Term
Describe the following characteristics of reptiles
1. Body temp
2. Scales
3. Amniotic egg
4. Fertilization
5. Respiration/Circulation |
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Definition
1. ectothermic
2. protection, waterproof
-epidermal keratin
-shed in snakes, lizards; grows in crocs and turtles
3. leathery shell; moisture, shock absorber
4. internal fertilization
5. more effecient
-2 atrium, 1 ventricle (except crocs 2/2) |
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Term
Describe Hair in Mammals
1. Structure
2. Types |
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Definition
1. grows from follicle; cells die distally, cornify with keratin
2. Pelage- guard hairs, underhair
Vibrasse- tactile |
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Term
Describe the following glands in mammals:
1. Sweat
2. Sebaceous
3. Scent
4. Mammary |
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Definition
1. evaporative cooling
2. skin and hair conditioning
3. pheromone production; territorial marking
4. milk production |
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Term
Describe the ruminant stomach
1. Rumen
2. Reticulum
3. Omasum
4. Abomasum |
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Definition
1. moistening, mixing, bacteria
2. packed into cud and then re chewed
3. water absorbed
4. enzymatic digestion |
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Term
Describe the structure of compact bone
1. Osteons
2. Lacunae
3. Canaliculi |
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Definition
1. cylindrical unit; Haversian canal (blood vessels) surrounded by layers of bone
2. cavities between layers and osteocytes
3. canals connecting lacunae to distribute nutrients between osteocytes |
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