Differences in circulatory systems by Rosa Andrews https://padlet.com/randrews36/kvxdp9194oxrn9qu en-us 2025-03-05 11:44:40 UTC 2025-03-05 12:01:18 UTC hello@padlet.com https://padlet.net/icons/8.0/png/1fa78.png Fish circulatory system https://padlet.com/randrews36/kvxdp9194oxrn9qu/wish/3352391446 Fish have a specialised circulatory system with a single loop and gill based oxygenation adapted to their underwater lifestyle. They have a 2 chambered heart and a single circulatory system. Blood flows in a single loop from the heart to the gills and then directly to the rest of the rest of the body without returning to the heart. Blood gets pumped through the gills to get oxygenated.

]]> 2025-03-05 11:59:10 UTC https://padlet.com/randrews36/kvxdp9194oxrn9qu/wish/3352391446 Reptiles https://padlet.com/randrews36/kvxdp9194oxrn9qu/wish/3352391449 REPTILES

Reptiles have adapted to have a double circulatory system.

The heart consists of 2 atria and 1 partially divided ventricle, which allows for the seperation of oxygenated and some deoxygenated blood, there is still some mixing compared to fully divided hearts seen in mammals. A total of 3 chambers compared to mammals which have 4 chambers.

BLOOD FLOW REGULATION

Reptiles exhibit varied blood flow patterns depending on activity levels and environmental conditions, whereas mammals and birds have more constant blood flow rates due to higher metabolic demands.

OXYGENATION STRATEGIES

Reptiles rely on lungs for respiration, although some species also utilize skin for gas exchange and to oxygenate the blood.




]]> 2025-03-05 11:59:10 UTC https://padlet.com/randrews36/kvxdp9194oxrn9qu/wish/3352391449 Amphibians https://padlet.com/randrews36/kvxdp9194oxrn9qu/wish/3352393615 Amphibians have a double circulatory system, with a three chambered heart. The heart has two atria and one ventricle. It is an incomplete circulatory system.


They can diffuse oxygen through their moist skin (and sometimes their mouths). It then travels through the pulmocutaneous circuit.


blood flow-blood flows through two circuits the systematic and the pulmocutaneous

systematic circuit-the blood is circulated between the heart and the rest of the body

pulmocutaneous-the blood is circulated between the heart, the lungs and the skin

mixing-there is some mixing of oxygenated and deoxygenated blood in the ventricle

blood routing-a ridge in the ventricle diverts oxygen rich blood to the systematic circuit and deoxygenated blood to the pulmocutaneous circuit


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