A practical nurse (PN) is assisting with physical examinations at a middle school health clinic. To accurately document developmental milestones, the PN must recognize the expected sequence of pubertal transitions. Arrange the following physical changes in the correct chronological order as they typically appear in a male client.
- 1Testicular enlargement and thinning of the scrotum
- 2Appearance of sparse, straight pubic hair at the base of the penis
- 3Increase in the length and circumference of the penis
- 4Peak velocity of linear growth (adolescent growth spurt)
- 5Growth of facial hair on the upper lip and cheeks
Answer
The correct sequence of male pubertal development begins with testicular enlargement, followed by the appearance of sparse pubic hair, penile enlargement, peak linear growth velocity, and finally the emergence of facial hair.
Male pubertal development follows a highly predictable chronological sequence defined by Tanner staging. It initiates with testicular enlargement (Tanner stage II), followed closely by the appearance of initial pubic hair. Subsequently, the penis begins to enlarge in length and circumference (Tanner stage III). Late in puberty (Tanner stage IV), males experience their peak velocity of linear growth. Finally, late secondary sexual characteristics such as the growth of facial hair and the deepening of the voice manifest.
Step-by-Step Solution
Key Concept
Sequence of Male Pubertal Development (Tanner Staging)
Estimated Time:1m 30s