40 Flashcards
(27 cards)
advantage of complex body system
maintain relative stable internal environment
matrix
fiber in a liquid, jelly like, solid foundation
fibtoblasts
secret collagen(strength and flexibility) , elastic fibre ( stretch and snap back ), reticular fiber (join connective tissue to adjacent tissue)
loose connective
epithelia to underlying tissue hold organ in place
elastic fiber,reticular
cartilage
strong and flexible support
collagen
fibrous connective
tendon
ligament
elastic and collagen
adipose
store fat
regulators
use internal change to face external changes
conformer
external changes results in internal changes
hemostasis
maintain steady state or internal balance regardless of external environment
circadian rhythm
physiological changes that occur roughly every 24hr
endothermic
generate heat by metabolism
birds
mammals
ectothermic
gain heat from external sources
invertebrates,fishes,amphibians,nonavian
poikilotherm
varies with environment
homeotherm
temp relatively constant
heat exchange mechanisms
radiation
evaporation
convection
conduction
thermoregulation adaption
insulation circulatory adaptation evaporation behavioural adjusting metabolic heat production
insulation
hair , fur , feathers , blubber
reduce heat loss
birds and mammals
circulatory adaptation
many endotherm and some ectotherm
vasodilation:more heat loss
vasoconstriction:heat preservation
countercurrent exchange; marine mammals and birds
evaporation
panting in birds and animals
sweating or bathing moisten
behavioral responce
endotherm and ectotherm
terrestrial invertebrates–> body posture
adjusting metabolic heat production
thermogenesis: adjustment of metabolic heat production to maintain body temp
shivering
bioenergetic
overall flow and transformation of energy in an animal
determine how much food it needs
size , activity, environment
biosynthesis
body growth
storage of material as fat
gamete production
