How it Works
Try Naxlex NCLEX-RN (Free-Trial)

Which body cavity houses the organs responsible for digestion?

A.

Cranial cavity

B.

Thoracic cavity

C.

Pelvic cavity

D.

Abdominal cavity

Answer and Explanation

The Correct Answer is D

A. Cranial cavity: The cranial cavity houses the brain and associated structures. It does not contain organs responsible for digestion, so it is not involved in the digestive system.

B. Thoracic cavity: The thoracic cavity contains the heart and lungs within the ribcage. While it is critical for respiration and circulation, it does not house the primary organs of digestion.

C. Pelvic cavity: The pelvic cavity contains the bladder, reproductive organs, and the rectum. While part of the lower digestive tract (rectum) is present here, the majority of digestive organs are located in the abdominal cavity.

D. Abdominal cavity: The abdominal cavity contains the major digestive organs, including the stomach, liver, pancreas, intestines, and gallbladder. It provides the primary space for digestion and nutrient absorption.


Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Free Nursing Study Resources

Related Questions

Correct Answer is C

Explanation

A. Controls metabolic rate: Metabolic rate is primarily regulated by the thyroid gland through hormones like thyroxine, not the thymus.

B. Regulates circadian rhythms: Circadian rhythms are regulated by the pineal gland via melatonin secretion, not the thymus.

C. Produces T-cells and secretes thymosins: The thymus is a primary lymphoid organ that produces and matures T-lymphocytes and secretes thymosins, which are essential for immune system development and function.

D. Secretes insulin to regulate blood sugar: Insulin is produced by the pancreas, not the thymus, and is responsible for controlling blood glucose levels.

Correct Answer is D

Explanation

A. It synchronizes ventricular contraction: Synchronization of ventricular contraction is primarily the function of the Purkinje fibers and the coordinated conduction through the AV node and bundle branches, not the SA node.

B. It prevents backflow of blood: Prevention of backflow is the role of heart valves, such as the mitral and aortic valves, rather than any conduction system component.

C. It delays impulses to allow ventricular filling: The AV node provides a delay to allow the ventricles to fill with blood, which is distinct from the SA node’s role.

D. It initiates the action potential for heart contractions: The sinoatrial (SA) node, located in the right atrium, generates electrical impulses that set the pace for heart rate. These impulses trigger atrial contraction and initiate the cardiac conduction cycle.

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

Register