Which of the following structures is considered a vestigial organ?
a. Sigmoid colon
b. Rectum
c. Appendix
d. Internal sphincter of the anus
C
The appendix is a small, fingerlike appendage off the cecum. It is believed to be a vestigial organ—one whose significance has diminished over time; however, it is lined with lymphatic tissue and may play a role in immune function.
You might also like to view...
A nurse has taught a patient with asthma how to administer his daily inhaler. How would the nurse evaluate the teaching-learning process?
A) Using teaching aides B) Identifying teaching strategies C) Directly observing the patient using his inhaler D) Documenting the teaching session in the patient's record
Which of the following situations might lead a health-care provider to consider testing for diabetes?
1. Recent weight gain related to binging and purging 2. Alcohol abuse 3. Frequent infections that are slow to respond to treatment 4. Sudden onset of dizziness, nausea, vomiting, and diarrhea
A young woman has been in an automobile crash and sustained a laceration across the left side of her face, resulting in a large scar. What nursing diagnosis would be appropriate for this disfigurement?
A) Anxiety C) Deficient Knowledge B) Disturbed Body Image D) Impaired Memory
In NIH's review procedure, the study section assigns priority (intensity) scores only to applications judged to be in the top half of proposals based on a preliminary appraisal by assigned reviewers. What is the lowest possible ranking?
A) 1 B) 10 C) 50 D) 90