Head Neck Anatomy

Front 1

where is Coronal suture

Back 1

lies between the frontal bone and the 2 parietal bones

Front 2

where is sagittal suture?

Back 2

lies between 2 parietal bones

Front 3

where is squamos (squamoparietal) suture?

Back 3

lies between 2 parietal bones and occipital bone

Front 4

where is lambdoid suture?

Back 4

lies between the two parietal bones and the occipital bone

Front 5

where is lambda junction?

Back 5

intersection of lambdoid and sagittal sutures

Front 6

where is bregma junction?

Back 6

intersection of sagittal and coronal sutures

Front 7

where is pterion junction?

Back 7

a craniometric point at the junction of the frontal, parietal, and temporal bones and the great wing of the sphenoid bone

Front 8

where is asterion junction?

Back 8

a craniometric point at the junction of the parietal, occipital, and temporal (mastoid part) bones

Front 9

where is nasion junction?

Back 9

a point on the middle of the nasofrontal suture (intersection of the frontal and two nasal bones)

Front 10

where is inion junction?

Back 10

most prominent point of the external occipital protuberance, which is used as a fixed point in craniometry

Front 11

What structures included in anterior cranial fossa?

Back 11

cribriform plate, foramen cecum, anterior and posterior ethmoidal foramina

Front 12

what passes through cribriform plate?

Back 12

olfactory nerves

Front 13

what passes through foramen cecum?

Back 13

occasional small emissary vein from nasal mucosa to superior sagittal sinus

Front 14

what passes through anterior and posterior ethmoidal foramina?

Back 14

anterior and posterior ethmoidal nerves, arteries, and veins

Front 15

what structures are in middle cranial fossa?

Back 15

optic canal
superior orbital fissure
foramen rotundum
foramen ovale
foramen spinosum
foramen lacerum
carotid canal
haitus of facial canal

Front 16

what passes through optic canal?

Back 16

optic nerve, opthalmic artery, and central artery and vein of the retina

Front 17

what passes through superior orbital fissure?

Back 17

oculomotor, trochlear, and abducens nerves; ophthalmic division of trigeminal nerve; and ophthalmic veins

Front 18

what passes through foramen rotundum?

Back 18

maxillary division of trigeminal nerve

Front 19

what passes through ovale?

Back 19

mandibular divison of trigeminal nerve, accessory meningeal artery, and occasionally lesser petrosal nerve

Front 20

what passes through foramen spinosum?

Back 20

middle meningeal artery

Front 21

what passes through foramen lacerum?

Back 21

nothing passes through this foramen, but the upper part is traversed by the internal carotid artery and greater and deep petrosal nerves en route to the pterygoid canal

Front 22

what passes through carotid canal?

Back 22

internal carotid artery and sympathetic nerves (carotid plexus)

Front 23

what passes through hiatus of facial canal?

Back 23

greater petrosal nerve

Front 24

What structures are in the posterior cranial fossa?

Back 24

internal auditory meatus
jugular foramen
hypoglossal canal
foramen magnum
condyloid foramen
mastoid foramen

Front 25

what passes through internal auditory meatus?

Back 25

facial and vestibulocochlear nerves and labyrinthine artery

Front 26

what passes through jugular foramen?

Back 26

glossopharyngeal, vagus, and spinal accessory nerves and beginning of internal jugular vein

Front 27

what passes through hypoglossal canal?

Back 27

hypoglossal nerve and meningeal artery

Front 28

what passes through foramen magnum?

Back 28

spinal cord, spinal accessory nerve, vertebral arteries, venous plexus of vertebral canal, and anterior and posterior spinal arteries

Front 29

what passes through condyloid foramen?

Back 29

condyloid emissary vein

Front 30

what passes through mastoid foramen?

Back 30

branch of occipital artery to dura mater and mastoid emissary vein

Front 31

What are the foramina in front of the skull?

Back 31

zygomaticofacial foramen
supraorbital notch or foramen
infraorbital foramen
mental foramen

Front 32

what passes through zygomaticofacial foramen?

Back 32

zygomaticofacial nerve

Front 33

what passes through supraorbital notch of foramen?

Back 33

supraorbital nerve and vessels

Front 34

what passes through infraorbital foramen?

Back 34

infraorbital nerve and vessels

Front 35

what passes through mental foramen?

Back 35

mental nerve and vessels

Front 36

What are the foramina in the base of the skull?

Back 36

petrotympanic fissure
stylomastoid foramen
incisive canal
greater palatine foramen
lesser palatine foramen
palatine canal
pterygoid canal
sphenopalatine foramen

Front 37

what passes through petrotympanic fissure?

Back 37

chorda tympani and often anterior tympanic artery

Front 38

what passes through stylomastoid foramen?

Back 38

facial nerve

Front 39

what passes through incisive canal?

Back 39

nasopalatine nerve and terminal part of the sphenopalatine or greater palatine vessels

Front 40

what passes through greater palatine foramen?

Back 40

greater palatine nerve and vessels

Front 41

what passes through lesser palatine foramen?

Back 41

lesser palatine nerve and vessels

Front 42

what passes through palatine canal?

Back 42

descending palatine vessels and the greater and lesser palatine nerves

Front 43

what passes through pterygoid canal?

Back 43

runs from the anterior wall of the foramen lacerum to the pterygopalatine fossa and transmits the nerve of the pterygoid canal (vidian nerve)

Front 44

what passes through the sphenopalatine foramen?

Back 44

sphenopalatine vessels and nasopalatine nerve

Front 45

Describe the foramen cecum?

Back 45

is a small pit in front of the crista galli between the ethmoid and frontal bones
may transmit and emissary vein from the nasal mucosa and the frontal sinus to the superior sagittal sinus

Front 46

Describe the crista galli?

Back 46

provides attachment for the falx cerebri

Front 47

describe cribriform plate of the ethmoid bone?

Back 47

is perforated by 15-20 foramina, supports the olfactory bulb, and transmits olfactory nerves from the olfactory mucosa to the olfactory bulb

Front 48

descibe the anterior clinoid process

Back 48

provides attachment for the free border of the tentorium cerebelli

Front 49

describe posterior clinoid process

Back 49

are 2 tubercles from each side of the dorsum sellae
provide attachment for the attached border of the tenrorium cerebelli

Front 50

discuss middle clinoid process

Back 50

is a small inconstant eminence on the body of the sphenoid, posteriolateral to the tuberculum sellae

Front 51

discuss the lesser wing of the sphenoid bone

Back 51

forms the anterior boundary of the middle cranial fossa

forms the sphenoidal ridge separating the anterior from the middle cranial fossa

forms the boundary of the superior orbital fissure (the space between the lesser and greater wings)

Front 52

discuss the greater wing of the sphenoid bone?

Back 52

forms the anterior wall and the floor of the middle cranial fossa

presents several openings: the foramen rotundum, foramen ovale, and foramen spinosum

Front 53

discuss the hypophyseal fossa?

Back 53

located in the sella turcica (turk's saddle) of the sphenoid bone

accommodates the pituitary gland or the hypophysis

Front 54

discuss the jugum sphenoidale?

Back 54

is a portion of the body of the sphenoid bone connecting the two lesser wings, and forms the roof for the sphenoidal air sinus

Front 55

discuss the clivus

Back 55

is the downward sloping surface from the dorsum sellae to the foramen magnum

is formed by a part of the body of the sphenoid and a portion of the basilar part of the occipital bone