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Student: ID: Circle Gender & Grade: Male or Female Teacher: Class Period: Subject: 6 7 8 9 10 11 12 Date: Vessels by Design: Basic Vessel Anatomy Pilot Pre/Post Test Select the best response for each test item. Follow your teacher’s directions to either circle the letter that corresponds to the answer you choose or color in the response on the answer sheet provided. ____________________ Refer to Figure 1 for questions 1-4. Figure 1: Cross Section of a Blood Vessel 1. The inner most layer of the blood vessel (label 1 on the figure to the right) is called the A. intima. B. media. C. tunica adventitia. 2. The endothelial cells that make up the inner most layer (label 1) act like a “gate” because they can 3 4 1 5 2 A. stretch to reshape the vessel lining and stick to surrounding muscle. B. open spaces to allow things in or touch closely together creating a tight seal. C. swing in and out to the center of the vessel to push the blood through. 6 7 3. The tunica adventitia (label 3 on Figure 1) is a strong blood vessel layer that helps A. connect the blood vessel to surrounding tissue. B. stretch and contract as blood flows through the vessel. C. carry oxygen-poor blood away from the lungs. 4. The flexible and “elastic” blood vessel parts labeled 4, 5, and 6 combine to make the media which A. anchors the blood vessel to surrounding body tissues and helps it maintain its shape. B. controls the substances that are allowed to move into or out of the blood vessel. C. allows the blood vessel to maintain its normal size or stretch as blood moves through it. 5. Arteries are blood vessels that typically carry blood away from the A. heart to the body and lungs. B. body and lungs to the heart. C. right lung to the left lung and heart. Vessels by Design: Basic Vessel Anatomy, Activity 3A from Inflamm-O-Wars Unit Pre/Post Test, Pilot -- UTHSCSA, Teacher Enrichment Initiatives, 2007 1 6. Pulmonary arteries carry A. oxygen-poor blood. B. oxygen-rich blood. C. oxygen-neutral blood. Refer to Figure 2 for question 7. Figure 2: Cross Section of Arteries and Veins 7. In the cross-section to the right, why is there a difference in the size of the media of the artery and the media of the vein? A. The media of the artery must pull the adventitia away from surrounding tissue. B. The media of the vein must be thinner to allow blood to move to the surrounding tissue. C. The media of the artery must be thicker to withstand higher blood pressure forcing through it. Refer to Figure 3 to “fill in the blanks” for items 8-11. Figure 3: Blood Vessels 8-11. From the lungs, oxygen-rich blood moves through tiny capillaries, arterioles, and arteries leading to the __8__ where it is pumped to the rest of the body through large elastic arteries that branch into smaller arteries, arterioles, and finally into __9__ surrounding the body cells. Here, oxygen and nutrients are diffused out into the body cells, while carbon dioxide and other byproducts are diffused into the blood and carried back to the heart, then the lungs through large __10__ which divide into smaller and smaller vessels until the vessel is thin enough to allow carbon dioxide to diffuse out into the __11__. Refer to Figure 3 to answer question 12. A B C E D 12. The arrows on this diagram show that A. arteries carry blood away from the heart. B. veins carry blood away from the heart. C. capillaries carry blood away from the heart. Vessels by Design: Basic Vessel Anatomy, Activity 3A from Inflamm-O-Wars Unit Pre/Post Test, Pilot -- UTHSCSA, Teacher Enrichment Initiatives, 2007 B 2 13. What structures of the capillaries make it possible for diffusion of gases between the blood and the body cells? A. thick tunica adventitia layers B. thin muscle and endothelium layers C. muscular media layers 14. What features of veins make them capable of doing the job for which they are designed? A. Non-elastic layers, thick adventitia, and check valves B. Small lumen, thick and muscular media, and thin adventitia C. Internal and external elastic layers with endothelial cells 15. Inhaled oxygen molecules diffuse through the walls of the _____ in the lungs. A. artery B. alveoli C. arterioles 16. Energy is released when _____ is broken down by oxygen. A. glucose B. energy C. blood 17. _____ travel single file through the capillaries so that materials can be diffused into or out of the circulatory system. A. glucose molecules B. white blood cells C. red blood cells Vessels by Design: Basic Vessel Anatomy, Activity 3A from Inflamm-O-Wars Unit Pre/Post Test, Pilot -- UTHSCSA, Teacher Enrichment Initiatives, 2007 3