Pelvic Limb 1 Flashcards
What is the fastest animal?
cheetah
How fast do cheetahs run?
65 mph
Can run 25 feet 3 times per second
How can cheetahs run as fast as they do?
They have a flexible lumbar spine, so their pelvic limbs can be brought cranial to the point of the shoulder
What function does the cheetah’s long tail have?
Acts as a rudder to maintain control and balance at full speed
What is the brachium homologous to on the pelvic limb?
thigh
What is the antebrachium homologous to on the pelvic limb?
crus
What is the carpus homologous to on the pelvic limb?
tarsus
What is the metacarpus homologous to on the pelvic limb?
metatarsus
What is the manus homologous to on the pelvic limb?
pes
What are the bones of the brachium/thigh?
humerus/femur
What are the bones of the antebrachium/crus?
radius and ulna/tibia and fibula
What are the bones of the carpus/tarsus?
carpals/tarsals
What are the bones of the metacarpus/metatarsus?
metacarpals/metatarsals
What are the bones of the digits called generally?
phalanges
What is plantigrade?
entire manus or pes contacts the ground
What are examples of plantigrade animals?
Man, armadillo, primate, bear
What is digitigrade?
Body weight is carried by the digits
What are examples of digitigrade animals?
coyote, dog, cat, cheetah
How many of the fastest animals are digitidrage?
4/10
What is unguligrade?
“Hoofed” animals, carries weight to ground through a single phalanx (P3) for each digit
What are examples of unguligrade animals?
pronghorn, horse, ox, pig, goat, sheep
How are limb modifications related to efficiency of locomotion?
As the length of the MT/MC region increases, so does efficiency
(plantigrade < digitigrade < unguligrade)
How many of the fastest animals are unguligrade?
6/10
How long can a cheetah maintain its speed?
for 300 yds