Head & N Flashcards
Shelf-like structures inside the nasal cavity?
Nasal conchae.
Inferior / middle/ superior
Function of the nasal conchae?
Increases area surface.
The specialized epithelium found in the nasal cavity?
Psuedostrafified ciliated columnar. (With cilia)
Function of goblet cell?
Secrete sticky mucous
The middle conchae drains into?
Hiatus semilunaris (all sinuses drain here)
Name 4 sinuses
Frontal, sphenoid, ethmoid, maxillary
Ethmoid sinus is
NOT paired sinus.
It’s diveded in number ours small department, air socks.
Where does the maxillary sinus drain into?
Hiatus semilunaris. (Middle conchae)
Location of the maxillary sinus? Which sinus is with tooth problem?
Maxillary sinus. Canines to 3rd molars.
Overall function of the sinuses?
Lighten the overall weight of the skull.
Referred pain.
Come from somewhere also.
Maxillary sinus infection, causing the patient feel like all the maxillary posterior teeth were hurting?
The same nerves, the brain does not recognize the nerve signal.
Origin of a muscle.
Least movable.
Insertion of a muscle.
More movable
Name the 4 muscles of mastication (act of chewing or grinding)
Masseter muscle.
Temporal muscle.
Medial Pterygoid muscle.
Lateral Pterygoid muscle.
What nerve innervates mastication muscles?
Trigenimal nerve (V)——mandibular division (V3)
The blood supply of mastication muscles?
Maxillary artery.
Masseter muscle, orgin / insertion
Originate —-the zygomatic arch.
Insert——the angle of the mandible on the lateral side.
Temporal muscle, origin/insertion.
Origin—-entire temporal fossa.
Insert—-coronoid process.
The medial Pterygoid muscle. Origin and insert.
Origin is from medial side of the lateral pterygoid plate.
Insert—-into the angle of the mandible on the medial side.
Lateral pterygoid muscle. Origin/ insert.
Origin —the larger from the lateral side of the lateral pterygoid plate.
Insert—-condyle.
Name the 4 suprahyoid muscles
Digastric muscle. Mylohyoid muscle. Geniohyoid muscle. Stylohyoid muscle.
Digastric muscle, origin and insertion.
Origin is digastric notch.
Insert into the digastric fossa.
How does the digastric muscle attach to the hyoid bone?
Attaches to the hyoid bone by a tendinous loop through it.
Digastric muscle. Two bellies for two nerves.
The anterior of the digastric muscle —-trigeminal nerve V3.
The posterior —-facial nerve VII.
What does the mylohyoid muscle form?
Floor of the mouth.
Stylohyoid muscle vs digastric muscle.
Stylohyoid muscle splits, and the digastric muscle passes through it.
Two muscle have intermedia tendon?
Digastric muscle and omohyoid muscle.
Jaw movements. Mandibular protrusion. Move forward.
Lateral pterygoid muscles acting together produce mandibular protrusion.
Mandibular retrusion. Move back.
The posterior or horizontal fibers of the temporal muscle, as well as the digastric muscle, accomplish retrusion of the mandible.
Lateral excursion. Side to side.
One of the lateral pterygoid muscles acting by itself accomplishes lateral excursion.
Elevation. Close.
The medial pterygoid , massager, and temporal muscles accomplish elevation.
Depression . Open.
By the interior head of the lateral pterygoid muscle plus the hyoid muscles.
left lateral movement of the mandible is accomplished by which muscle?
right lateral pterygoid.
The condyle of the mandible articulates with the ______ of the temporal bone to make up the temporomandibular joint.
mandibular fossa.
a small fibrous pad of dense collagen tissue found in the between the mandibular fossa and the condyle is
articular disc.
the TMJ most blood supply?
posterior to the disc
what is above and below the articular disc that secretes synovial fluid?
synovial cavities.
The area posterior to the articular disc which houses most of the TMJ’s blood and nerve supply is
retrodiscal pad.
what is the function of the synovial fluid?
lubricating liquid, allows the surface to rub over one another without irritation.
subluxation
a condition in which a person opens mouth too wide and is not able to close.
bruxism
grind teeth. mesial buccal.
muscles of facial expression
all are innervated by the VII facial nerve
corrugator muscle
the lateral part of the eyebrow, frown
procerus
medial end of the eyebrow, frown
which two muscles make you frown?
corrugator and procerus.
levator labii superioris
elevates upper lip
depressor labii inferioris
pulls lower lip down, pout.
zygomaticus minor
raises upper lip
zygomaticus major
elevates the corners of the mouth, smile
mentalis
pulls the skin of the chin up. make hard to clean.
buccinator
is not mastication but an accessory muscle.
5 soft palate muscles.
palatoglossal muscle. palatopharyngeal muscle. muscles of uvula. levator veli palatini. tensor veli palatini.
what is the space between the palatine tonsils called
fauces.
anterior pillar of the tonsils associated with
palatoglossal muscle.
of the 5 muscles of the soft palate, which one is nerve supply the V3 of the trigeminal?
tensor veli palatini
3 muscles dilate the pharynx
palatopharyngeal muscle. stylopharygneal muscle. salpingopharyngeal muscle.
arteries carry oxygenated blood, except for pulmonary artery. —it carries unoxygenated blood
veins carry unoxygenated blood. except for pulmonary vein, it carries oxygenated blood.
tri-cuspid (R. AV )valve is on right side of the body.
mitral valve (bi-cuspid) is on left side of the body
left common carotid comes directly off the aorta
right common carotid comes off the brachiocephalic artery.
anterior branch of external carotid
superior thyroid artery. lingual artery. facial artery.
medial branches of external carotid
ascending pharyngeal.
posterior branch of external carotid
occipital artery. posterior auricular artery
the external carotid ends by dividing into 2 terminal
the maxillary artery (supply the teeth). the superficial temporal artery.
lingual artery has 3 branches
dorsal lingual—posterior top/ dorsum of the tongue.
deep lingual ——anterior top/ dorsum of tongue.
sublingual –under/ventral side of the tongue.
the facial artery has one small branch
submental branch
3 major salivary glands
the parotid, the submandibular, and the sublingual
parotid gland.
watery serous secretion. 25%. stensons duct.
submandibular gland.
mixed secretion. 60-65%. whartons duct.
sublingual gland.
viscous secretion. 10%. bartholins duct.
von Ebner
wash off the taste buds.
what tendinous band separates the superior pharyngeal constrictor muscle and the buccinator muscle?
pterygomandibular raphe
pterygomandibular raphe separates which two muscle?
superior pharyngeal and buccinator muscle.
trigeminal V, V3 lingual
blocks sensation of anterior 2/3 of the tongue
facial nerve VII
taste on the anterior 2/3 of the tongue
glossopharyngeal, IX
sensation and taste on the posterior 1/3 of the tongue
petrosal
intervate the parotid gland.
trigeminal V, V3, inferior alveolar nerve, mylohyoid nerve
anterior belly of digastric
facial VII,
posterior belly of digastric
chorda typani,v3
where lingual and facial VII nerve join, supplies submandibular and sublingual glands.
V3,mandibular division
both, foramen ovalve
V2, maxillary division.
sensory. foramen rotundum
V1. opthalmic division
sensory. superior orbital fissure
