Which of the following is an example of primary sexual characteristic?
Testes
Breast enlargement
Pubic hair
Menstruation
The Correct Answer is A
A. Testes: A primary sexual characteristic because testes are primary reproductive organs directly involved in gamete (sperm) production and hormone secretion.
B. Breast enlargement: A secondary sexual characteristic that develops during puberty under hormonal influence.
C. Pubic hair: A secondary sexual characteristic appearing at puberty due to androgen effects.
D. Menstruation: A reproductive function that begins at puberty (related to primary reproductive organs) and is typically classified with secondary sexual changes rather than an anatomic primary sexual characteristic.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Athlete’s foot: Caused by dermatophyte fungi (tinea pedis), so this is a fungal infection rather than a bacterial one.
B. Gonorrhea: Caused by the bacterium Neisseria gonorrhoeae, so this example is bacterial.
C. HIV: Caused by the human immunodeficiency virus, making it a viral infection.
D. Tapeworm: A parasitic infection caused by a helminth (cestode), not a bacterium.
Correct Answer is C
Explanation
A. Liver: Produces many plasma proteins and has immune roles, but it is not classified as a primary lymphatic organ.
B. Parotid glands: Major salivary (exocrine) glands that produce saliva, not components of the lymphatic system.
C. Spleen: A lymphatic organ that filters blood, removes old red cells, and participates in immune responses.
D. Pancreas: An endocrine and exocrine gland that regulates glucose and secretes digestive enzymes, not a lymphatic organ.
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