NURS 1660 Lecture 11: Male Genitalia
10 Jun 2018
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11-63-166
Week Eleven (December 4 - 8th, 2017)
Health Assessment
Chapter Twenty-Five: Male Genitalia and Rectal Assessment
Anatomy and Physiology Overview
External Genitalia
- The penis has two functions:
1. The final excretory organ of urination
2. Erect (with sexual excitement) to allow penetration for sexual intercourse.
- It can be subdivided into the root, shaft (body) and glans.
- In uncircumcised males, loose, hood-like skin called the prepuce or foreskin
covers the glans.
- Sloughed epithelial cells and mucus collect between the glans and foreskin,
forming a white cheese-like substance called smegma.
- The scrotum is a pouch covered with darkly pigmented, loose, rugosus (wrinkled)
skin. A septum divides the scrotum into two sacs (each of which contains a testis,
epididymis, spermatic cord, and muscle layer known as the cremasteric muscle
→ allows scrotum to relax or contact).
Internal Genitalia
Testes (testicles)
- Function is to produce spermatozoa (sperm) and testosterone.
- Testosterone stimulates pubertal growth of the male genitalia,
prostate and seminal vesicles.
- Inside each testicle is a series of coiled ducts known as seminiferous
tubules, which is where spermatogenesis occurs. Mature sperm are
generated approximately every 90 days.
Ducts
- Are responsible for moving sperm.
Secretory Structures
- The seminal vesicles, prostate gland, and bulbourethral glands produce
and secrete ejaculation fluid known as semen. The semen provides an
alkaline medium needed for mobility and survival of the sperm.
- The prostate gland contains muscular and glandular tissue. It has three
lobes (two lateral, one median).
Rectum and Anus
Rectum
Anal Canal and Anus
Lifespan Considerations
- Infants and Children
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11-63-166
Week Eleven (December 4 - 8th, 2017)
- Newborns pass the first meconium stool within 24-48 hours after birth.
The internal and external sphincters are under involuntary reflexive
control as the myelination of the spinal cord is incomplete.
- Recent studies suggests fewer urinary tract infections in males who have
been circumcised. And that circumcision is associated with a reduced risk
of acquiring HIV through vaginal intercourse.
- Adolescents
- With the onset of puberty, testicular growth begins and the scrotal skin
thins and become pendulous (hangs-down).
- Genital hair begins to appear at base of penis. Testosterone is secreted.
- Older Adults
- May experience distention of the rectum from degeneration of afferent
neurons in the rectal wall, which interferes with relaxation of the internal
sphincter.
- Public hair becomes finer, gray and less plentiful.
- Testosterone leves decline with againg, with may affect both libdo and
secual function.
- Erection becomes more dependent on tactile stimulation and less
responsive to erotic cute.
- Penis may decrease in size and testes drop lower in the scrotum.
Acute Assessment
- Ischemia, trauma, infectious conditions, inflammatory conditions, hernia and acute
situations accompanying a chronic condition (ie. testicular tumor with rupture).
Subjective Data Collection
Make sure to introduce yourself and state your designation, provide privacy, clean equipment,
perform hand hygiene.
Demographic or Identifying Data:
- Name, age, address, phone number, occupation, marital status, number of
children
If you ask the date and time this will be part of general survey (behaviour A&Ox4)
Chief Concern - reason for seeking care:
- Tell me why you came to the clinic today? → What they tell you directs the
remainder of questions.
Past Health History of Patient (General)
- General past health - cancer, blood disorders, arthritis, HTN, diabetes, CAD,
PVD
Surgeries -
Relevant Health History of Patient Pertaining to the Complaint (Genital)
- Surgeries (on penis, scrotum or recutum) (ie. circumsision)
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
The penis has two functions: the final excretory organ of urination, erect (with sexual excitement) to allow penetration for sexual intercourse. It can be subdivided into the root, shaft (body) and glans. In uncircumcised males, loose, hood-like skin called the prepuce or foreskin covers the glans. Sloughed epithelial cells and mucus collect between the glans and foreskin, forming a white cheese-like substance called smegma. The scrotum is a pouch covered with darkly pigmented, loose, rugosus (wrinkled) skin. A septum divides the scrotum into two sacs (each of which contains a testis, epididymis, spermatic cord, and muscle layer known as the cremasteric muscle. Function is to produce spermatozoa (sperm) and testosterone. Testosterone stimulates pubertal growth of the male genitalia, prostate and seminal vesicles. Inside each testicle is a series of coiled ducts known as seminiferous tubules, which is where spermatogenesis occurs. Mature sperm are generated approximately every 90 days.
