Blood vessel Features Function Thick muscular walls Carry blood away from heart under high pressure. Narrow central channel Pulse muscular walls Carry blood the heart under low pressure. Thin towards Wide central channel Contain valves Thin walled (one cell thick) They form networks at organs and tissues to allow Large surface area efficient exchange of materials.
Blood vessel Features Function Thick muscular walls Narrow central channel Pulse Carry blood away from heart under high pressure. Thin muscular walls Wide central channel Contain valves Carry blood towards the heart under low pressure. Thin walled (one cell thick) Large surface area They form networks at organs and tissues to allow efficient exchange of materials.
Biology-N5-Summary-Sub-topic-2.6.docx