BIO 117 Lecture 11 questions with complete solutions 2024/2025

BIO 117 Lecture 11Arteries and arterioles are blood vessels that carry - correct answer blood away from the heart Aorta, Arteries, Arterioles ( largest to smallest) contain - correct answer smooth muscles in their walls; which can dilate or constrict to alter blood pressure Capillaries - correct answer most numerous and the smallest blood vessels in your body. So thin and small that only one blood cell can fit through at a time. Capillaries function is to - correct answer exchange nutrients (give the body what it needs) and absorb waste connect arteriole and venule Veins and venules are blood vessels that carry blood - correct answer towards the heart Venules, Veins, Superior and Inferior Vena Cava (smallest to largest) contain - correct answer tunica intima in their walls and less pressure What two blood vessels can alter blood pressure due to the muscle in their walls? - correct answer arteries and arterioles Vasoconstriction - correct answer narrowing of blood vessels, increases resistance to blood flow, increases BP Vasodilation - correct answer widening of blood vessels, decrease resistance to blood flow, decreases BP What kind of substances would leave the capillaries and go toward all our cells? - correct answer oxygen, water, nutrients