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Blood Circulation& Transportation (Importance of circulation (CS…
Blood Circulation& Transportation
Importance of circulation
CS transport O2 and nutrients (glucose,amino acid) to cells
Pick up waste and excrete from the body via lungs/kidneys
Gas exchange and nutrient-for-waste exchange occur across walls of smallest blood vessels (capillary)
Help bidy to transport heat and transmit force
Circulation definition : The major purpose of moving a fluid in the body is to provide rapid mass transport over distance where diffusions is inadequate/ too slow
Compare different circulation systems in different invertebrates
NOT
have a circulatory system
BUT
gastrovascular cavity
CNIDARIA
each cell is exposed to water and can independently exchange gases, nutrients uptake, and get rid of wastes.
FLATWORM
Trilobed gastrovascular cavity branches throughout the small, flattened body No cell is very far from one of the three digestive branches, so nutrient molecules can diffuse from cell to cell effectively
Have
OPEN
and
CLOSED
circulatory system
Involved 2 type of fluid
Haemolymph
Clam :
Heart pumps hemolymph via vessels into tissue spaces and eventually hemolymph drains back to the heart.
Grasshopper: has colorless blood and doesn’t depend on its open circulatory system to deliver oxygen to its muscles.
Tracheae open to outside and take oxygen directly to flight muscles.
Blood
Annelid
Compare different circulatory systems in different vetebrate
Only have
CLOSED
Circulatory system
Single loop
Fish
Double loop
2 Atria & 1 Ventricle
FROG
2 atria & 2 ventricle
BIRD
Lymphatic system and its importance
functions
Fluid Balance (recycle 10% of blood plasma)
Fat absorption and transportation from the digestive system
Immunological defense
Primary lymphoid organs
Thymus and bone marrow
production and selection of lymphocytes
Secondary (or peripheral) lymphoid
organs
Sites of lymphocyte activation by antigens
lymph nodes
Lymphoid follicles in tonsils, adenoids,
Peyer’s patches, spleen, skin, etc.
disorder
lymphedema
elephantiasis
Mammalian CS
Pulmonary circuit
right and left pulmonary arteries- carry blood to the lungs
O2-poor blood from all body regions
Systemic circuit
carry rich O2 blood
Heart
4 chambers
left, ventricle, left atrium, right ventricle, right atrium
septum-divide left and right part
Atrioventricular valves (i.e. tricuspid & mitral valves)- between the atria and ventricles.
Atrioventricular valves (i.e. tricuspid & mitral valves)- between the atria and ventricles.
beats 70 times a minute
Systole refers to contraction
diastole refers to relaxation
Two atria and two ventricles
Blood
function
transport of hormones & cells of non-respiratory function
transfer of heat
transmission of force
blood disorder
Hemophilia
Hematopoietic cell dev. to:
RBC, WBC
Neutrophil-engulf
foreign material.
Lymphocytes-fight infection
Eosinophi, basophil, monocyte
system
ABO system
Rh system-During pregnancy, if the mother is Rh-negative and the father is Rh-positive, the child may be Rh-positive
Blood
function
transport of hormones & cells of non-respiratory function
transfer of heat
transmission of force
blood disorder
Hemophilia
Hematopoietic cell dev. to:
RBC, WBC
Neutrophil-engulf
foreign material.
Lymphocytes-fight infection
Eosinophi, basophil, monocyte
system
ABO system
Rh system-During pregnancy, if the mother is Rh-negative and the father is Rh-positive, the child may be Rh-positive