The liver receives blood from the hepatic artery and from the hepatic portal vein. The hepatic portal vein transports blood from the digestive system. Hepatocytes are the main cell type of the liver. They have a wide range of functions, including: - the synthesis of triglycerides and plasma proteins - detoxifying waste - energy storage. The hepatic artery branches from the main artery that transports blood from the heart. Name the main artery that transports blood to the hepatic artery.

Biology

IGCSE&ALevel

CAIE

Exam No：9700_w23_qp_22 Year：2023 Question No：3(a)

Answer:

Knowledge points:

8.1.1 state that the mammalian circulatory system is a closed double circulation consisting of a heart, blood and blood vessels including arteries, arterioles, capillaries, venules and veins

8.1.2 describe the functions of the main blood vessels of the pulmonary and systemic circulations, limited to pulmonary artery, pulmonary vein, aorta and vena cava

8.1.3 recognise arteries, veins and capillaries from microscope slides, photomicrographs and electron micrographs and make plan diagrams showing the structure of arteries and veins in transverse section (TS) and longitudinal section (LS)

8.1.4 explain how the structure of muscular arteries, elastic arteries, veins and capillaries are each related to their functions

8.1.5 recognise and draw red blood cells, monocytes, neutrophils and lymphocytes from microscope slides, photomicrographs and electron micrographs

8.1.6 state that water is the main component of blood and tissue fluid and relate the properties of water to its role in transport in mammals, limited to solvent action and high specific heat capacity

8.1.7 state the functions of tissue fluid and describe the formation of tissue fluid in a capillary network

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