In the mammalian circulatory system, red blood cells travel through different types of blood vessel as they pass from the heart to respiring tissues and back to the heart. Fig. 2.1 shows the types of blood vessels through which red blood cells travel in the circulatory system. Fig. 2.1 Complete Fig. 2.1 by writing the names of the missing types of blood vessels through which red blood cells travel.

Biology

IGCSE&ALevel

CAIE

Exam No：9700_w24_qp_21 Year：2024 Question No：2(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

Answer:

Knowledge points:

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