Exam 4 BIO 322 Practice Questions and Correct Answers

Which part of a nephron is lined by simple cuboidal epithelial cells with microvilli? Proximal convoluted tubule glomerulus distal convoluted tubule Loop of Henle Proximal convoluted tubule There are 2 ways to increase cardiac output. What are they? Increased heart rate and stroke volume increase cardiac output. Increased heart rate and decreased afterload increase cardiac output. Increased contractility and increased afterload increase cardiac output. Increased stroke volume and increased EDV increase cardiac output. Increased heart rate and stroke volume increase cardiac output. During the Valsalva maneuver there is an increased intrathoracic pressure, partial collapse of the vena cava, and decreased venous return to the heart. There is an enormous increase in blood pressure. Blood pressure increases due to increased intrathoracic pressure. Cardiac output decreases due to increased intrathoracic pressure and partial collapse of the aorta, leading to increased afterload. there is an increased intrathoracic pressure, partial collapse of the vena cava, and decreased venous return to the heart. What does sympathetic stimulation do to the digestive system? It makes it works faster, digesting and absorbing nutrients and stimulating motility to prepare for an emergency. Nothing really. Sympathetic stimulation mainly acts on skeletal muscles and the cardiovascular system to prepare for emergency. It slows digestive secretions and it slows motility. It stimulates digestive secretions and enhances motility. It slows digestive secretions and it slows motility. The small intestine has three segments. What is the name of the middle segment? Jerry Jejunum Ileum Colon duodenum Jejunum What does parasympathetic stimulation do to the digestive system? It makes it works faster, digesting and absorbing nutrients and stimulating motility to prepare for an emergency. Nothing really. Sympathetic stimulation mainly acts on skeletal muscles and the cardiovascular system to prepare for emergency. It slows digestive secretions and it slows motility. It stimulates digestive secretions and enhances motility. It stimulates digestive secretions and enhances motility. What does post-prandial mean? This is the fed state, shortly after eating. This is the fasted state. This is the period of time when you feel like lying on the floor to digest the thanksgiving meal. This is after a meal when sympathetic tone is high to support GI peristalsis. This is the fed state, shortly after eating.