explain the process of circulation pisces and amphibians
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Fish (Single Circulation- blood passes through the once in each circuit)
The heart has two chambers; atrium and ventricle.
Blood entering the heart goes to the atrium then the ventricle
The ventricle then pumps blood to the gills
As the blood leaves the gills, the capillaries carry oxygen-rich blood to the capillary beds throughout the body, then it returns to the heart.
When blood flows through a capillary bed, blood pressure decreases, which limits blood flow in the body. When the animals swims, the contraction and relaxation of its muscles help increases blood pressure.
Amphibians, Reptiles, and Mammals (Double Circulation)
There are two pumps that are connected to the heart for the two circuits.
One pump delivers oxygen-poor blood to the capillary beds in the gas exchange tissues, where O2 is added and CO2 is excreted out of the blood, this is called pulmonary circuit if it uses capillaries from the lungs in in reptiles and mammals and pulmocutaneous circuit in amphibians, because is uses capillaries both in the lungs and skin.
Amphibians
Notice that they use their lungs AND skin capillaries
Mammals
After the oxygen- enriched blood leaves the gas exchange tissues it enters the other pump on the left side of the heart.
Contractions of the heart pushes the blood to the capillary beds in organs and tissues in the body.
When the exchange of O2 and CO2 and waste products, the now oxygen-poor blood returns to the heart completing a systemic circuit
Amphibians
Most have three chambers; two atria and one ventricle.
The ridge in the ventricle takes most of the oxygen-poor blood from the right atrium to the pulmocutaneous circuit and most of the oxygen- rich blood from the left atrium to the systemic circuit
When the amphibian submerges in water, they shut off their blood flow to their lungs and continues blood flow to the skin for gas exchange.
Mammals
Have two atria and two completely divided ventricles. The left side of the heart pumps and receives only oxygen-rich blood while the right side of the heart pumps and receives only oxygen-poor blood.
Mammals are typically bigger and take up more energy so their circulatory systems need to deliver more oxygen to their tissues. Mammals can do this by their separate and independent systemic and pulmonary circuits. Some mammals have a four chambered heart, like cows, for their needs.
The heart has two chambers; atrium and ventricle.
Blood entering the heart goes to the atrium then the ventricle
The ventricle then pumps blood to the gills
As the blood leaves the gills, the capillaries carry oxygen-rich blood to the capillary beds throughout the body, then it returns to the heart.
When blood flows through a capillary bed, blood pressure decreases, which limits blood flow in the body. When the animals swims, the contraction and relaxation of its muscles help increases blood pressure.
Amphibians, Reptiles, and Mammals (Double Circulation)
There are two pumps that are connected to the heart for the two circuits.
One pump delivers oxygen-poor blood to the capillary beds in the gas exchange tissues, where O2 is added and CO2 is excreted out of the blood, this is called pulmonary circuit if it uses capillaries from the lungs in in reptiles and mammals and pulmocutaneous circuit in amphibians, because is uses capillaries both in the lungs and skin.
Amphibians
Notice that they use their lungs AND skin capillaries
Mammals
After the oxygen- enriched blood leaves the gas exchange tissues it enters the other pump on the left side of the heart.
Contractions of the heart pushes the blood to the capillary beds in organs and tissues in the body.
When the exchange of O2 and CO2 and waste products, the now oxygen-poor blood returns to the heart completing a systemic circuit
Amphibians
Most have three chambers; two atria and one ventricle.
The ridge in the ventricle takes most of the oxygen-poor blood from the right atrium to the pulmocutaneous circuit and most of the oxygen- rich blood from the left atrium to the systemic circuit
When the amphibian submerges in water, they shut off their blood flow to their lungs and continues blood flow to the skin for gas exchange.
Mammals
Have two atria and two completely divided ventricles. The left side of the heart pumps and receives only oxygen-rich blood while the right side of the heart pumps and receives only oxygen-poor blood.
Mammals are typically bigger and take up more energy so their circulatory systems need to deliver more oxygen to their tissues. Mammals can do this by their separate and independent systemic and pulmonary circuits. Some mammals have a four chambered heart, like cows, for their needs.
shaheenkhan0929:
thnx :)
hope so it helps you!
what?
nope so!
its all okay, but i don't know anything about it.
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