PSYC 2000 Chapter : Sensation And Perception Modules 17 -18
Document Summary
Questions: name the 4 basic mammalian posture types. For each posture type, name the limb elements (hind limb) that touch the ground. Also, name one mammal that is representative of each posture type (provide either common or scientific name). Plantigrade(humans\primates) = tarsals, metatarsals, and phalanges touch ground. Stride rate: list three major advantages of large body size in mammals (i gave you four in class). Easier to retain heat due to decrease in surface area to volume ratio. To get rid of the clavicle and move the scapula down. Helped with evolution of the body from round\oval shaped body to an elongated type body (increase speed) Shown in horses\hoofed mammals: explain how "spinal flexion" works in running mammals. Spine uses a spring to help shoot the mammal forward (flexion extension) and increase the stride length by making them glide in the air longer.
