Which of the following is a component of the integumentary system that secretes pheromones?
Fossa ovalis
Seminiferous tubule
Dermal papilla
Apocrine gland
The Correct Answer is D
The apocrine gland is a component of the integumentary system that secretes pheromones. Pheromones are chemical signals that are released by an individual and can affect the behavior or physiology of other individuals of the same species. The other options are not components of the integumentary system that secrete pheromones. The fossa ovalis is a depression in the interatrial septum of the heart, the seminiferous tubule is a structure in the testes where sperm are produced, and the dermal papilla is a structure at the base of a hair follicle that provides nutrients to the hair.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The result of using a catalyst in a chemical reaction is that the reaction is completed in a shorter amount of time. A catalyst is a chemical substance that affects the rate of a chemical reaction by altering the activation energy required for the reaction to proceed. This process is called catalysis. A catalyst provides an alternative pathway for the reaction, one that has a lower activation energy than the uncatalyzed pathway.
The other options are not correct because they do not accurately describe the result of using a catalyst in a chemical reaction. A more desirable product is not necessarily formed, a greater amount of heat energy is not necessarily released by the reaction, and the yield of the product is not necessarily increased as a result of using a catalyst.
Correct Answer is A
Explanation
Heart and lungs. The thoracic cavity contains the heart and lungs, which are at greatest risk from severe blunt trauma to this area.
B. The brain and spinal cord are not located in the thoracic cavity and are therefore not at greatest risk from blunt trauma to this area.
C. The liver and stomach are located in the abdominal cavity, which is below the thoracic cavity. While these organs may be affected by severe blunt trauma to the thoracic cavity, they are not at the greatest risk.
D. The large and small intestines are also located in the abdominal cavity and are not at the greatest risk from blunt trauma to the thoracic cavity.
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