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Skeletal System 1
BIOLN212 Bones for Exam 2
72
Anatomy
Undergraduate 1
10/21/2012

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Cards

Term
carpals
Definition
wrist bones
Term
parietal
Definition
top of skull
Term
occipital
Definition
back of skull
Term
temporal
Definition
sides of skull
Term
frontal bones
Definition
forehead and supraorbital margin
Term
foramen magnum
Definition
hole allowing spinal cord to exit the cranium
Term
occipital condyles
Definition
forms joint with first vertebra of column
Term
vertebral column
Definition
33 in infant, 26 in adult; intervertebral foramina allow passage of nerves
Term
external occipital protrudence and superial nuchal line
Definition
found at base of skull
Term
zygomatic process/arch
Definition
cheekbone
Term
mandibular fossa
Definition
forms temporomandibular joint with mandible
Term
external auditory canal
Definition
ear opening
Term
mastoid process
Definition
bony knob behind ear with air space
Term
styloid process
Definition
protrudes below skull and is muscle attachment
Term
sphenoid bone
Definition
keystone of cranium; includes sella turcica, supporting pituitary gland
Term
ethmoid bone
Definition
deepest bone in skull; perpendicular plate divides nasal cavity into L and R
Term
maxilla
Definition
upper jawbone; L and R fuse at midline in utero
Term
palatine bone
Definition
posterior 1/3 of hard palate
Term
zygomatic bone (2)
Definition
middle, major portion of zygomatic arch
Term
lacrimal bone (2)
Definition
forms anterior medial wall or orbits
Term
lacrimal fossa (2)
Definition
tears drain from here into the nasal cavity
Term
nasal bone (2)
Definition
forms bridge of nose, supports cartilage
Term
vomer
Definition
lower part of nasal septum, very thin
Term
mandible
Definition
lower jaw
Term
ramus
Definition
upward extension of jaw
Term
temporomandibular joint
Definition
formed by mandibular fossa and mandibular condyle
Term
mandibular foramen
Definition
injection site for local anesthesia in dental work, for teeth
Term
mental foramen
Definition
injection site for local anesthesia in dental work, for chin and lower lip
Term
mental symphysis
Definition
cartilaginous joint that links the mandible in early childhood
Term
inferior nasal conchae
Definition
part of nasal cavity that increases turbulence in inhaled air
Term
hyoid
Definition
suspended in neck superior to larynx; attaches sever neck/tongue muscles
Term
auditory ossicles
Definition
3 bones in ear
Term
spinal curves
Definition
4, help maintain balance, allow bipedal locomotion, increase strength
Term
cervical vertebrae
Definition
neck, C1-C7
Term
C1/C2
Definition
atlas/axis: "yes"/"no" movement
Term
thoracic vertebrae
Definition
chest, ribs attach here, T1-T12
Term
lumbar vertebrae
Definition
lower back, L1-L5
Term
sacral vertebrae
Definition
S1-S5, posterior surface of pelvic cavity
Term
coccygeal vertebrea
Definition
3-5 vertebrae fused to form coccyx, tailbone
Term
rib cage/bony thorax
Definition
12 thoratic bones + 12 paired ribs + sternum + costal cartilages
Term
costal cartilage
Definition
hyaline cartilage attached to ventral/anterior end of rib; lets rib cage change volume for breathing
Term
true ribs
Definition
1-7
Term
false ribs
Definition
8-10
Term
floating ribs
Definition
11-12
Term
intercostal space
Definition
space between ribs, intercostal muscle forms here
Term
appendicular skeleton
Definition
pectoral girdle, arms, pelvic girdle, legs
Term
clavicle
Definition
collarbone; subcutaneous
Term
subcutaneous
Definition
covered by skin, but not by muscle
Term
scapula
Definition
shoulder blade; articulates with clavicle and humerus
Term
brachium
Definition
upper arm
Term
humerus
Definition
longest bone of arm
Term
ulna
Definition
elbow, medial
Term
radius
Definition
thumb, lateral
Term
interosseus membrane
Definition
joins radius and ulna
Term
olecranon
Definition
elbow bone
Term
manus
Definition
hand, 19 bones
Term
metacarpals
Definition
5 bones in palm
Term
digit
Definition
finger
Term
phalanges
Definition
finger bones
Term
pelvic/coxal/hip bones
Definition
pelvis, sacrum, and coccyx
Term
pubic symphysis
Definition
attaches posteriorly to sacrum
Term
pelvic girdle
Definition
1. walking
2. support of upper body weight
3. protection of pelvic region/organs
4. protection of fetus
Term
femur
Definition
upper leg bone; largest in body
Term
acetabulum
Definition
along with head of femur form part of hip
Term
patella
Definition
knee cap
Term
tibia/fibula
Definition
lower leg bones, joined by interosseous membrane
Term
medial/lateral malleolus
Definition
ankle bbone
Term
tarsus
Definition
ankle
Term
calcaneus
Definition
heel bone, inferior to talus
Term
pes
Definition
foot
Term
metatarsals
Definition
5, foot bones
Term
phalanges
Definition
toe bones
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