Content Preview

Exam 2 Study Guide: Blood Vessels and Respiratory System 2025 Questions and Answers Arteries - ....ANSWER Veins - ....ANSWER ...-Carry blood away from the heart. ...-Carry blood to the heart. Capillaries - ....ANSWER ...-Gas exchange between the blood and tissue. Continuous capillaries - ....ANSWER ...-Very small junctions that substances can pass through. Fenestrated capillaries - ....ANSWER ...-Most common, have holes in their lining to allow for gas exchange and exchange of larger substances in the blood. Sinusoidal capillaries - ....ANSWER ...-Very large holes found in the lining to allow blood cells to pass through; found in bone marrow and lymph nodes. Tunica intima - ....ANSWER ...-The inner most layer that interacts directly with the blood, consisting of simple squamous epithelium, one cell layer thick. Tunica media - ....ANSWER ...-The muscle layer of the vessels, larger in arteries than veins. …FOR STUDENTS ONLY…©️2025 ALL RIGHTS RESERVED… 1