Surface Anatomy Skull, Face, Nose, & Sinuses Flashcards
name the bones
- frontal
- temporal
- zygomatic
- mid. concha (ethmoid)
- maxilla
- mandible
- nasal
- shenoid
- ethmoid
- vomer
Name the bones
- lacrimal
- zygomatic
- parietal
- sphenoid
- temporal
surface anatomy – face regions
surface anatomy: Lateral view of face regions
Surface Anatomy: nose and mouth
Nose Anatomy
Septum Anatomy
Identify the numbers
- sphenoid sinus
- soft palate
- hard palate
- sella turcica
- nasal bone
Identify the numbers
- vestibule
- frontal sinus
- sphenoid sinus
- superior concha (concha are also called turbinates)
- middle concha
- inferior concha
- eustachian tube orifice
identify the numbers
- orbits
- ?
- maxillary sinus
- ?
- superior conchat
- middle concha
- inferior concha
Identify the numbered arteries.
- anterior ethmoidal artery
- posterior ethmoidal artery
- greater palantine
- superior labial branch of facial artery
- septal branch of superior labial artery
which artery feeds the posterior and ethmoidal arteries?
ophthalmic artery
( which is a branch of the internal carotid artery)
the facial artery is a branch of which artery
External carotid artery
identify the numbered nerves
- anterior ethmoidal n.
- olfatory area
- nasopalantine n.
- branch of infra-orbital
Which area of the nose is innervated by CN V1 (opthalmic branch of Trigeminal n.)
antereosuperior part (front and top)
The nasopalatine n. arises from which cranial nerve
CN V2 (maxillary branch of trigeminal n.)
What ganglion is associated with CN V2
pterygopalatine ganglion
CN V2innervates what part of the nose
posteroinferior (1/2 - 2/3)
Nasal innervation lateral view
identify the numbered facial nerve branches
- temporal
- zygomatic
- buccal
- mandibular
- cervical
(To Zanzibar By Motor Car)
what motor function is the facial nerve (CN VII) associated with
Facial expression
what are a few tests that confirm funtionality of CN VII (facial)
show teeth
grimace
tightly close eyes
what is UMN lesion
Upper Motor Neuron Lesion -
Results from damage to neuronal cell bodies in the cortex or their axons that project via the corticobulbar tract through the posterior limb of the internal capsule to the motor nucleus of CN VII
Causes loss of voluntary control of only the lower muscles of facial expression on the side _ contralateral_ to the lesion
What is a LMN lesion
Lower Motor Neural lession
Results from damage to the motor nucleus of CN VII or its axons
Causes paralysis of all muscles of facial expression (including those of the forehead) ipsilateral to the lesion.
this is an example of what type of facial nerve lesion? which side has been damage?
a. LMN (notice the lower and upper asymmetry)
b. the right
what type of lesion to the facial nerve is this? Which side is damaged?
a. UMN — notice only the lower portion of face has assymetry
b. Left side
(UMN lesions are usually seen in stroke)
list a few facial muscle innervated by CN VII
platysma
orbicularis occuli
orbicularis orbis
occiptofrontalis
levator anguli oris
Facial artery schematic
You’re transporting a patient to PACU. You’re performing a jaw thrust because the patient is still obstructing. What else can be assessed by placing your middle and ring finger on the body of the mandible
palpate pulse via facial artery
Do the conchae project form the septum or from the lateral wall of nasal passage?
lateral wall
True or False. The upper, middle, and inferior conchae are all part of one structure.
false.
the upper and middle conchae are part of the medial aspect of ethmoid bone. the inferior concha is a separate structure
the vestibule of the nose is innervated by what nerve?
the infraorbital nerve
the hard palate is innervated by which nerve?
nasopalantine nerve
True or False. The facial nerve is both sensory and motor.
True.
what nerve transverses the parotid gland?
facial n.
What aspect of a face mask could potentially damage the facial nerve?
the face mask strap being adjusted to tightly
is the nose’s structural components bone or cartilage or both?
both
name some functions of nasal sinuses
lighten the skull
moisture air
what other cranial nerve supplies sensory innervation to the face
CN V (trigeminal n)
- Ophthalamic division (CN V1)—supplies forehead and upper eyelid.
- Maxillary division (CN V2)—supplies lower eyelid, cheek, nose, and upper lip
- Mandibular division (CN V3)—supplies lower jaw, lower lip and chin
Which sinuses are infra-orbital and which are supra-orbital?
infra-orbital = maxillary sinuses
supra-orbital = frontal sinuses
are the turbinates (a.k.a conchae) bone or cartilage?
bone
what are the components of the nasal septum?
- Perpendicular plate of the ethmoid bone
- Vomer
- Septal cartilage
