1/25 – 1/27- Body systemso Integumentary Skino Skeletalo Muscular Movemento Circulatory Bloodo Respiratory Oxygeno Nervouso Urinary Waste disposalo Endocrine Hormoneso Sense organs Senses- Animal anatomyo Cranial – heado Ventral – stomacho Withers – shoulderso Dorsal – backo Axilla – armpito Muzzle – moutho Pinna – external ears- Integumentary systemo 3 layers – epidermis (dead skin), dermis, hypodermiso Dewlap – female rabbits Cushion for baby rabbits- Skin glandso Sudoriferous – watery Used for scent mark and communication Cool down the animalKnow skeleton parts – 16 bones- Muscular systemo Skeletal muscle – voluntaryo Cardiac, smooth – involuntaryo Unique aspects Cats – white – they run farther Dogs – red – run shorter distances- Circulatory systemo Arteries – take blood away from the heart, high in oxygeno Veins – carry blood back o Capillaries – between, nutrientso Portal system Carries blood to the livero Pulmonary system Carried blood to the lung tissue- Respiratory systemo Bronchus then bronchiole then gas exchange in the alveoli- Sled dogso Can be compared to cheetahs, humans, horseso Cross-bred dogs No standard look or color for sled dogso You want them to be small, <60 lbso Muscles are very red – lots of blood vesselso Lots of hemoglobin – attached to carbon dioxide and oxygeno Untrained sled dog – 175 ml of oxgen in/out of lung per kg/mino Trained sled dog 300 ml/kg/mino Human – 60-80 ml/kg/min- Endocrine systemo Hypothalamus Part of the braino Pancreas Glucose metabolism- Insulin – lowers blood glucose- Glucagon – increase blood glucose Digestion- Enzymes for digestion Location- Near the beginning of the small intestineo Adrenal glands Fight or flight response (adrenaline) Blood pressure- Senseso Visions Most important for humans Changes light energy into nerve impulses Cat/dog vision – dichromatic - Less cones, more rods (night vision) Predator vs.