Shark Circulatory System and Arteries

Sarah introduces the shark circulatory system, explaining the flow of blood through the two-chambered heart, the role of afferent and efferent bronchial arteries, and the systemic circulation. She details the major arteries, such as the celiac, anterior mesenteric, and gastro splenic arteries, and their functions in supplying oxygenated blood to various organs. The video concludes with a call to test arterial knowledge through another video.

What is the primary focus of the video presented by Sarah?

• The shark's respiratory system

• The shark's nervous system

• The shark's circulatory system

• The shark's digestive system

How many chambers does a shark's heart have?

• Four

• Three

• Two

• One

What is the function of afferent bronchial arteries in sharks?

• Carry deoxygenated blood to the gills

• Carry deoxygenated blood to the liver

• Carry oxygenated blood to the heart

• Carry oxygenated blood to the brain

Which artery supplies oxygenated blood to the shark's brain?

• Komissarov artery

• External carotid artery

• Internal carotid artery

• Subclavian artery

What is the role of the coronary artery in sharks?

• Supplies the liver with blood

• Supplies the heart with oxygenated blood

• Supplies the stomach with blood

• Supplies the gills with deoxygenated blood

Which artery is responsible for supplying the pectoral fin in sharks?

• Iliac artery

• Gastro splenic artery

• Celiac artery

• Subclavian artery

What does the celiac artery branch into?

• Efferent and afferent bronchial arteries

• Coronary and internal carotid arteries

• Subclavian and iliac arteries

• Gastric, hepatic, and pancreatic o mesenteric arteries

Which artery supplies the spiral valve intestine with oxygenated blood?

• Gastro splenic artery

• Anterior mesenteric artery

• Posterior mesenteric artery

• Iliac artery

What is the exception to the rule regarding mesenteric arteries?

• They always supply the liver

• They always supply the heart

• They always supply the rectal gland

• They always supply the intestine

Which artery is not considered a major branch but supplies the pelvic fin?

• Iliac artery

• Subclavian artery

• Celiac artery

• Gastro splenic artery