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102 Cards in this Set

  • Front
  • Back
Muscles of mastication are (4)____
Masseter muscle, Temporalis muscle, Lateral pterygoid, Medial pterygoid,
Muscles of mastication are innervated by
V3 (mandibular branch) of Trigeminal Nerve
The superficial portion of the masseter muscle originates in _____ and inserts into _____
I:angle of mandible
The deep portion of the masseter muscle originates in ____ and inserts into ______
O:zygomatic arch
I:ramus of coronoid process of mandible
The function of the masseter muscle is to ______
Fxn: closes mandible
The temporalis muscle originates in ____, and inserts into________and functions to _______
O:temporal fossa
I:coronoid process and ramus of mandible
Fxn: closes jaw
The lateral pterygoid muscle originates in _____, and inserts into _______, and functions to _______
O:sphenoid bone
I: condyle of mandible
Fxn: protrusion of mandible
The medial pterygoid muscle originates in(4) _____, and inserts into ______, and functions to _______.
O:sphenoid bone, palantine bone, maxilla, pterygoid fossa
I:ramus and angle of mandible
Fxn: pulls mandible to opposite side
Blood supply of the face is through the ______, which is a branch of the __________
Facial artery
External Carotid artery (which came from comon corotid - right brachiocephalic, left aorta)
The facial artery exits ______ Passes _____ ascends upward into _________
submandibular gland
anterior to masseter muscle
medial corner of eye
Branches of the facial artery (4)
Submental (chin), inferior labial artery (inferior lip), superior labial artery (upper lip), lateral nasal artery (nose)
Bifurcation of facial artery - terminal branches
Superficial temporal artery,
Maxillary artery
Superficial temporal artery originates in the _____ and courses ________ to serve the _________
O:parotid region
Fxn: courses in front of external ear and serves scalp
Superficial temporal artery branches into ______, & terminates with ____ & ____ branches
Transverse facial artery
frontal & parietal
Maxillary artery branches are
Middle menigeal artery, muscular branches of mastication, inferior alveloar artery, buccal branches, superior (anterior, middle and posterior) alveolar arteries
Middle menigeal artery passes through_____, and serves _______
Foramen spinosum
Feeds meninges
Inferior alveolar artery follows ______, enters _____ and serves ______
Inferior alveolar nerve
Mandible (mandibular foramen)
Teeth & Mandble
Buccal branches serve (3)
Buccal area, buccal fat pad, and buccinator muscle
Seperior Alveolar Arteries serve (2)
Teeth & maxilla
Branches of anterior side of external carotid are (3)
Superior Thyroid
Brain blood supply is through(3)
Circle of Willis
Vertebral Arteries
Internal Carotid Artery
Vertebral arteries are branches of _____
Subclavian arteries
Vertebral arteries ascend in _____, go through _______, then _______ to get into scull
Transverse foramen of cervical vertebra
Magnum foramen
Vertebral arteries fuse to form
Basilar artery
Basilar artery is located ______ and bifurcates to form ________
Pontine sulcus on ventral side of pons
2 Posterior cerebral arteries(superior & anterior)
Branches of vertebral arteries are
Pontine arteries
Posterior infereior cerebellar arteries
Internal carotid arteries pass through ______
carotid canal
Internal carotid arteries bifurcate into ____ & _____
middle & anterior cerebral arteries, Posterior communicating arteries
Anterior communicating arteries branch off of ___ and connect _____
Anterior cerebral arteries
Connect anterior cerebral arteries
Posterior communicating arteries connect______ with _________
Posterior cerebral with Internal Carotid
Single bones of the scull are
Frontal, occipital, ethmoid, sphenoid
Paired bones of the scull are
temporal, parietal
The 5 layers of the SCALP are
Skin, Connective Tissue, Aponeurosis, Loose Connective Tissue, Periosteum of Skull
This layer contains majority of vessels
2nd layer - Connective tissue
Muscles are found in the
3rd layer - Aponourosis
The primary muscle of the scalp is the ________
