A comprehensive lesson on the male reproductive system focusing on anatomy, physiology, and health maintenance for high school students, featuring tiered instruction and clear learning objectives aligned with Massachusetts standards.
Produces alkaline fluid to protect sperm from acidity.
Cowper's Gland
Neutralizes urethra acidity before ejaculation.
Sperm's Epic Journey
1
Testes
Produced
2
Epididymis
Matures
3
Vas Deferens
Transport
4
Urethra
Exit
The Mixture
Sperm (the cells) + Glandular Fluids = Semen
Hormone: Testosterone
T
Physical Growth
• Stimulates muscle growth & strength
• Increases bone density
• Deepens voice (larynx growth)
• Triggers facial & body hair
Reproduction
• Regulates libido (sex drive)
• Essential for Spermatogenesis (making sperm)
• Regulated by the Pituitary Gland
Common Health Conditions
Testicular Cancer
• Most common in males ages 15–35
• Sign: Painless lump or swelling
• 95%+ survival if caught early
Infertility
• Inability to cause pregnancy (1 year)
• Causes: Low count, poor motility
• Linked to STIs & lifestyle
STIs & Infections
• Chlamydia/Gonorrhea often "stealth"
• Can cause permanent scarring
• Prostatitis common in young males
Erectile Dysfunction
• Inability to maintain an erection
• Often a sign of stress or circulation issues
• Affects millions across all ages
Prevention is Power
Testicular Self-Exam (TSE)
How to Perform (Monthly):
1
Stand in front of a mirror after a warm shower.
2
Roll each testis between thumb and fingers (feel for lumps).
3
Note the epididymis (soft cord on back) — this is normal.
Early detection saves lives!
Daily Hygiene
• Wash daily with mild soap
• Retract foreskin to clean (if applicable)
• Wear clean, breathable underwear
Activity Time
Open your Worksheet and follow the Tier instructions.
Tier 2
Supported matching, labeling, and guided case study review.
Tier 3
Advanced analysis, path of sperm narration, and health condition reasoning.
30 MINUTES REMAINING
Exit Ticket
01
Explain the relationship between the scrotum and sperm production in one sentence.
02
Suggest two specific health actions Zaire should take starting today.
Submit your worksheet before leaving!
D. Infection passed through sexual contact; often has no symptoms.
Exit Ticket (10 pts)
1. Pick ONE structure (like the testes or scrotum) and explain what it does in your own words.
2. Name ONE thing Zaire can do to protect his health starting today.
Effect 1
Effect 2
Effect 3
3. Thermal Regulation: Explain the biological necessity of the scrotum being external to the pelvic cavity. What would happen if the testes remained at core body temperature (37°C)? (10 pts)
Health Assessment: True or False + Justification (15 pts)
1. Many STIs, such as chlamydia and gonorrhea, show obvious physical symptoms immediately after infection.
TRUE FALSE
Justify your answer:
2. Testicular cancer is highly treatable and has a survival rate over 95% if detected early via self-exams.
TRUE FALSE
Justify your answer:
3. Erectile dysfunction is strictly an age-related condition and cannot indicate other chronic health issues.
TRUE FALSE
Justify your answer:
Exit Ticket (Summarizer)
Apply Learning: Suggest TWO specific, medically-accurate self-care actions Zaire should implement based on today's lesson to ensure his long-term reproductive health.
