Integumenatry systen Flashcards
(25 cards)
mucus
annelis,molluscs(invertbrates),fish(vertebrates)
wax
bees
poison
amphibians,reptiles
scent glands
mammals,reptiles
sweat and mammal glands
mammals
oil glands
birds
functions
-protection of the body (disease,external injury)
-regulation of temperature
-sensory reception
-thermorelgulation
-synthesis(keratin,melatin,vitamin D)
-excretion
phylogenesis in unicellar organisms
-pellicle(nutrition intake,excretion)
phylogenesis in multicellar organisms
skin(origins in ectoderm)
lower levels of organisation
-artropods(článkonožce)
-simple epithelium(sensory,glandular cells)
-can produce cuticle(CaCo3)=>protection
vertebrates
glands produce:
mucus, oil, scent, sweat, mammal )glands
obojživelníky
amphibians
vylučovanie
excremite
plazy
reptiles
žížali
annelis
mäkkýše
molluscs
chromaptophores
-cells that prodcue colour
-UV radiation protection,provide coloration of individual
článkonožce
arthropods
how is amphibilians skin like
-thin skin , very permeable (gas exchange, water loss)
-rich in mucous and poison glands
how is reptiles skin like
-covered in
scales(armour=>airtight-live on land)
-upper layer=cornified
-S,L-overlapping epidermal scales
-crocodiles – dermal scutes
what is birds skin like
-uropygial = preen gland (oil=>waterproof) feather
-different pigments – melanin, carotenoids
what is mammals skin like
-3 layers: edipermis,dermis,hypodermis
-oil,sweat,scent,mammary glands
skin derivates(8)
-variety of glands
-pigmentary structures
-scales
-claws
-nails
-horns
-feathers
-hairs
adapted to their changing enviroment
skin derivates(hair)
-guard hairs (that protect the undercoat hair-birds)
-quills (such as in hedgehogs and porcupines)
-vibrissae (the tactile whiskers on the snouts of mammals)
