Which of the following secretions prevents drying of skin and hair?
a. Sebum
b. Cerumen
c. Sweat
d. Melanin
ANS: A
Most ducts of sebaceous glands open into hair follicles; a few open directly onto the skin surface. Their secretion is sebum, a lipid substance that inhibits the growth of some bacteria and prevents drying of skin and hair. Modified sweat glands called ceruminous glands are found in the dermis of the ear canals. Their secretion is called cerumen or earwax. Sweat provides cooling, and melanin is a pigment.
You might also like to view...
An older woman asks what she can do to reduce the risk of developing osteoporosis. What should the nurse respond to this patient?
A) "The key to preventing osteoporosis is to remain physically active on a regular basis.". B) "For women who have complete menopause, vitamin D supplements are the best form of prevention.". C) "The best thing that you can do is to maximize your calcium intake by including dairy at most meals and taking supplements as well.". D) "You need to make sure you are getting the recommended daily dose of calcium, which may involve taking supplements at each meal.".
A patient has been admitted to the surgical unit from postanesthetic recovery and begun on a morphine patient-controlled analgesic (PCA) pump. What teaching point should the nurse who is performing this action provide to the patient?
A) "It's important that you not push the button twice in rapid succession, so that you avoid giving yourself a double dose." B) "Try to use the deep-breathing techniques that you were taught before you resort to using your PCA." C) "Don't hesitate to use you PCA when you first feel mild pain or when you anticipate you're going to have pain." D) "Please ring your call bell to check with your nurse before you push your PCA button so you can be assessed first."
Nurses who give discharge teaching to patients after colonoscopy call these patients the day after the procedure to check on their status
At that time, patients who have had polyps removed invariably ask how long it will be until they receive their results. The nurses decide to design a study in which they will change their discharge teaching, in order to include information about the timeframe for biopsy results, and measure the results, comparing them with the results for the next month, before the change. Which of the following types of research will they use? a. Correlational b. Quasi-experimental c. Experimental d. Descriptive
A nurse has just recently received certification to teach prepared childbirth. She will be teaching a prepared childbirth class for the first time at a neighborhood church
She has gone to the church to determine which room would be best suited to teach a group of six couples. Which of the following room configurations would be most appropriate for teaching this group? A. A small carpeted room with no furniture B. A large auditorium with a stage and theatre-style seating C. A lunchroom with stationary tables and chairs D. A Sunday-school classroom with tables and chairs