Flashcards in Weekly Assesments week 2 Deck (62):
sickle-shaped fold of dura mater that lies within the longitudinal fissure and separates the two cerebral hemispheres
located on either side of the body of the sphenoid bone.
an opening in the base of the medial pterygoid process of the sphenoid bone that opens into the posterior aspect of the pterygopalatine fossa.
the plane that forms the lateral wall of the pterygopalatine fossa.
This artery breaks the plane of the pterygomaxillary fissure as it passes from the infratemporal fossa into the pterygopalatine fossa.
The maxillary artery
_______ is located on the medial wall of the pterygopalatine fossa and connects to the nasal cavity.
_________ passes through this opening to supply the nasal septum
_______ connects the middle cranial fossa with the pterygopalatine fossa
The temporalis muscle arises from floor of the temporal fossa and attaches to
the medial surface of the coronoid process and the anterior border of the ramus of the mandible.
Proximally, the masseter is attached to the ________ and distally to the __________of the mandible.
zygomatic bone and arch angle and lateral surface of the ramus
_________ attaches to the medial surface of the lateral pterygoid plate and inserts onto the medial surface of the ramus of the mandible.
The medial pterygoid
The _________ attaches to the greater wing of the sphenoid bone and lateral surface of the lateral pterygoid plate and inserts into the TMJ joint capsule and onto the neck of the condyloid process of the mandible.
lateral pterygoid muscle
muscle of facial expression and an accessory muscle of mastication
Between the inner layer of dura mater and the arachnoid mater is the
artificial subdural space is created between these meningeal layers as a result of trauma.
subdural hematoma near the superior sagittal sinus occured:
It is likely that the hemorrhage occurred as a result of tearing of bridging veins.
microscopic space lies between blood vessels that penetrate the brain and the substance of the brain itself
epidural hemorrhage is between
skull and dura
Bleeding into the ventricles or within the substance of the brain tissue is classified as an
subarchnoid space is normally filled with ________. Bleeding into this space can result from injury
to vessels that lie within this space, e.g. rupture of an aneurysm
maxillary nerve passes through the
foramen rotundum to supply sensory innervation to the mid-face region,
Damage to the foramen rotundum should result
in midface sensory defects.
The maxillary artery is one of the terminal branches of
the external carotid artery located just deep to the mandibular ramus
The middle meningeal artery passes through the
foramen spinosum in the base of the skull located posterolateral to the foramen lacerum.
This artery is the cause of epidural hematomas,
Middle Meningeal artery
geniculate ganglion is located
within the facial canal of the temporal bone
The carotid artery passes through
the carotid canal in the base of the skull towards the posterior aspect of the middle cranial fossa,
The middle cranial fossa contains the.
majority of the sphenoid bone, including the sella turcia, which is the bony structure that houses the pituitary gland
which is the bony structure that houses the pituitary gland
sella turcia--- middle cranial fossa
What vein can allow the transport of a retrograde infection originating in the superior labial vein region into the cavernous sinus.
How can the opthlamic vein allow the transport of a retrograde infection originating in the superior labial vein region into the cavernous sinus.
The inferior ophthalmic vein receives a small fraction of the drainage from the facial vein and the superior labial vein.
Superficial temporal vein drains
the temporal region of the scalp and portions of the forehead.
Does superficial temporal vein drain into the Superior sagittal sinus
maxillary vein lies deep within
the infratemporal fossa and has no connections with the drainage from the superior labial vein
venous drainage that lies deep within the brain. This vein does not drain any areas of the face, nor does it have direct connection with any vessels that drain the face.
The inferior sagittal sinus
What covers the anterior surface of the cornea and sclera;
The bulbar conjunctiva
lines the inner surfaces of the eyelids
the palpebral conjunctiva
What covers the ciliary body which is part of the vascular tunic.
What secretes aqueous humor into the posterior chamber of the eye.
The ciliary epithelium
What is a layer of the eyelid between the layer of muscle and conjunctiva. It connects the tarsal plates to the margins of the orbit.
The orbital septum
What two components make up the fibrous tunic of the eye.
Sclera and Cornea
Cornea is vascular/avaslucar?
avascular and major refractive properties
Vascular layer of eye includes:
Choroid, ciliary body and Iris
the neural layer of the eye is
the retinal layer
The anterior cavity contains
What nerves transmit postganglionic sympathetic fibers destined for the dilator pupillae muscle.
The long ciliary
What nerve carries fibers that regulate lacrimation. It also carries taste fibers from the palate
nerve of the pterygoid canal
What nerve trasnmits visual sensation from the retina to the thalamus.
The optic nerve
General sensation from the orbit, specifically the conjunctiva, is transmitted by
the ophthalmic division of the trigeminal nerve via the lacrimal and frontal branches.
infraorbital n. is a branch of ___ Although is supplies general sensation from the lower eyelid,
the location that the nasolacrimal duct drains into.
inferior nasal meatus
The opening of the nasolacrimal duct is partially covered by a mucosal fold called the valve of Hasner within the
inferior nasal meatus.
receives drainage from the sphenoid sinus and is found most superiorly in the nasal cavity.
The nasal meatuses are continuous with the________ that extends down into the throat, but not the_________
receives drainage from the maxillary sinuses via the semilunar hiatus, from the frontal sinuses via the frontonasal duct, and contains the ethmoidal bulla,
middle nasal meatus
often the artery injured in a posterior epistaxis.
sphenopalatine artey as it passes through the sphenopalatine foramen in the posterior nasal cavity
Because of its posterior location, damage to this blood vessel can cause drainage of the blood posteriorly into the throat.
is a branch of the maxillary artery that supplies blood to the superior teeth and gums, but does not contribute to the nasal blood supply
posterior superior alveolar artery
is a branch of the ophthalmic artery that travels inferiorly through the anterior ethmoidal canal to supply blood to the lateral wall and septum of the anterior nose.
anterior ethmoidal artery
is a bilateral mucosal epithelium lined cavity that is located deep to the cheeks and inferior to the bony orbit.
he maxillary sinus
Often, unilateral sinusitis can occur with infections, causing the backup of mucus, inflammatory debris, and infectious organisms within the cavity. This leads to pressure and discomfort felt in the area of the affected sinus. This patient’s sinus pressure in the cheek most closely corresponds with the
consists of numerous thin-walled mucosal epithelium-lined cavities that lie within the ethmoid bone. This bone is located in the superior portion of the nasal cavity and the lower portion of the orbits,
ethmoid sinus, also known as the ethmoidal air cells,