Occipital frontalis muscle
Occipitalis lays____ it is ____, and innervated by _______, its fxn is to _____
Superior to occipital bone, bilateral, temporal branch of facial nerve
Cushion skull
The occipitalis is connected to frontalis by a tendon called
Epicranial Aponeourosis
Frontalis muscle is ____, covers______, and is innervated by _______, its fxn is to ________
Bilateral, frontal bone, temporal branch of facial nerve, cushion skull
Loose connective tissue contains ______, which connect to ________
Emissary veins, superficial veins of the scalp
What two systems communicate with emissary veins
Diploic veins of the skull & Intracranial Venous sinuses
Arterial blood supply of the skull is though _____&______
External & Internal carotid arteries
Branches of the External Carotid arteries are
Occipital a, Posterior auricular a, Superficial temporal a
Branches of Internal Carotid arteries are _______ which then branch into _____ & _____
Ophthalmic a,
Supraorbital a, & Supratrochlear a
Anterior 2/3 of scalp is innervated by ______, Posterior 1/3 of scalp is innervated by ________
Trigeminal nerve
Cervical plexus
Boundaries of the temporal region are
Superior - superior temporal bone
Inferior - zygomatic arch
Temporalis muscle
Superficial temporal artery
The infratemporal region is located ____, and is innervated by _____
Between pharynx(medial) and mandible (lateral)
Mandibular division of trigeminal nerve
Mandibular division of Trigeminal Nerve contains 3 sections
Anterior Division
Posterior Division
Trunk division of mandibular nerve contains ____ & nerve to ____
Menigeal nerve (sensory)
Nerve to the medial pterygoid muscle (motor)
Meningeal nerve innervates ____ for _____, and enters scull through ______
Foramen Spinosum
Branches of the anterior division of the mandibular nerve are
Masseteric nerves (motor)
Temporal nerve (motor)
Buccal nerve (sensory)
Nerve to lateral pterygoid muscle (motor)
Branches fo the posterior divisionof the mandibular nerve are
Auriculotemporal (sensory)
Lingual (sensory)
Inferior Alveolar (sensory)
Auriculotemporal nerve innervates
Parotid gland, TMJ, skin of auricle, tympanic membrane, area around acoustic meatus
Lingual nerve innervates____,enters at ____, and is superior to____
anterior 2/3 of toungue for general sensation, level of 3rd lower mole, inferior alveolar nerve
Inferior alveolar nerve innervates ______, and enters through _______
teeth and mandible, mandibular foramen
Chorda tympani nerve is located in _____, belongs to ____, and hooks into _____
infratemporal region, C7, lingual nerve
Chrda tympani innervates _____ through ____innervation
anterior 2/3 of tongue for taste, submandibular, lingual, sublingual glands, Parasympathetic
Optic ganglia is associated with ____, innervates ____ through ______innervation
CNIX (glossopharyngeal)
parotid gland
Blood supply to infratemporal region is through
Maxillary artery
Veinous drainage of infratemporal region is through
Retromandibular vein
formed by fusion of maxillary v & superficial temporal v
Parotid region is located
between the mastoid process of temporal bone and nexk and ramus of mandible
The Parotid region contains
Parotid gland, submandibular gland, lingual glands, Parotid duct, retromandibular v, external carotid, auriculotemporal nerve (sensory), great auricular nerve (sensory), glossopharyngeal nerve (parasympathetic)
The largest accessory structure of digestive system is ____ and it is described as ____
Parotid gland
Exocrine, lobated, yellow, covered by parietal sheath
Parotid gland produces ____ which helps _____
digest carbs
Saliva fxns to
keep oral cavity moist and lubricate food
Parotid duct (stenson duct) is ___long, cosses anterior surface of ____, goes through___, enters at ____
masseter muscle
2nd molar
Parotid region is innervated by ____, through ____ innervation
C9 - glossopharyngeal nerve
Facial nerve splits in
Parotid gland
Dura, Arachnmoid, Pia matters are ____ in nature, involved in distribution of ______, involved with _____ of brain
Cerebral Spinal Fluid
