midterm 2 Flashcards
number of bones of axial skeleton
80
number of named openings of skill
85
cranial bones
frontal, 2 parietal, occipital, 2 temporal, sphenoid, ethmoid = 8 total
site of attachment for ligamentum nuchae
occipital bone
keystone cranial bone
sphenoid, articulates with all other cranial bones
3 pairs of sphenoid processes
great wings, lesser wings, pterygoid processes
facial bones
mandible, 2 maxillary, 2 zygomatic, 2 nasal, 2 lacrimal, 2 palatine, vomer, 2 inferior nasal conchae
largest, strongest bone of face
mandible
only freely movable joint in skill
temporomandibular
keystone facial bones
maxillary, articulate with all except mandible
lacrimal fossa
houses lacrimal sac
shape of vomer
plow
largest conchae
inferior nasal conchae
orbit bones
maxilla, lacrimal, ethmoid, frontal, sphenoid, zygomatic, palatine
medial wall of orbit
maxilla, lacrimal, ethmoid, sphenoid
floor of orbit
palatine, maxilla, zygomatic
later wall of orbit
frontal, sphenoid, zygomatic
roof of orbit
sphenoid lesser wings, frontal
roof, lateral, floor nasal cavity bones
ethmoid, palatine, maxillary, inferior nasal conchae
nasal septum bones
ethmoid, vomer, anterior septal cartilage
sinuses
frontal, ethmoid. maxillary, sphenoid
paranasal sinuses
small openings that connect sinuses to nasal cavity
movable base for tongue
hyoid bone
attachment for speech and swallowing muscles
hyoid bone
5 regions of vertebrae
cervical (7), thoracic (12), lumbar (5), sacrum (5 fused), coccyx (3-5 fused)
intervertebral disks made of
fibrocartilage
characteristics of cervical
transverse foramen, split spinous process
characteristics of thoracic
giraffe, spinour process points down, circular foramen
characteristics of lumbar
moose, flat short spinous process, triangle foramen
atlas
C1, no body, no spinous process, “yes”
axis
C2, dens projects into atlas, “no”
manubrium articulates with
clavicles and ribs 1 and 2
sternum body articulates with
costal cartilage of ribs 2-7
xiphoid process site of
site of muscle attachment
true ribs
1-7
false/floating
8-12, 11-12 floating
clavicle acromial end
flattened, smooth superior
clavicle sternal end
cone shaped
number of bones in upper limb
30 (humerus, radius, ulna, 8 carpals, 5 metacarpals, 14 phalanges)
head of radius articulates with
capitulum of humerus and radial notch of ulna