loss of tone in orbicularis oculi is a problem because lacrimal fluid is not spread over the cornea preventing adequate lubrication
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6
Q

Which layer of the scalp can infection spread through easily?

A
  • The loose connective tissue layer is the danger area because pus or blood spreads easily in it
  • Infection in this layer can also pass into the cranial cavity through small emissary veins–>which pass through parietal foramen in the calvaria and reach intracranial structures such as meninges
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7
Q

Why do cuts in the scalp bleed so profusely?

A

Arteries course within the connective tissue layer.

  • arteries anastomsis freely with adjacent arteires and across the midline with the contralateral artery
  • arterial walls are firmly attached to the dense connective tissue in which the arteries are embedded, limiting their ability to constict when cut
    • so you bleed a lot in the scalp
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8
Q

Explain the blood supply to the face

A

Most are branches of external carotid

  • Facial artery: provides the major arterial supply to face
  • Superficial temporal artery: smallest terminal branch of carotid
  • Transv facial: arises with in parotid gland and crosses face superficial to masseter
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9
Q

Lymph from the scalp face and neck drains into the superficial ring of lymph nodes. What is this ring?

A

Submental

Submandibular

Parotid

Mastoid

Occipital

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