Lab 5: The appendicular skeleton Flashcards
Plantigrades
entire sole of foot in contact with the ground
Digitigrade
only the digits bear weight
ex. cat
unguligrade
only the tips of the toes bear the weight
ex. horses
Forelimbs are composed of
humerus
two bones in the forarm-radius(larger) to ulna(posterior to raduis)
Wrist bones are the carpals and the digits are composed of metacarpals and phalanges
Hind limbs are composed of
femur and anterior tibia and posterior fibula. Ankle is composed of tarsals with the digits of metatarsals and phalanges
Cartilage replacement bones are?
Coracoid
scapula
suprascapula
Dermal investing bones are?
Clavicle
cleithrum
supracleithrum
post-temporal
Cartilaginous fishes posses
catilage elements alone and no dermal bones
Quadrupedalism
locomotion through four limbs
Bipedalism
two limbs