Nasal cavity

Question 1

the nasal cavity…

Answer 1

• divided by the nasal septum
• lined with respiratory mucosa
• posterior aspect continues with the nasopharyns
• communicates with the paranasal sinuses by the orficies in the lateral wall

Question 2

parts of the superior wall of nasal cavity

Answer 2

• nasal bone
• nasal part of frontal bone
• cribriform plate of ethmoid bone
• body of sphenoid bone most post. part

Question 3

parts of the inferior wall of nasal cavity

Answer 3

• palatine process of maxilla
• horizontal plate of palatine bone
• incisive bone

Question 4

parts of the lateral wall of the nasal cavity

Answer 4

• maxilla
• lacrimal bone
• inferior nasal concha
• perpindicular process of the palatine bone

Question 5

what is the medial wall of the nasal cavity divided into?

Answer 5

• a bony part

- a cartilaginous part

Question 6

the bony part of the medial wall of the nasal cavity includes?

Answer 6

• perpindicular plate of ethmoid bone
• vomer
• nasal crest of maxilla and nasal crest of palatine bone

Question 7

the cartilage part of the medial wall of the nasal cavity

Answer 7

-the cart. parts is between the vomer and the perpeindicular plate of the ethmoid and nasal bone with completes the nasal septum

Question 8

what is the sphenoethmoidal recess

Answer 8

a cleft situatied between the sup. nasal concha, nasal septum and body of the sphenoid bone to when the sphenoid sinuses drain

Question 9

what is located below the sphenoethmoidal recess

Answer 9

the sphenopalatine foramen

Question 10

where is the sup. nasal meatus located?

Answer 10

under the sup. nasal concha into which the ethmoidal air cells open to

Question 11

where is the middle nasal meatus located?

Answer 11

inferior portion of the ethmoid bone wich forms the uncinate process and projects in to the middle nasal meatus and cover the orifice of maxillary sinus

Question 12

what forms the ethmoidal bulla and what does it bulge over

Answer 12

the middle ethmoidal air cells and bulges over the uncinate process

Question 13

where is the inferior nasal meatus located

Answer 13

under the inferior nasal concha, into which the nasolacrimal duct open to

Question 14

where do the 3 nasal meatus’s open into

Answer 14

common nasal meatus

Question 15

the nasal mucosa in the lateral wall has 3 parts

Answer 15

• nasal vestibule
• repiratory region
• olfactory region

Question 16

arterial supply of the lateral wall of the nasal cavity

Answer 16

• anterior and posterior ethmoidal arteries
• sphenopalatine artery
• lateral nasal brance of facial artery
• alar branch of superior labial artery

Question 17

venous drainage of the the lateral wall of the nasal caity

Answer 17

• opthalmic vein
• pterygoid venous plexus
• facial vein

Question 18

innervation of the lateral wall of the nasal cavity

Answer 18

• opthalmic nerive

- maxillary nerve

Question 19

arterial supply of the nasal septum

Answer 19

• ant. post ethmoidal a.
• sphenopalatine a.
• sup. labial a.

Question 20

venous drainage of the nasal septum

Answer 20

• opthalmic v.
• pterygoid venous plexus
• facial v. via the nasal vestibule

Question 21

innervation of the nasal septum

Answer 21

• ophthalmic n.
• maxillary n.
• olfactory n.

Question 22

lymphatic drainage of the nasal cavity

Answer 22

• anterior part of the nose drains in to the sub mandibular and superficial lymph node of the ant. neck
• post. part of the nose drains in to the retropharyngeal and deep cervical lymph node