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Repro AM > Male anatomy > Flashcards

Male anatomy Flashcards

1
Q

What forms the erectile tissue of the penis?

A

Corpus cavernosum

Corpus spongiosum

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2
Q

What is the corpus cavernosum?

A

erectile tissue forming the main body of the penis

Continuation of the crura

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3
Q

What is the corpus spongiosum?

A

Erectile tissue formed from the bus of penis and running up the middle of the bottom

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4
Q

What are the muscles of the penis?

A

2 bulbospongiosum muscles

2 ischiocavernosus muscles

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5
Q

What is the function of the bulbospongiosus muscles?

A

Contract to empty urethra

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6
Q

What is the function of the ischiocavernosus muscles?

A

Help maintain erection

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7
Q

Where are the bulbospongiosus muscles?

A

Around base

Associated with bulb of penis

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8
Q

What is the arterial supply of the penis?

A

Internal pudendal artery

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9
Q

What is the venous drainage of the penis?

A

Deep and superficial dorsal veins

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10
Q

What is the nerve supply of the penis?

A

Branch of pudendal

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11
Q

What is the lymphatic drainage of the penis?

A

External iliac

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12
Q

What is the histological appearance of the penis?

A

2 ovals of loosely packed corpus cavernosa and a more densely packed corpus spongiosum containing the urethra
Surrounded by several layers of epithelial cells

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13
Q

What are the layers of the testes?

A

Outer fibrous tunica vaginalis
Tunica albuginea
Tunica vasculosa

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14
Q

What is the tunica vaginalis?

A

Outermost fibrous layers of the testes with 2 layers

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15
Q

What are the layers and cavity of the tunica vaginalis?

A

Visceral and parietal

Cavum vaginale

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16
Q

What is the tunica albuginea?

A

Thick white fibrous tissue capsule

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17
Q

What does the tunica albuginea do?

A

Forms the septa that divide the testes into 200-300 lobules, each containing 1-4 seminiferous tubules

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18
Q

What is the tunica vasculosa?

A

Highly vascularised connective tissue

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19
Q

What are the seminiferous tubules?

A

Long, convoluted sperm producing tubules

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20
Q

What surrounds the seminiferous tubules?

A

Connective tissue myoid cells

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21
Q

What are myoid cells?

A

Contractile cells that help spermatozoa move through the tubules

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22
Q

What is the function of sertoli cells?

A

Mechanical support
Provide nutrition to spermatogenic cells
Form blood testes barrier
Secrete androgen binding protein

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23
Q

What are Leydig cells?

A

Interstitial cells

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24
Q

What is the function of Leydig cells?

A

Produce testosterone

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25
Q

What is the histology of the seminiferous tubules?

A

High convoluted- multiple cross sections in 1 slide
4-8 layers of cells
Leydig cells in interstitial spaces
“empty” area in centre

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26
Q

What is the blood testes barrier?

A

Physical barrier between blood vessels and seminiferous tubules
formed by Sertoli cells

27
Q

What is the epididymis?

A

Smooth muscle tubule connecting testicle to vas deferens

28
Q

What is the structure of the epididymis?

A

Head of thick epithelium and little smooth muscle

Body of intermediate epithelium and smooth muscle

29
Q

What is the function of the head of the epididymis?

A

Receive spermatozoa

Absorb fluid to make soerm more concentrated

30
Q

What is the histological appearance of the epididymis?

A

Several sections seen in 1 slide
Pseudostratified epithelium
Long microvilli
Large lumen

31
Q

What are the layers of the inguinal canal?

A

External spermatic fascia
Cremaster muscle
Internal soermatic fascia

32
Q

What are the contents of the inguinal cord?

A

Spermatic cord

Ilioinguinal nerve

33
Q

What is in the spermatic cord?

A

Vas deferens
Testicular artery
Pampniform plexus

34
Q

What is the blood supply of the testes?

A

Testicular arteries- branch of abode aorta at T12

35
Q

What does the testicular artery cross over?

A

Ureter

External iliac artery

36
Q

What is the venous drainage of the testicles?

A

Pampniform plexus

Testicular veins

37
Q

What do the testicular veins drain to?

A

Right to IVC

Left to left renal vein

38
Q

What is the lymphatic drainage of the testes?

A

Para-aortic

Inguinal

39
Q

What is the vas deferens?

A

Muscular tube arising from tail of epididymis

40
Q

Where does the vas deferens terminate?

A

Joining the duct of the seminal gland to form the ejaculatory duct

41
Q

What s the histology of the vas deferens?

A

Thickly walled tube
3 layers of smooth muscle
Star shaped lumen

42
Q

What are the 3 muscular layers of the vas deferens?

A

Inner and outer smooth muscle

Middle layer of circular muscle

43
Q

Where are the seminal vesicles?

A

Posterioinferior to urinary bladder and superior to prostate

44
Q

What is the function of the seminal vesicles?

A

Secrete majority of seminal fluid

45
Q

What is the structure of the seminal vesicles?

A

Convoluted 5cm long tubes

Cauliflower appearance

46
Q

What is the histological structure of the seminal vesicles?

A

Highly recessed and irregular lumen

Honeycomb appearance

47
Q

What are the 3 zones of the prostate?

A

Central zone
Transitional zone
Peripheral zone

48
Q

Where is the prostate located?

A

Inferior to neck of bladder in midline

49
Q

What is the function of the prostate?

A

Produce seminal fluid containing proteolytic enzymes to ensure semen stays in fluid state

50
Q

What is the arterial supply of the prostate?

A

Prostatic arteries

51
Q

What is the venous drainage of the prostate?

A

Prostatic venous plexus

52
Q

Where do the prostatic veins drain to?

A

internal iliac

53
Q

What is the nerve supply of the prostate?

A

Inferior hypogastric plexus

54
Q

What is the histological appearance of the prostate?

A

Serous alveoli with infolding epithelium

Trabeculae of muscular stroma

55
Q

What is the blood supply of the scrotum?

A

anterior and posterior scrotal arteries

56
Q

What is the anterior scrotal artery a branch of?

A

Deep external pudendal artery

57
Q

What s the posterior scrotal artery a branch of?

A

Internal pudendal artery

58
Q

Wha is the venous drainage of the testes and epididymis?

A

Pampniform plexus and testicualr veins

59
Q

What is the venous drainage of the bladder, penis and prostate?

A

Prostatic, pudendal and vesicle venous plexuses

60
Q

Where do the prostatic, pudendal and vesicle venous plexuses drain to?

A

Internal iliac

61
Q

What is lymphatically drained to the superficial inguinal?

A

Scrotum
Penis
Peineum

62
Q

What is lymphatically drained to the deep inguinal nodes?

A

Glands penis

Distal spongey urethra

63
Q

What is lymphatically drained to the internal iliac nodes?

A 
Corpus cavernosum
Prostate
Seminal vesicles
Vas deferens
Proximal spongey and membranous urethra
64
Q

What is the lymphatic drainage of the testes?

A

Para-aortic nodes

Repro AM (27 decks)

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