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GERR Anatomy > Male reproductive anatomy > Flashcards

Male reproductive anatomy Flashcards

1
Q

Explain the anatomy of the Testes

A

Testes lies in a pouch that is thin skinned, rugs and pigmented known as the scrotum.
Left testis lies lower than the right.
Each testis is covered by white fibrous capsule called tunica Albuginea

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2
Q

Does the scrotum skin contain subcutaneous fat

A

No it contains dartos muscle

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3
Q

Explain the external spermatic fascia

A

Fascia that covers the testis , epididymus, spermatic cord and vessels

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4
Q

Explain the structure of the testes

A

Each testis is divided into lobules each containing seminiferous tubules that are the site of spermatogenesis.

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5
Q

What do the seminiferous tubules anastomose into

A

Seminiferous tubules become straight tubules that anastomose into Rete testis plexus

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6
Q

What arises from the rete testis

A

12 efferent ducts that pierce into the tunica albuginea and go into the head of epididymus

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7
Q

Explain the capsule of the testis

A

1- Tunica vaginalis : made of parietal outer layer, cavity and visceral layer
2- Inner tunica albuginea capsule

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8
Q

Explain the blood supply and drainage of the testis

A
  • Receive blood from the testicular artery coming off the abdominal aorta.
  • Each testis drains into pampiniform vein plexus that becomes the testicular vein
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9
Q

Where does the right and left testicular veins drain into

A

Right : inferior vena cava

left: left renal vein

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10
Q

Explain the anatomical position of the Epididymis

A

Located along posterior border of Testis.

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11
Q

What is the purpose of the epididymis

A

site of sperm storage and maturation until ejaculation

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12
Q

Explain the structure of the Epididymis

A

Divided into head, body and tail. Tail is continuous with vas deferens

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13
Q

Explain the structure of the spermatic cord

A

3 fascia layers :
1- External spermatic fascia
2- Cremasteric fascia
3- Internal spermatic fascia

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14
Q

The layers of the spermatic cord arises from what

A

Aponurosis of internal and external oblique and transversals fascia

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15
Q

What does the spermatic cord contain

A

1- testicular artery , cremasteric artery , artery of vas
2- pampinofrom vein plexus , cremasteric vein , vein of vas
3- nerve to cremaster muscle , simpatico fibres and ilii-inguinal nerve
4- vas deferens and lymphatic vessels

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16
Q

What is the prostate gland

A

Pyramidal organ surrounding the prostatic urethra.

17
Q

Explain he anatomical relations of the prostate

A 
Superiorly : neck of bladder 
Inferiorly : apex of prostate gland on external sphincter of bladder 
Anteriorly : pubic symphysis 
posteriorly: rectum 
laterally : levator ani muscles
18
Q

Explain the anatomy of seminal vesicles

A

Coiled, sacculated tubes lying at base of bladder. Seminal vesicle duct joins vas deferens to form ejaculatory duct

19
Q

What does the ejaculatory duct travel through

A

Prostate gland

20
Q

Explain the anatomy of urethra

A

1- pre-prostatic : passes vertically through bladder wall
2- prostatic : travels through prostate gland
3- membranous : pierces through external sphincter urethrae ( voluntary )
4- Spongy : transversas corpus spongiosum of penis

21
Q

Where does the sperm enter the urethra

A

Sperm will pass through prostate gland and then into the urethra( prostatic ) . Exits via urinary meatus

22
Q

What does the spongy urethra make

A

The penis

23
Q

What is the perineum

A

Skin between the scrotum and anal region. Penis is part of the perineum

24
Q

Explain the structure of the penis

A

1- root : can’t be seen , attached to pelvis
2- Body : free part that is not attached to anything
3- corona
4- glans : opening of urethra

25
Q

What is prepuce

A

Foreskin

26
Q

What is the penis composed of

A

3 colours of erectile tissue : left corpus cavernosa , right corpus cavernousa, corpus spongiosum

27
Q

What is at the root of the penis

A

Bulb and crura

28
Q

Where does the corpus spongiosum arise

A

The bulb at the root

29
Q

Where does the urethra run through

A

The corpus spongiosum

30
Q

What fills with blood during an erection

A

Mainly the corpura carvernosa , but the spongiosum will as well

31
Q

What is the blood and nerve supply of the penis

A

Dorsal artery , superficial and deep Dorsal vein , Dorsal nerve

32
Q

What is the levator ani made of ( in pelvic floor )

A

1- iliococcygeous muscle
2- pubococcygeus muscle
3- puborectalis muscle

33
Q

What drains the lymph of the bladder, prostate and begging of penis

A

Internal iliac

34
Q

What drain the distal end of the penis

A

Deep inguinal

GERR Anatomy (5 decks)

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