cardio vasc. system and respiratory system Flashcards
(52 cards)
what is the heart? ventral or dorsal ?
the heart is ventral
what is the heart divided into?
contractile chambers
what receives blood from the body and where does that blood get sent to after?
the atria receives blood and then sends it to the ventricles
what sends the blood out to the body?
the ventricles
where did the arteries of the heart develop from?
they developed from the wall of the pharynx of embryos, and then are divided into embryonic aortic arches, embryonic arches
what is the name of the series of paired vessels in the pharynx wall?
embryonic arches
what is the result of the reduced number of paired vessels in tetrapods?
arteries
is the mammal / bird cardio vasc system symmetrical or asymmetrical ?
asymmetrical
how many chambered heart does fishes have? where does the deoxy blood get moved to?
they have a two chambered heart, and deoxy blood gets moved to the lungs
how many chambered heart does mammals, crocs, and birds have?
four chambered heart
what’re the two circuits of the cardio vasc system?
pulmonary and systemic
which cardio vasc system circuit takes deoxy blood to the lungs for oxygen?
pulmonary
which cardio vasc system circuit takes the oxygenated blood to the rest of the body?
systemic
in the amphibian cardio vasc system, the deoxy and oxygenated blood are mixed, what is this assos with?
low metabolism
in birds and mammals the deoxy blood and oxygenated blood are kept separated, what is this assos with ?
high metabolism
how many chambered heart does amphibs and most reptiles (besides crocs) have?
three chambered heart
what are the two functions of the respiratory system ?
gas exchange and sound production
what’re the two components of the respiratory system ?
gas exchange conducting organs and respiratory surface
which component has to do with exchanging gases?
respiratory surface
fishes have a pharynx and gill openings, what is this an example of?
gas conducting organs
what’re the two components of gas conducting organs in tetrapods?
branchial tree and the “voice box”
what does the branchial tree include ? 2
the trachea and branches
what is the name for the mammal voice box?
larynx
what is the name for the bird voice box and why can birds make complex noises?
birds have a syrinx, and its at the base of the trachea and because it is branched, it generated complex sounds