male reproductive system anatomy. ground rules respect what other people say; no put-downs be...

Male Male Reproductive Reproductive

SystemSystemAnatomyAnatomy

Ground RulesGround Rules Respect what other people say; no put-downs Be sensitive to other people’s feelings Not answering a question is all right Respect other people’s differences, family values, and

traditions Keep discussions and questions away from a personal

level – No individual stories; no names Keep confidential all comments made by students Remember that questions are not ‘dumb’ Use scientific terms – no slang Remember all rules of classroom behavior Raise hand to ask question or respond Submit questions of true concern to the teacher at the

end of class (Question Box) NO SIDE CONVERSATIONS

Male Reproductive Male Reproductive SystemSystem

I. I. PenisPenis – – externalexternal organ organ

A. Functions - part of both Urinary and Reproductive A. Functions - part of both Urinary and Reproductive SystemsSystems

1. Passage of 1. Passage of urineurine

2. Passage of 2. Passage of semensemen – fluid that may contain sperm – fluid that may contain sperm

3. Reacts to sensual feelings – 3. Reacts to sensual feelings – erectionerection

B.B. Parts - Parts -

1. 1. ForeskinForeskin- - skinskin surrounding the tip of the penis may surrounding the tip of the penis may be be surgically removed by circumcision (at birth) surgically removed by circumcision (at birth)

2. 2. ShaftShaft

- body of the penis- body of the penis

- blood vessels/spongy - blood vessels/spongy tissuetissue under skin under skin

3. 3. UrethraUrethra – for passage of – for passage of urineurine or or semensemen


II. ScrotumII. Scrotum – – externalexternal sacsac of skin of skin

A. A. SupportsSupports and and protectsprotects both both testestestes

B. Skin contains muscle fibers B. Skin contains muscle fibers

C. Regulates C. Regulates temperaturetemperature of of testes for sperm testes for sperm production production

D. Keeps testes 1 to 8 degrees D. Keeps testes 1 to 8 degrees below internal below internal body body temperaturetemperature


III. Testicles (Testes) – III. Testicles (Testes) – male male reproductive reproductive organs and organs and glandsglands

A. Two glands/organsA. Two glands/organs

B. Produce B. Produce spermsperm cells – approx. cells – approx. 150 million 150 million each day each day

C. Produce male hormone - C. Produce male hormone - testosteronetestosterone

D. Tubules – sperm productionD. Tubules – sperm production

Male ReproductionMale ReproductionVI. EpididymisVI. Epididymis – stores – stores spermsperm

A. Coiled tubes at A. Coiled tubes at toptop side of side of testestestes

B. Used for storage and B. Used for storage and maturation of maturation of spermsperm

C. Unused sperm will disintegrate into C. Unused sperm will disintegrate into bloodstream bloodstream

V. Vas Deferens V. Vas Deferens –– tubestubes through which through which sperm passsperm pass

A. A. Two tubesTwo tubes 15 to 18 inches long 15 to 18 inches long

B. Connects B. Connects epididymisepididymis to the to the seminal seminal vesiclesvesicles


VI. Seminal VesicleVI. Seminal Vesicle – – storesstores spermsperm prior to prior to ejaculationejaculation

A. Two glands A. Two glands behindbehind bladder bladder

B. B. ConnectsConnects Vas Deferens to Vas Deferens to Urethra – Urethra – ejaculatory ductejaculatory duct

C. Secretes fluid to provide C. Secretes fluid to provide nutrientsnutrients for for sperm life sperm life


VII. VII. ProstateProstate Gland – Gland – production of production of SemenSemen

A. Surrounds A. Surrounds urethraurethra; below ; below bladderbladder

B. Secretes B. Secretes milkymilky substance substance importantimportant for for sperm sperm lifelife, , motilitymotility

C. Prostate fluid and Seminal C. Prostate fluid and Seminal fluid combine fluid combine to form semen to form semen

Male Reproductive Male Reproductive SystemSystemVII. Cowper GlandsVII. Cowper Glands – – Bulbo-urethralBulbo-urethral Glands Glands

A. Two glands just below Prostate A. Two glands just below Prostate GlandGland

B. Secretes substance to B. Secretes substance to “clean” “clean” urethra urethra priorprior to ejaculation to ejaculation

C. Pre-ejaculatory discharge C. Pre-ejaculatory discharge doesdoes containcontain spermsperm

X. UrethraX. Urethra – Passage for – Passage for urineurine or or semensemen

A. A. InternalInternal tube from bladder to tip of tube from bladder to tip of penispenis

B. Part of both Reproductive System and B. Part of both Reproductive System and Urinary SystemUrinary System


X. Problems of the Male SystemX. Problems of the Male System

A. Inguinal A. Inguinal HerniaHernia

B. Cancers B. Cancers

1. 1. TesticularTesticular

2. 2. ProstateProstate

C. C. SterilitySterility

XI. Role of the Male in ReproductionXI. Role of the Male in Reproduction

A. Provide A. Provide spermsperm

Male I nsideMale I nside

Make Fluid for Semen


Pathway for Sperm

Pathway for Sperm

Sperm Mature, Travel Through


Produce Sperm & Male Hormones


Holds UrineHolds Urine

Urine & Semen Leave Body


Copyright ©2006-2008 by J anet P. Realini, M.D., M.P.H.

ANATOMY DIAGRAM for Poster or Transparency, for ACTIVITY 2.2




Pathway for Sperm

Pathway for Sperm








Testicle






Pathway for Sperm

Pathway for Sperm








Epididymis

Testicle






Pathway for Sperm

Pathway for Sperm








Vas Deferens

Epididymis

Testicle






Pathway for Sperm

Pathway for Sperm








Bladder

Vas Deferens

Epididymis

Testicle






Pathway for Sperm

Pathway for Sperm








Bladder

Seminal Vesicle

Vas Deferens

Epididymis

Testicle






Pathway for Sperm

Pathway for Sperm








Bladder

Seminal Vesicle

Vas Deferens

Epididymis

Testicle

Prostate Gland






Pathway for Sperm

Pathway for Sperm








Bladder

Urethra

Seminal Vesicle

Vas Deferens

Epididymis

Testicle

Prostate Gland



male reproductive system anatomy. ground rules respect what other people say; no put-downs be...

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