BIOS255 / BIOS 255 Exam 2 | Anatomy & Physiology III with Lab | Latest 2026–2027 Update | Questions & Verified Answers | Grade A – Chamberlain

tps:// BIOS255 / BIOS 255 Exam 2 | Anatomy & Physiology III with Lab | Latest 2026–2027 Update | Questions & Verified Answers | Grade A – Chamberlain Q: Which blood vessel class is the largest and is characterized by having a thick tunica media dominated by elastic laminae? Answer Elastic arteries Q: Which of the following is NOT considered an organ of the lymphatic system? Answer Pancreas Q: The lymphatic capillary bed drains fluid directly from where? Answer Interstitial fluid Q: Which blood vessel carries deoxygenated but nutrient, rich blood from the intestines to the liver? Answer Hepatic portal vein Q: The majority of venous blood from veins originating above the diaphragm will drain into which blood vessel before draining into the heart? Answer Superior vena cava Q: Lymph from above the diaphragm on the left side, and bilaterally below the diaphragm is returned to the venous circulation by way of the: Answer Thoracic duct Q: A drop of blood is in the axillary vein. What is the next vessel that blood will enter? Answer Subclavian vein Q: The circle of Willis, or cerebral anastomosis, ensure blood flow is consistent to the: Answer Brain Q: The hepatic portal system transports blood from: Answer The intestines to the liver Q: T cells mature where? Answer thymus Q: Which of the following factors is NOT important in assuring adequate venous return to the heart? Answer All of these factors contribute to venous return Q: During capillary filtration plasma proteins that remain in the blood due what? Answer Maintain the colloid osmotic (oncotic) pressure of the blood Q: Blood from the brain is drained by the: Answer Internal jugular vein Q: Where do you find red and white pulp in the lymphatic system? Answer Spleen Q: Which of the following classes of blood vessels contain the largest proportion of the body's blood? Answer Veins Q: Running would do what physiologically: Answer Venous return to the heart increases Q: When capillary filtration exceeds capillary reabsorption beyond normal values, such as right-side heart failure, the resulting accumulation of interstitial fluid is known as: Answer Edema Q: The_________ supplies, the majority of deoxygenated blood to the small intestine and proximal 2/3 of the large intestine. Answer Superior mesenteric artery Q: The__________ artery is a common vessel used to check for pulse. Answer Radial artery Q: Identify the indicated blood vessel Answer Brachiocephalic artery Q: Identify the indicated blood vessel Answer Right common carotid artery Q: Identify the indicated layer of the blood vessel Answer Tunica media Q: Identify the indicated lymphatic tissue: Answer Cysterna chyli Q: Identify the organ indicated by the arrow in a child left and an adult, right. Answer Thymus Q: Which of the following organs likely contain MALT? select all that apply Answer Trachea, small intestine, lungs Q: Which of the following blood vessels carry oxygenated blood? select all that apply Answer Subclavian artery, left anterior coronary artery Q: What are blood vessels Answer channels that carry blood throughout the body Begin and end at your heart Q: What blood vessels are thick? Answer Artery Q: What blood vessels are thin? Answer Veins and Capillary Q: What are the Function of Arteries? Answer Carries oxygenated blood away from the heart *Pulmonary artery is the exception* THICK Q: What are the Function of Vein? Carries deoxygenated blood from body parts to cells *Pulmonary vein is the exception THIN Q: What are the Functions of Capillaries? Answer Oxygen and nutrient are exchanged for carbon dioxide and waste Removes waste products away from tissues THIN Q: What are the layers of blood vessels? Answer Tunica Intima (inner layer) Media (middle) Adventitia (outer, nerves) Q: Name all of the organs in the lymphatic system and location: Answer Bone Marrow- within the bone Spleen - ULQ of abdominal/behind lt rib Thymus Gland -behind sternum Lymph nodes - neck, armpit, chest, abdomen, groin Lymphatic Vessels -before nodes Tonsils -throat Q: What is the fluid that drains in the lymphatic system? Answer Lymph Fluid Q: Where does lymph fluid drain from in the lymphatic system? Answer Blood Vessels Q: What blood vessels carry deoxygenated blood? Answer Veins (with the exception of the pulmonary vein) Q: What blood vessels carry oxygenated blood? Answer arteries (with the exception of the pulmonary artery) Q: What vessels are associated with the heart? Answer Aorta Superior Vena Cava Inferior Vena Cava Q: What vessels are associated with the Lungs Answer Pulmonary Arteries Pulmonary Veins Q: What vessels are associated with the liver? Answer Hepatic Artery Hepatic Portal Vein Q: What are the main veins that give blood back to the heart? Answer Superior Vena Cava Inferior Vena Cava What is the Main Artery OFF of the heart? Answer Aorta How does blood flow through the heart? Answer Inferior and superior vena cava (1) dump blood into the right atrium (2) Right ventricle (3) 2 pulmonary arteries (4) that lead to the lungs (5) where blood becomes oxygenated Pulmonary veins (6) bring blood from the lungs back to the left atrium (7) Left ventricle (8) is large and muscular to pump blood into the aorta (9) and to the rest of the body (10) Eventually blood will be pumped back to each vena cava (1) What is the Circle of Willis? Answer A circle of arteries that supply blood to the brain What is the hepatic organ? The liver Where is T-Cells derived from? Originate from bone marrow progenitors and migrate to the thymus What ensures adequate venous return to the heart? A thin layer of smooth muscle in the veins that helps squeeze blood back towards the heart What is the function of plasma protein? - transport of substances such as hormones and lipids in the blood - creating effective osmotic pressure difference between plasma and interstitial fluid - blood coagulation -pH buffering What lymphatic organ has red and white pulp? The Spleen What vessels hold the most amount of blood? Veins What happens to cardiac output during aerobic exercise? Cardiac output increases and the total resistance decreases What is right sided heart failure? failure of the right ventricle to pump efficiently causing blood to be backed up What are signs and symptoms of right heart failure? Awakening with SOB SOB during exercise or lying flat Coughing Wheezing Difficulty Concentrating Dizziness Fatigue Fluid Retention (edema) Increased urinary urgency Nausea/poor appetite Difficulty during exercise Weight Gain What is left sided heart failure? The most common failure. Backup of blood into the left atrium and pulmonary veins. Usually associated with Coronary artery disease heart attack HBP What are signs and symptoms of left sided heart failure? Constant coughing SOB with walking/bending over waking up with SOB Weight Gain Edema Cardiogenic shock Enlarged heart arrhythmia What arteries do you feel to check for pulse? Superficial Temporal External Maxillary Carotid Brachial Ulnar Radial Femoral Popliteal Posterior Tibial Dorsalis Pedis Identify the main arteries off the heart Left Main Coronary Artery Right Coronary Arteries Label the layers of the a blood vessel Tunica intima Tunica Media Tunica Externa Basement Membrane Endothelium What is MALT? mucosa associated lymphoid tissue - lymphoid tissues in mucous membranes throughout the body How to calculate MAP (essay) MAP= Mean Arterial Pressure SBP = Systolic Blood Pressure DBP= Diastolic Blood Pressure Why does cancer metastasis to different regions? (essay) The adhesion of the cancerous cells break down which allows them to break away from the original tumor and enter the bloodstream or lymph system. Lymphatic spread is the most common route for the cancer to metastasis What factors influence vascular resistance? (essay) Blood viscosity Vessel length Vessel Diameter What factors affect vascular pressure resistance and flow? (essay) Cardiac Output Blood Volume Peripheral resistance Viscosity