Respiratory System -Animal Flashcards
use the gastro vascular cavity as a surface for diffusion and active transport
does not require circulatory system
body wall is made up of two cell layer direct contact withe environment
inner layer have direct access nutrients
ts of hydra
key parts of cisculatory system
fluid
network of tubes or body paces
pump
open circulatory system
blood does not always enclosed in vessels
blood flows directly into body cavity and tissues
ts in insects
most cells are not in direct contact with environment
closed circulatory system
has a dorcal and a ventrical blood vessels
ts of earthworm
blood is read as it contains___________
hemoglobin
general function of ts of mammals
- transportation
a. respiratory
b. nutritive
c. excretory - regulation
- protection
transport hormones and participates in heat regulation
regulation
protects the body from injury during blood clotting aand plays a role in the immune system defense against toxins and pathogens
protection
tough membrane that covers and protects the heart
pericardium
two upper chambers of the heart
pumps blood into lower ventricles
thin walls
atria
two lower chambers of the heart
pumps blood out to lungs and the rest of the body
ventricles
can open and close controlling direction of blood flow in heart
tricuspid and mitral blood
atrioventricular valves
allow blood to flow from ventricles into arteries that flow away from the heart
pulmonary and aortic valve
semilunar valves
three levels of ts of plants
cellular level lateral transport (short-distance) whole plant (long distance)
where materials are transported
fluid
