Study the below diagram of a capillary network and answer the questions that follow.

Here are the answers to your questions about the capillary network: 3.1 Vessel 1 is an arteriole*. Vessel 2 is a venule*. Answer: 1: Arteriole, 2: Venule 3.2 Here are three structural differences between blood vessels 1 (arteriole) and 2 (venule): Arterioles (1) have thicker, more muscular walls to withstand high blood pressure, while venules (2) have thinner, less muscular walls*. Arterioles (1) have a smaller lumen* (internal diameter) compared to venules (2) of similar size. Arterioles (1) carry blood away from the heart towards the capillaries, while venules (2) carry blood away from the capillaries* towards the heart. 3.3 The lining of a capillary is called the endothelium. Answer: Endothelium 3.4 Gas A is moving from the capillary to the body cells, indicating it is oxygen* (O_2). Gas B is moving from the body cells to the capillary, indicating it is carbon dioxide* (CO_2). Answer: A: Oxygen (O_2), B: Carbon dioxide (CO_2) 3.5 The liquid which bathes the body cells is called tissue fluid (or interstitial fluid). Answer: Tissue fluid 3.6 Blood leaving a systemic capillary network is deoxygenated and returns to the heart via venules and veins, eventually entering the right atrium. Answer: Right atrium Send me the next one 📸