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47 Cards in this Set

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Blood supply to the anterior half of the nose comes from which arteries? (2)
OPTHALMIC ARTERY
1. Dorsal nasal artery
2. External nasal artery
The opthalmic artery is a branch from which artery?
Internal carotid
Which 2 main arteries supply the posterior half of the nose?
1. FACIAL ARTERY
2. MAXILLARY ARTERY
Which branches come from the facial artery? (4)
1. Superior labial
2. Septal artery
3. Lateral nasal artery
4. Angular artery
Which branches come from the maxillary artery to supply the nose? (2)
1. Infraorbital artery
2. Nasal branches
The facial & maxillary arteries are branches off of which artery?
External carotid
Which 2 nerves supply the external nose?
1. Opthalmic division of V
2. Maxillary division of V
What branches of V-1 supply the external nose? (4)
1. Supraorbital
2. Supratrochlear
3. Infratrochlear
4. External nasal branch
What branch of V-2 supplies the external nose?
Infraorbital nerve-- lateral nasal branches
What are the muscles of the external nose?
1. Procercus
2. Nasalis-- transverse & alar part
3. Depressor septi
4. Levator labii superioris alaeque nasi
THe muscles of the external nose are supplied by which nerve?
CN VII - FACIAL
Which bones form the ROOF of the nasal cavity? (4)
1. Cribriform plate of ethmoid
2. Nasal
3. Frontal
4. Body of sphenoid
Which bones form the FLOOR of the nasal cavity? (2)
1. Palatine process of maxilla
2. Horizontal plate of palatine bone
(same as hard palate)
Which bones form the LATERAL wall of the nasal cavity? (6)
1. Medial surface of maxilla
2. Nasa
3. Ethmoid-- sup. & mid concha
4. Inferior nasal concha
5. Lacrimal
6. Sphenoid
Which bones form the MEDIAL wall of the nasal cavity (nasal septum)? (3)
1. Septal cartilage
2. Perpendicular plate of ethmoid bone
3. Vomer
Which nerves branch from V-1 to supply the anterior nasal cavity? (4)
1. Anterior ethmoidal
2. External nasal branch
3. Lateral nasal branches
4. Internal nasal branches
Which nerves branch from V-2 to supply the posterior nasal cavity? (4)
1. Lateral superior posterior nasal branches
2. Inferior posterior nasal branches
3. Pterygopalatine ganglion
4. Nasopalatine
Which arteries make up Kiesselbach's area? (2)
1. Septal branch of the supeior labial artery (from facial artery)
2. Sphenopalatine artery (from maxillary artery)
Main blood supply to nasal cavity is which artery?
Sphenopalatine artery
Anteior venous drainage of nasal region is via?
Opthalmic or facial veins
Posteior venous drainage of nasal region is via?
Ptyergoid plexus
Anterior part of nasal cavity drains to which lymph nodes?
Submandibular lymph nodes
Posterior part of nasal cavity drains to which lymph nodes?
Deep cervical nodes
Which paranasal sinus is NOT present at birth?
Frontal sinus
What are the boundaries of the frontal sinus?
Orbit & anterior crainal fossa
Frontal sinus drains to?
Middle meatus
What is the innervation of the frontal sinus? (2)
OPHTHALMIC V-1
1. Frontal nerve
2. Nasocilliary nerve (ant. ethmoidal)
What are the anatomic landmarks of the maxillary sinus (4)
1. Orbit
2. Teeth
3. Nasal cavity
4. Cheeck
Maxillary sinus drains to?
Middle meatus
Which sinus is a HIGH drainage site?
Maxilary sinus
What is prone to blow out fractures due to it's thin roof?
Maxillary sinus
Blow out of maxillary sinus can cause damage to which nerve?
Infraortbital nerve
What is the innervation of the maxillary sinus? (4)
MAXILLARY NERVE V-2
1. Infraorbital
2. PSA, MSA, ISA
What sinus rapidly develops at puberty?
Sphenoid sinus
What structures are adjacent to the sphenoid sinus?
1. Internal carotid
2. CN I
3. Cavernous sinus (III, IV, VI, V-1, V-2)
The sphenoid sinus drains to?
Sphenoethmoid recess
What is the innervation of the sphenoid sinus? (2)
OPHTHALMIC V-1
1. Nasocilliary (post. ethmoidal)
MAXILLARY V-2
2. Orbital branch
Which sinus is very thin & allows easy spread of tumors or infection?
Ethmoid sinus
What structures are adjacent to the ethmoid sinus? (2)
1. Orbit
2. Anterior cranial fossa
The anterior ethmoid cells drain to?
Middle meatus
The middle ethmoid cells drain to?
Middle meatus
The posterior ethmoid cells drain to?
Superior meatus
What is the innervation of the ethmoid sinus?(3)
OPHTHALMIC V-1
1. Nasocilliary (Ant & Post ethmoidal)
MAXILLARY V-2
2. Orbital branch
3. Posterior superior nasal
Which structure drains to inferior meatus?
Nasolacrimal duct
Which structures drain to middle meatus? (4)
1. Frontal sinus
2. Maxillary sinus
3. Anterior ethmoid cells
4. Middle epthmoid cells
Which structure drains to middle meatus?
Posterior ethmoid cells
Which structure drains to sphenoethmoid recess?
Sphenoid sinus