LAB CH 8

skull sutures

coronal
sagittal
squamous
lambdoid

coronal suture

between frontal and parietal bones

sagittal suture

between parietal bones

squamous suture

Between parietal and temporal bones

lambdoid suture

between parietal and occipital bones

frontal bone

forehead

Frontal Bone Structures

glabella
superciliary arch
supraorbital margin
supraorbital foramen
frontal sinus

glabella

between eyebrows

superciliary arch

brow ridges

supraorbital margin

superior rim of the eye socket

supraorbital foramen

opening above each orbit

frontal sinus

SINUS LOCATED IN THE FOREHEAD OF THE SKULL

occipital bone

back of head

occipital bone structures

occipital condyle
foramen magnum
jugular foramen
hypoglossal canal
external occipital protuberance

occipital condyle

ridges on left and right of foramen magnum

foramen magnum

opening of the occipital bone through which the spinal cord passes

hypoglassal canal

hole in occipital on either side of the foramen magnum

external occipital protuberance

bump on back of head

fontanel

Anatomical feature of an infant's skull, the "soft-spot"

hyoid bone

a U-shaped bone in the neck that supports the tongue

NOT PART OF SKULL/VERTEBRAE

structure associated with vertebral column

intervertebral disc
intervertebral foramen

intervertebral disc

mass of fibrocartilage between adjacent vertebrae

intervertebral foramen

opening located between adjacent vertebrae for exit of a spinal nerve

Atlas (C1)

supports head, movement up and down

Axis (C2)

second cervical vertebrae. Allows the head to shake "no"

vertebra prominens (C7)

Transition from cervical to thoracic vertebral region
Spinous process longer than in other cervical vertebrae

sternum structures

manubrium
body
xiphoid process

manubrium

upper portion of the sternum

Parts of the Manubrium

suprasternal (jugular) notch
clavicular notch

jugular notch

concave upper border of the manubrium

clavicular notch

Site where manubrium articulates with the clavicles

parietal bone

forms the central side and upper back part of each side of the skull

lacrimal bone

small fragile bone making up part of the front inner walls of each eye socket

nasal bone

forms the bridge of the nose

vomer bone

forms the inferior portion of the nasal septum

inferior nasal conchae

The lowermost scroll-shaped bones on the sidewalls of the nasal cavity.

palatine bone

either of two irregularly shaped bones that form the back of the hard palate

zygomatic bone

cheek bone

temporal process of zygomatic bone

short extension from the zygomatic bone that forms the anterior portion of the zygomatic arch

maxilla structures

palatine process
infraorbital foramen of maxilla
incisive foramen of maxilla
alveolar processes
maxillary sinus

maxilla

upper jaw

palatine process

forms the anterior portion of the hard palate (roof) of the mouth also forms parts of the nasal cavity and eye orbits

infraorbital foramen of maxilla

opening under the orbit carrying the infraorbital nerves and blood vessels the the nasal region

incisive foramen of maxilla

marks the connection of the premaxilla and both palatine processes

alveolar process

Portion of the maxillary bones that form the support for teeth of the maxillary arch

maxillary sinus

sinus on either side of the nasal cavity below the eye

temporal bone

bone that forms parts of the side of the skull

temporal bone parts

styloid process
mastoid process
zygomatic process
external acoustic meatus
carotid canal
petrous part
squamous part

styloid process of temporal bone

pole-like process extending downward from the temporal bone on each side of the skull

mastoid process (temporal)

round projection on the temporal bone behind the ear

CORRECT ON

zygomatic process of temporal bone

a projection of the temporal bone that forms part of the zygoma

external acoustic meatus

Canal leading to eardrum and middle ear

carotid canal

passageway for internal carotid artery in temp lobe

petrous part of temporal bone

encloses structures of the inner ear

squamous part of temporal bone

Convex, irregular surface bordering squamous suture

true ribs

ribs 1-7; attach directly to sternum

false ribs

ribs 8-12; indirectly attached to sternum or not at all

floating ribs

Ribs 11-12

head of rib

posterior end of a rib that articulates with the bodies of thoracic vertebrae

neck of rib

between head and tubercle

shaft (body) of rib

main portion; long and slender

tubercle of rib

articulates with transverse process of thoracic vertebra

articular facet of rib

attach to transverse process

angle of rib

Where shaft begins curving

costal groove of rib

ridge along thin, inferior border

facet for costal cartilage

types of vertebrae

cervical
thoracic
lumbar
sacrum
coccyx

cervical vertebrae

C1-C7

thoracic vertebrae

T1-T12

lumbar vertebrae

L1-L5

Sacrum

bone formed from five vertebrae fused together near the base of the spinal column

sacrum structures

base
apex
superior articular facet
sacral foramen

base of sacrum

superior surface of S1

apex of sacrum

articulates with coccyx

superior articular facet sacrum

faces of paired processes that extend upward from the sacrum to articulate (join) with the inferior articular processes from the L5 vertebra

sacral foramen

holes in sacrum

Coccyx

four vertebrae fused together to form the tailbone

body of vertebrae

the thick, disc-shaped anterior portion which is the weight bearing portion

vertebral foramen

canal through which spinal cord passes

Transverse process of vertebra

forms joint with ribs in thoracic region, site for muscle attachment in lumbar region

Spinous process of vertebra

muscle and ligament attachment sites

lamina

part of the vertebral arch

top sides

pedicle of vertebrae

Portion of the neural arch just posterior to the body and anterior to the lamina

superior articular process

project vertically upward from the articular pillars between the pedicles and the laminae

inferior articular process

bony process that extends downward from the vertebral arch of a vertebra that articulates with the superior articular process of the next lower vertebra

????

transverse foramen

only found in the CERVICAL VERTEBRAE

dens

Name this specific part of C2.

anterior tubercle of C1

the bony protrusion at the front of the first cervical vertebrae

posterior tubercle of C1

origin of rectus capitis posterior minor

ethmoid bone

Light spongy bone between the eye sockets; forms part of the nasal cavities.

cribriform plate

The horizontal plate of the ethmoid bone separating the cranial cavity from the nasal cavity.

cribriform foramina

tiny holes in the cribriform plates that allow for the passage of filaments of cranial nerve I (olfactory nerve)

crista galli

the upper part of the perpendicular plate of the ethmoid bone of the skull

perpendicular plate of ethmoid bone

superior portion of the bony nasal septum

middle nasal concha

the lower of two bony plates projecting from the inner wall of the ethmoidal labyrinth and separating the superior from the middle meatus of the nose

superior nasal concha

Above middle nasal concha

ethmoidal sinus

Sinuses in the nasal cavity in between the frontal sinus and the sphenoidal sinus

sphenoid bone

forms part of the base of the skull and parts of the floor and sides of the orbit

sella turcica

houses the pituitary gland

superior orbital fissure

opening of the sphenoid bone.