skeleton of a rat
rib
Thin curved bone articulating with the vertebral column and the sternum.
scapula
Large thin flat shoulder bone articulating with the humerus.
ilium
Large flat back bone articulating with the sacral vertebrae.
patella
Small flat slightly bulging triangular bone located on the inner limb and articulating especially with the femur.
obturator foramen
Opening located in the lower part of the bone formed by the ilium, the ischium and the pubis; it is partly sealed by a membrane and muscles.
femur
Long bone of the hind limb articulating especially with the patella.
pubis
Ventral bone posterior to the ilium.
ischium
Bone behind the ilium; the ilium, ischium and pubis fuse together to form a single bone to which the leg is attached.
phalanges
Bones articulating to form the skeleton of the digits.
tarsus
Part of the hind limb formed of several small bones at the juncture of the tibia and the metatarsus.
tibia
Long bone partly fused to the fibula and forming the inner limb between the femur and the tarsus.
fibula
Long bone partly fused to the tibia and forming the outer limb between the femur and the tarsus.
costal cartilage
Strong elastic tissue extending the front portion of the ribs to connect them to the sternum.
sacral vertebrae
Partly fused bony parts between the lumbar and caudal vertebrae.
thoracic vertebrae
Bony parts supporting the ribs between the cervical and lumbar vertebrae.
caudal vertebrae
Bony parts comprising the skeleton of the tail located at the terminal end of the vertebral column.
ulna
Long bone partly fused with the radius and forming the inner limb between the humerus and the carpus.
radius
Long bone partly fused with the ulna and forming the outer limb between the humerus and the carpus.
carpus
Portion of the pectoral fin formed of short bones between the radius, the ulna and the metacarpus.
sternum
Elongated flat bone to which the ribs in particular are attached and bearing a crest on its ventral surface.
phalanges
Bones articulating to form the skeleton of the digits.
clavicle
Long bone located in the front ventral portion of the body articulating with the sternum.
humerus
Bone of the forelimb articulating with the scapula, as well as with the radius and the ulna; it provides a large base for the muscles.
atlas
First cervical vertebra supporting the head and supported by the axis.
mandible
Toothed bone forming the lower jaw.
axis
Second cervical vertebra supporting the atlas; it allows the head to rotate.
lumbar vertebrae
Bony parts of the back located between the thoracic and sacral vertebrae.
cervical vertebrae
Bony parts of the neck comprising the upper terminal end of the vertebral column.
premaxilla
Bone forming the anterior portion of the upper jaw.
parietal
Flat bone of the upper portion of the skull.
maxilla
Toothed bone forming, with the premaxilla, the upper jaw.
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