4-Skull Face and Scalp brainscape

Question 1

Blood Supply to the Face

Answer 1

1) Facial (inferior & superior labials, lateral nasal) 2) Transverse facial (branch of superficial temporal) 3) Maxillary 4) Branches of the opthalamic artery 5) Frontal artery

Question 2

Blood Supply to the Scalpe

Answer 2

Posterior auricular (external carotid) Superficial Temporal (external carotid) Supraorbital (internal carotid) Occipital (external carotid) Supratrochlear (internal carotid) *PS- SOS!

Question 3

Branches of the Facial Nerve

Answer 3

Temporal Zygomatic Buccal Mandibular Cervical *To Zanzibar By Motor Car

Question 4

Contents of the Subclavian Triangle

Answer 4

*Subclavian artery *Brachial plexus

Question 5

Horner Syndrome

Answer 5

Ptosis Miosis Anhidrosis *Possibly due to Pancoast Tumor of Upper Lung (which will injure cervical ganglia) or damage to the nerve of Vidian (Ptyergoid canal)

Question 6

Infection leading to black eyes

Answer 6

infection in the loose CT layer can pass into cranial cavity through emissary veins

Question 7

Lamina papyracea

Answer 7

paper thin bone - orbital plate of ethmoid *fracture can cause entrapment of hte medial rectus muscle

Question 8

Layers of the Scalp

Answer 8

S: Skin (thin, contains hair, sweat glands) C: CT (thick, ndense, richly vascularized) A: Aponeurosis - strong tendinous sheet L: Loose CT: sponge like, allows free movement P: Pericranium: thick dense layer of CT

Question 9

Perineural invasion and spread of cancer

Answer 9

cancer spreads along the adventitia of cranial nerves

Question 10

Relationship between the facial nerve and parotid gland

Answer 10

Parotid gland sits on top of facial nerve,

Question 11

Superficial Hemorrhage

Answer 11

scalp laceration that bleeds profusely because the blood vessel adventitia is held open by the dense CT

Question 12

Venous Drainage of the Face & Scalp

Answer 12

Superficial Temporal Retromandibular= Superficial Temporal + Maxillary Posterior Auricular + Retromandibular –> External Jugular –> Subclavian Vein Facial –> to the Internal Jugular

Question 13

Vidal Canal

Answer 13

aka the Pterygoid Canal Foramen in base of skull that transmits the Vidian nerve from the middle cranial fossa to the pterygopalatine fossa –> vidian nerve= the mix of the preganglionic parasymp & the post ganglionic symp fibers

Question 14

What layer of the scalp can be sutured?

Answer 14

Aponeurosis

Question 15

Which layers are cut off in scalping?

Answer 15

1st three layers –> Skin, dense CT, Aponeurosis