Life sensation

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Life sensation support

• Special senses
• Sight
• Smell
• Hearing
• Taste
• Touch

• Ins/outs acid/base balance
• Respiratory system
• Urinary system
• Digestive system

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Special senses

• Sight
• Parts needed for this sensation
• Eyelids ( muscles, glands) protection
• Eyeball (globe) sensation
• Optic nerve communication
• Brain analysis communication
• Muscles support response

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Sight
Reflective layer on retina Tapetum
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Sight Visual fields
Eye placement in head
Person binocular Range100
Short-nosed dog Range 200
Long-nosed dog Cats Range 270-280
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Special senses

• Smell
• Parts needed for this sensation
• Nose (skin, muscles, glands)
• support, protection
• Airways life support
• Nasal pocket sensation, communication
• Vomeronasal organ communication
• Brain processing, communication
• Muscles support, movement, response

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Special senses

• Smell (olfaction)
• Dogs gt cats gtgtgtgt people
• 220M 200 M 5 Million receptors
• Breathe air ? lungs
• Sniff air ? nasal pocket full of scent receptors
  ? olfactory nerve ? brain
• Dogs cats vomeronasal organ ?
  brain/hypothalamus (pheromones)

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Smell Olfactory tracts
Air
Pheromones ? vomeronasal organ ?
Hypothalamus Feeding behavior Social
behavior Sexual behavior
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Special senses

• Hearing
• Parts needed for this sense
• Ear (skin, muscles, canals, glands) support,
  protection
• Tympanum, middle ear bones sensation,
  communication
• Otic nerve communication
• Brain analysis, communication
• Muscles support, response

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Special senses

• Hearing
• Wavelengths detected
• 20,000 cps 40,000 cps 80,000 cps
• People
• Dogs
• Cats
• Middle ear bones hearing
• Inner ear canals balance, orientation

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Special senses

• Taste
• Parts needed for this sense
• Lips Mouth (muscles, teeth, glands) support,
  protection
• Tongue tastebuds sensation
• Nerves communication
• Brain analysis, communication
• Muscles support, response

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Special senses

• Taste
• Cats receptors for acid, bitter, salt
• Diet expected?
• Dogs receptors for sweet, acid, salt
• Diet expected?
• Tongue touch, temperature, texture

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Special senses

• Touch
• Parts needed for this sense
• Skin and surface structures protection
• Nerves sensation, communication
• Brain analysis, communication
• Muscles support, response

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Touch

• Sensations
• Pain
• Pressure
• Temperature warm, cold
• Vibration
• Neonates seek out warmth pressure
• Adults seek out all touch sensations

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Life Support

• Respiratory system
• Urinary system
• Digestive system

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Life Support

• Respiratory system
• Functions
• Gas exchange (O2 in, CO2 out)
• Acid/base balance (pH control)
• Hormone production (BP control)
• Immune protection
• Parts
• Tubes and sacs
• pH and O2 sensors
• Specialized cells
• Cast of support structures

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Life Support

• Respiratory system
• Gas exchange

Trachea
Bronchi
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Life Support

• Respiratory system
• pH control
• Players blood tissue chemicals, lungs,
  kidneys, digestive tract, sensors
• LUNGS CO2 ? HCO3 - ?H2CO3
• Base Acid

Optimal pH 7.2 (slightly basic)
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Life support

• Respiratory system birds
• counter-current system

HIGH O2
low O2
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Life Support

• Urinary system
• Functions
• Liquid waste management
• Mineral, vitamin, protein, drug balance
• Fluid balance
• Acid/base balance (pH control)
• Hormone production (RBCs, BP control)
• Vitamin D production

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Life Support

• Urinary system
• Players
• Kidneys
• Ureters
• Bladder
• Urethra
• Support structures (circulation, connective
  tissue, muscles)

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Life Support

• Urinary system
• Focus on the Kidney
• Cortex Nephron
• Medulla loops of Henle, ion exchange
• Pelvis liquid waste collection? Ureter
• Circulation import/export functions

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