After processing, blood drains from the liver into the central vein and then the hepatic vein, which empties into the
Aorta
Superior vena cava
Hepatic artery
Inferior vena cava
The Correct Answer is D
A. Aorta: This is the primary systemic artery that carries oxygenated blood away from the heart. It does not receive venous drainage from any organ. Blood flow in the aorta is always moving toward the peripheral tissues.
B. Superior vena cava: This large vein drains the head, neck, and upper extremities into the right atrium. It is located superior to the diaphragm and does not receive blood from the liver. Hepatic drainage occurs via the inferior vessel.
C. Hepatic artery: This vessel is a branch of the celiac trunk that delivers oxygenated blood to the liver parenchyma. It is an inflow vessel rather than an outflow vessel. It provides the liver with its nutrient and oxygen supply.
D. Inferior vena cava: This is the terminal vessel for all venous drainage below the diaphragm. The hepatic veins emerge from the posterior surface of the liver to join this vessel directly. It then returns the blood to the heart.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. To speed up digestion:Rapid dumping of chyme would actually decrease digestive efficiency. Controlled release allows for thorough mixing with pancreatic and biliary secretions. This ensures that chemical hydrolysis is complete before the chyme moves further distally.
B. To increase stomach storage capacity:Gastric emptying rate does not directly change the anatomical capacity of the stomach. The stomach expands through receptive relaxation during ingestion. Emptying is regulated to match the processing rate of the duodenum.
C. To ensure the small intestine is not overwhelmed:The duodenum has a limited capacity to neutralize acid and emulsify fats. Small, controlled boluses of chyme prevent mucosal damage and osmotic imbalances. This regulation is maintained by the enterogastric reflex.
D. To allow absorption of nutrients in the stomach:Nutrient absorption occurs almost exclusively in the small intestine. Holding chyme in the stomach longer does not significantly increase nutrient uptake. The delay is purely for mechanical and chemical processing efficiency.
Correct Answer is B
Explanation
The pharynxis a muscular tube located behind the nasal cavity and mouth, connecting to the esophagus. Its primary role in digestion is to propel swallowed food (bolus) from the oral cavity into the esophagus through coordinated muscular contractions. This process is part of deglutition (swallowing), which involves voluntary initiation in the mouth followed by involuntary reflexes in the pharynx. The pharyngeal muscles contract in sequence, pushing the bolus downward while preventing entry into the respiratory tract.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.