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24 Cards in this Set
- Front
- Back
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Vomernasal Organ |
Pheromone Reception Primitive AKA Jacobson's Organ |
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Nose of Platyrrhine |
Cebus Ateles NWM Nostrils Face Sideways/outwards Flat Nose |
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Nose of Catarrhine |
Cercopithecus Macaque Papio Nostrils face downside Hook nosed |
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Rhinarium |
Moist naked surface around nostrils of the nose Appears in most mammals, most prosimians - NOT Tarsiers |
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Philtrum |
Medial Cleft Vestigial medial depression between nose and lip |
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Strepsirrhini Nose |
Curly-nosed primates with rhinaria Older - More Ancestral Condition |
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Haplorhini Nose |
Simple-nosed primates which have replaced the rhinarium with a more mobile, continuous, dry upper lip |
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Olfaction: Bony Construction in Humans |
1 Maxillary 2 Ethmodial Reduced Complexity |
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Olfaction: Bony Construction in Lemurs |
1 Nasal 4 Ethmoidal 1 Maxillary |
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Rods |
Function in less intense light |
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Stereoscopic Vision |
Overlapping vision |
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Scotopic Vision |
Low Light Monochromatic Seen Tarsiers & Aotus |
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Photopic Vision |
Diurnal Color Vision Seen in: MOST NWM OWM Apes Humans |
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Vision Mammal Evolutionary Traits |
Eyelashes Rods predominate Visual Cortex |
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Vision Primate Evolutionary Traits |
Eyes frontally direct Macula & Fovea Elaboration of Visual Cortex |
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Macula Lutea |
Oval-shaped pigmented area near the center of the retina of the human eye Specialized for high-acuity vision |
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Forvea Centralis |
Small, central pit composed of closely packed cones in the eye Response for sharp central vision |
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Tympanic Ring - Os ectotympanium |
Derived from membranous bone |
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Tympanic Bulla |
Houses sensory receptors of the ear. |
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Platysma |
Muscle in neck, cause neck to protrude out |
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Primitive Mammal Auditory Functions |
No ossified floor of the petrou portion of the temporal bone |
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Primitive Primates |
Floor is ossified derived from Cartilage - Tympanic Bulla Most mammals & Lemurs |
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What Primates have a tympanic ring & membrane exposed? |
Lorises & NWM |
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What primates have tympanic ring expanded laterally to form the tympanic canal? |
OWM, Hominins, & Tarsiers |
