Which skin structures are responsible for fingerprints?
Sudoriferous glands
Dermal papillae
Merkel cells
Arrector pili
The Correct Answer is B
Dermal papillae are small, raised structures in the dermis of the skin. They contain nerve endings, capillaries, and other specialized cells. Dermal papillae are responsible for creating fingerprints, as they push up into the epidermis and create ridges on the surface of the skin. These ridges are what give each person their unique pattern of fingerprints. Sudoriferous glands are responsible for producing sweat, Merkel cells are involved in touch sensation, and arrector pili are responsible for the contraction of hair follicles
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Eating large amounts of turnips and beets can lead to a condition called beeturia, which causes the urine and skin to turn a reddish or purplish color. This condition is harmless and is caused by the betalain pigments present in these vegetables. As a strict vegetarian, it is possible that the client consumes large amounts of these vegetables, which could explain the unusual skin color.
Rice and eggs, carrots and squash, spinach and mustard greens are not known to cause unusual skin color. However, it is important for the nurse to ask the client about her diet and any supplements she may be taking to beter understand the cause of the unusual skin color.
Correct Answer is B
Explanation
When the sympathetic nervous system is stimulated, it activates the "fight or flight" response, which prepares the body for physical activity or stressful situations. This response includes several physiological changes, such as:
Increased heart rate and cardiac output: The sympathetic nervous system releases adrenaline and noradrenaline, which increase heart rate and cardiac output to provide more oxygen and nutrients to the muscles.
Decreased uterine activity: The sympathetic nervous system inhibits uterine contractions to prevent
premature labor.
Decreased pancreatic activity: The sympathetic nervous system inhibits insulin secretion and promotes glucagon secretion to increase blood glucose levels.
Decreased gastrointestinal activity: The sympathetic nervous system inhibits digestive functions to divert blood flow to the muscles.
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