Tutorial Crocodile Technology - Tutorial Crocodile Technology
Squid and Crocodile Circulatory System
-
Upload
azneezal-ar-rashid -
Category
Documents
-
view
104 -
download
1
Transcript of Squid and Crocodile Circulatory System
Squid & CrocodileCirculatory System
Azneezal Ar-Rashid
Smk Sri Aman
• The squid has a relatively complex circulatory system for invertebrates, with a closed circulatory system.
• The squid has two branchial hearts at the base of the gills which send unoxygenated blood through the gills.
• The third ventricular heart then pumps this oxygenated blood throughout the body.
crocodile: circulatory system
• In crocodiles the ventricular septum is complete, but the two aortas come out of different ventricular chambers.
• A semilunar valve at the entrance to the left aorta prevents nonaerated blood in the right ventricle from flowing into the aorta.
• Instead, part of the aerated blood from the left ventricular chamber pumped into the right aorta flows into the left by way of an opening.