Venous drainage
Dura matter is ____, the outer layer is also called____ the inner leayer is also called _____
endosteal or periosteum
true dura, meningeal layer, cerebral layer
The outer layer of dura doesn't extend through____, is not continuous with ____
magnum foramen, dura of spinal cord
The inner layer of dura mater is __,_,_ and does extend through ____, continues as ____
dense, strong, fibrous
magnum foramen
dura of spinal cord
The inner layer of dura mater forms _____ to protect_____ as they pass through ____
tubular sheaths
cranial nerves
foramen of skull
Septae formed by true dura are (4)
Falx cerebri
Tentorium cerebelli
Falx cerebelli
Diphragmatic sellae
Falx cerebri is a ____ of dura which lies _____ and separates ______
crescent fold
in midline
2 cerebral hemispheres
The falx cerebri is ___ shaped and attached to ____
internal occipital crest
Venous sinuses located in falx cerebri are (3)
Superior sagital sinus (on attached margin)
Inferior Sagittal sinus (on free margin)
Straight Sinus
Tentorium cerebelli covers ___ and _____, supports _____ of brain, and is attached to _____&____
posterior craninal fossa & superior aspect of cerebellum
occipital lobes
falx cerebri and falx cerebelli
Sinuses involved in tentorium cerebelli are (3)
Straight Sinus
Superior Petrosal Sinus
Transverse Sinus
Falx Cerebelli is a ____fold of dura, separates____, is associated with _____ and is attached to ______
cerebellar hemispheres
occipital sinus
internal occipital crest
Dura is innervated by
Branches of meningeal nerves (V3 of trigeminal nerve)
Blood flow of meninges of brain is through
Middle meningeal artery - branch of maxillary artery
Middle meningeal vein - tributary to pterygoid venous plexus
Falx structures are in place to ___
Prevent rotary displacement of brain
Arachnoid layer is ___, ___, ___
avascular, thin, delicate
Subdural space is _____, it is clinically imporatant because it identifies
potential space between dura and arachnoid
subdural hematomas
Subarachnoid space is _____, it contains____
true space between pia and arachnoid mater
Cerebral spinal fluid
Cisterns are ______, _____flows between them
places where subarachnoid space becomes large
cerebral spinal fluid
3 Cisterns are ___, ___, ___
Cisterna magna
cisternal pontis
cisterna interpenduncularis
Cisterna magna is located between ___ & its 3 sides are ____,____, ____ these facilitate _____
inferior surface of cerebellum and roof of 4th ventricle
2 foramina luschka, 1 foramina magendie,
escape of csf from 4th ventricle to subarachnoid space
Arachnoid villi are ____, groups of these villi are____, they are most numerous with ____
projections of subarachnoid space into venous sinuses
arachnoid granulations
superior sagittal sinus
All major superficial cerebral vessels are located in ___
subarachnoid space
CSF is produced by____, then leaves through _____ to ____
Chorooid plexus in located in the roof of each ventricle
4th ventricle
subarachnoid space
Pia mater is the ___ layer, it is ___, it follows ___ and ___, it is ___ adhered to the brain
gyri and sulci
Venous drainage of brain is through ____ and ____
Veins and sinuses
Veins have tributaries from ____, Sinuses have tributaries from (4)___
veins of brain, diploes of the skull(bone marrow), orbit of eye, inner ear
2 sets of veins from brain
Superficial veins are located ___of brain, located in ____, follow___, tributaries of ____
on top
subarachnoid space
Deep veins are located ____, smaller veins course towards _____, the larger ones unite and form ____ which is a tributray of ____
within brain tissue
lateral ventricles
Great Cerebral Vein
Straight Sinus
The Great Cerebral Vein fuses with ______ and is the only way for blood to leave brain
Inferior sagital sinus
Sinuses are
intradural spaces where layers didn't stay together
There are 2 lateral ventricles in ____, 3rd ventricle is also in rt & lt _____, 4th ventricle is located in _____
Cerebral hemispheres
Cerebral hemispheres
Brain stem
The 3rd ventricle is connected to the 4th ventricle through ____
Cerebral Aquaduct