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biosystems
skeleton
56
Biology
Professional
09/15/2011

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Term
axial skeleton
Definition
bones of head, vertebral column, and thoracic cage. 80 bones
Term
appendicular skeleton
Definition
bones of limbs, including shoulder and pelvic girdle. 126 bones
Term
frontal bone
Definition
forehead bone
Term
parietal bone
Definition
top sides of skull. left and right
Term
occipital bone
Definition
back of lower skull
Term
temporal bone
Definition
lower sides of skull. left and right
Term
maxilla
Definition
bone below eyes and connects upper teeth
Term
zygomatic bone
Definition
cheek bones. left and right
Term
nasal bone
Definition
nose bone
Term
mandible
Definition
jaw bone
Term
saggital suture
Definition
separates left and right parietal bone
Term
coronal suture
Definition
where frontal and parietal bones meet
Term
squamous suture
Definition
outlines temporal and parietal bones
Term
lambdoid suture
Definition
where occipital and parietal bones meet
Term
hyoid bone (not a bone of the skull)
Definition
doesn't articulate directly with another bone. site of attachment for muscles of swallowing and speech
Term
vertebral column
Definition
transmits weight of trunk to lower limbs. protects spinal cord. 26 irregular bones. ligaments connect vertebrae.
Term
cervical vertebrae
Definition
vertebrae of neck. 7 bones. concave.
Term
thoracic vertebrae
Definition
vertebrae of thoracic cage. 12 bones. convex.
Term
lumbar vertebrae
Definition
vertebrae of lower back. 5 bones. concave.
Term
sacrum
Definition
bone inferior to lumbar vertebrae. 5 fused vertebrae. convex. forms posterior wall of pelvis.
Term
coccyx
Definition
terminus of vertebral column. 4 fused vertebrae. tail bone.
Term
intervertebral discs
Definition
provide cushion and support for vertebral column.
Term
transverse process
Definition
articulate with ribs in thoracic cavity.
Term
vertebral foramen
Definition
where spinal cord goes through vertebrae
Term
transverse ridges
Definition
sites of vertebral fusion
Term
apex
Definition
where coccyx and sacrum meet
Term
thoracic cage composed of
Definition
thoracic vertebrae, sternum, ribs and their costal cartilages.
Term
thoracic cage functions
Definition
protects vital organs, supports shoulder girdle and upper limps and provides attachment sites for many muscles
Term
sternum
Definition
flat bone containing manubrium, body, and xiphoid process.
Term
true ribs
Definition
costal cartilage connect with sternum. ribs 1-7
Term
false ribs
Definition
costal cartilage doesn't connect with sternum. 8-12
Term
pectoral girdle (shoulder bone)
Definition
attaches upper limbs to the body trunk.
clavicle (collar bone) and scapula (shoulder blade)
Term
acromial end
Definition
lateral side of clavicle
Term
sternal end
Definition
medial end of clavicle
Term
humerus
Definition
arm. head of humerus connects with pectoral girdle
Term
forearm
Definition
radius and ulna
Term
radius
Definition
part of the forearm bone that rotates. lateral in anatomical position
Term
ulna
Definition
elbow is part of ulna. medial in anatomical position
Term
carpal
Definition
8 bones in wrist
Term
metacarpal
Definition
5 bones in palm. 1-5 starting with thumb.
Term
phalanges
Definition
14 bones in fingers. proximal, middle and distal.
Term
pelvic girdle
Definition
secures lower limbs. 3 fused bones: ilium, ischium and pubis. connects to sacrum.
Term
ischium
Definition
butt bone. dorsal to pubis
Term
coxal bone
Definition
hip bone
Term
acetabulum
Definition
where ischium, pubis and ilium meet. head of femur inserted here.
Term
pubis
Definition
ventral to ischium
Term
ilium
Definition
superior to ischium and pubis
Term
femur
Definition
thigh bone. angled inward to give better center of balance.
Term
leg
Definition
tibia and fibula
Term
tibia
Definition
medial and ventral to fibula. can feel it all the way down your leg
Term
fibula
Definition
smaller than and lateral to tibia
Term
patella
Definition
knee cap
Term
tarsal
Definition
7 bones in ankle
Term
metatarsal
Definition
5 bones in foot
Term
phalanges
Definition
14 bones in toes
Term
costal cartilage
Definition
made of hyaline cartilage. on ribcage and sternum
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