lOMoAR cPSD| 61371432
NR304 WEEK 6 MALE GENITOURINARY SYSTEM STUDY GUIDE |
VERIFIED STUDY | 100% CORRECT | 2026 UPDATES
⭐ WEEK 6 MASTER STUDY GUIDE — MALE GENITOURINARY SYSTEM
🩺 I. ANATOMY OVERVIEW (Simple Definitions)
Penis
• Conducts urine and semen.
• Glans: head of penis.
• Urethral meatus: urinary opening. Scrotum
• Loose skin sac contains testes.
• Rugae: folds of scrotal skin.
• Cremaster muscle: raises/lowers testes for temperature regulation.
Testes
• Produce sperm and testosterone. Normal:
o Oval
o Firm, rubbery o Smooth
o Equal in size Epididymis
Coiled duct storing sperm.
• Soft, non-tender.
Spermatic cord
Includes vas deferens, vessels, nerves.
Vas deferens
• Carries sperm to urethra.
Prostate
• Produces seminal fluid.
• Located anterior rectal wall.
• Normal: smooth, rubbery, non-tender, heart-shaped, median sulcus present.
⭐ II. DEVELOPMENTAL CONSIDERATIONS
Infants
• Testes descended at birth.
, lOMoAR cPSD| 61371432
• DO NOT retract foreskin.
• Hydroceles common <2 yrs.
• Scrotum may appear large due to maternal hormones.
Adolescents Tanner
staging:
1. Testes enlarge FIRST
2. Pubic hair appears
3. Penis length increases
4. Scrotum darkens
5. Adult pattern
• Nocturnal emissions NORMAL.
Adults
Continue fertility.
Prostate begins gradual enlargement.
Older Adults
• ↓ Testosterone
• ↓ Pubic hair ↓ Penis size
• Testes less firm
• Scrotum hangs lower
• ↑ BPH
• ↑ Erectile changes
• ↑ Urinary retention, nocturia
⭐ III. RISK FACTORS (Must Know!)
Prostate Cancer
• Age > 50
• African American men
• Family history
• BRCA1/BRCA2
• High-fat diet
• Obesity
• Smoking
Testicular Cancer
• Age 15–35
• Cryptorchidism
• Caucasian
• Family history
, lOMoAR cPSD| 61371432
STIs
• Multiple partners
• No condom use
• MSM population
• Younger age
• Lack of screening
UTIs
• BPH → retention
• Catheters
• Dehydration
• Diabetes
Bladder Cancer
• Smoking #1 cause
• Chemical exposures
⭐ IV. HEALTH HISTORY QUESTIONS
Urinary Symptoms
Frequency
Urgency
Nocturia
• Hesitancy / straining
• Oliguria
• Polyuria
• Pain/burning
• Hematuria
Sexual Health
• STIs
• Partner gender
• Safe sex practices
• Contraceptive use
Scrotal Concerns
• Pain
• Lumps
• Swelling
• Trauma
NR304 WEEK 6 MALE GENITOURINARY SYSTEM STUDY GUIDE |
VERIFIED STUDY | 100% CORRECT | 2026 UPDATES
⭐ WEEK 6 MASTER STUDY GUIDE — MALE GENITOURINARY SYSTEM
🩺 I. ANATOMY OVERVIEW (Simple Definitions)
Penis
• Conducts urine and semen.
• Glans: head of penis.
• Urethral meatus: urinary opening. Scrotum
• Loose skin sac contains testes.
• Rugae: folds of scrotal skin.
• Cremaster muscle: raises/lowers testes for temperature regulation.
Testes
• Produce sperm and testosterone. Normal:
o Oval
o Firm, rubbery o Smooth
o Equal in size Epididymis
Coiled duct storing sperm.
• Soft, non-tender.
Spermatic cord
Includes vas deferens, vessels, nerves.
Vas deferens
• Carries sperm to urethra.
Prostate
• Produces seminal fluid.
• Located anterior rectal wall.
• Normal: smooth, rubbery, non-tender, heart-shaped, median sulcus present.
⭐ II. DEVELOPMENTAL CONSIDERATIONS
Infants
• Testes descended at birth.
, lOMoAR cPSD| 61371432
• DO NOT retract foreskin.
• Hydroceles common <2 yrs.
• Scrotum may appear large due to maternal hormones.
Adolescents Tanner
staging:
1. Testes enlarge FIRST
2. Pubic hair appears
3. Penis length increases
4. Scrotum darkens
5. Adult pattern
• Nocturnal emissions NORMAL.
Adults
Continue fertility.
Prostate begins gradual enlargement.
Older Adults
• ↓ Testosterone
• ↓ Pubic hair ↓ Penis size
• Testes less firm
• Scrotum hangs lower
• ↑ BPH
• ↑ Erectile changes
• ↑ Urinary retention, nocturia
⭐ III. RISK FACTORS (Must Know!)
Prostate Cancer
• Age > 50
• African American men
• Family history
• BRCA1/BRCA2
• High-fat diet
• Obesity
• Smoking
Testicular Cancer
• Age 15–35
• Cryptorchidism
• Caucasian
• Family history
, lOMoAR cPSD| 61371432
STIs
• Multiple partners
• No condom use
• MSM population
• Younger age
• Lack of screening
UTIs
• BPH → retention
• Catheters
• Dehydration
• Diabetes
Bladder Cancer
• Smoking #1 cause
• Chemical exposures
⭐ IV. HEALTH HISTORY QUESTIONS
Urinary Symptoms
Frequency
Urgency
Nocturia
• Hesitancy / straining
• Oliguria
• Polyuria
• Pain/burning
• Hematuria
Sexual Health
• STIs
• Partner gender
• Safe sex practices
• Contraceptive use
Scrotal Concerns
• Pain
• Lumps
• Swelling
• Trauma
