Primates Bones Structure Flashcards

quad
Terms Definitions
Vertical Clinger and Leaper
Tarsier
Slow Climbing
Slow and slender lorises
Brachiation, Arm Slining
Gibbons and Siamang
Quadrumanuel
Orangutan
Bipedalism
Humans
Quadrupedalism
All fours: mouse and dwarf lemurs
Knuckle walking
Chimps, Gorilla
Palmigrade
Walk w. both hands and feet flat on ground: Lemurs
Digitigrade
Walk on fingertips: Baboons
Shape of vertebral column:
Quadruped: single curveBiped: S-shaped
Size of vertebral bodies
Quadruped: similar in size from neck to pelvisBiped: Larger in size from neck to pelvis
Center of gravity
Quad: Over the forelimbsBi: Closer to hind limbs
Shape of thorax
Quad: narrow and deepBi: shallow and broad
Tail
Quad: in all but apesBi: none
# of Lumbar Vertebraes
Quad: Galago, 6-7OWM, 7Chimp, 3-4Human, 5
Ilium (Pelvis)
Quad: long and narrowBi: shallow and broad
New World Monkeys have what kind of tail?
Grasping (prehensile)
What is the Intermembral Index?
Humerus Length + Radius Length / Femur Length + Tibia Length x 100
Tibia and Fibula
Quad: use bothBi: fibula used for muscle attachment and balance only
Scapula
Quad: lateralBi: dorsal (humans and chimps)
Spinal Cord Exit
Quad: posteriorBi (HUMANS): anterior*everything except human skulls are posterior*
Spinal Cord Exit
Quad: posteriorBi (HUMANS): anterior*everything except human skulls are posterior*
Intermemberal Index #s
Bipeds, 70 or belowVCLers, 70 or belowBrachiators, 100+Quad, 80-100
Rib Cage
Galago, narrow and long/deepOWM (baboon), narrow and deepChimp, wide and broadHuman, shallow and narrow
Nails v. Claws
ALl primates have nails except the galago/ aye-aye, which has a grooming claw on second digit
Divergent Big Toe
ALl but humans
Strepsirhini (lemurs and lorises) Characteristics
NocturnalWet NosePost-Orbital Bar
Haplarhini (monkeys, apes, and humans) Characteristics
No tailComplete Post-Orbital WallDry noseNo metopic suture (frontal bones are fused)
Platyrrhini (NWM) Characteristics
2-1-3-3 Dental CodeBroad noses, nostrils to sideArboreal
Catarrhini (OWM)Characteristics
No prehensile tailsNose pointed down2-1-2-3 dental code
Shape of Dental Arcade
Galago: VChimp/GOrilla/Orangutan/Apes: UHumans: parabola :(
Canine Destema (gap where canines fit into)
Galago, noOWM, yesNWM, yesChimp, yesGorilla, yesOrangutan, noHuman, no
Y-5 Molar
All apes only
Dental Formula
NWM are only ones with 2-1-3-3, everything else 2-1-2-3
Hominoidea (Apes and Humans)
Broad ChestDorsally placed ScapulaGreater Mobility of Shoulders and Hips
Apes dont have tail
Monkeys do
HIs Madison Dumb
Yes Very
/ 37
Term:
Definition:
Definition:

Leave a Comment ({[ getComments().length ]})

Comments ({[ getComments().length ]})

{[comment.username]}

{[ comment.comment ]}

View All {[ getComments().length ]} Comments
Ask a homework question - tutors are online