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Reproductive System > Anatomy of the Male Reproductive System > Flashcards

Anatomy of the Male Reproductive System Flashcards

1
Q

What is the temperature of the testis, and what is it essential for?

A
  • 3-5 °C
  • essential for: sperm production
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2
Q

What does the body of the penis composed of?

A

3 cylinders of erectile tissue enclosed in a tubular sheath of fascia (Buck)

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3
Q

What is the function of the ejaculatory ducts?

A

drain seminal fluid into the prostatic urethra

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4
Q

What covers the epididymis?

A

TUNICA VAGINALIS covers it with the exception of the posterior border

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5
Q

What does the parietal layer of the scrotum cover?

A

the inner aspect of the scrotal wall

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6
Q

Describe the epididymis?

A

single long coiled duct that courses align the posterolateral side of the testis

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7
Q

what is the testes venous drainage?

A

pampiniform plexus, they combine and form testicular vein

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8
Q

What functions does the cremasteric reflex has?

A

protective and thermoregulatory testicular functions

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9
Q

What are the structures contained inside the scrotum?

A

external spermatic fascia

testes

epididymis

spermatic cord

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10
Q

Where do the testes develop, and where do they move into?

A

develop in the abdomen and move into the scrotum before birth

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11
Q

What is the lymphatic drainage of epididymis?

A

Para-aortic lymph nodes

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12
Q

What is the erectile tissue made up of?

A

two dorsally placed corpora cavernosa and a single corpus spongiosum applied to her ventral surface.

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13
Q

What arteries play a significant role in supplying blood to the scrotum?

A
  • external PUDENDAL branches arising from the femoral arteries
  • SCROTAL branches of the internal pudendal arteries
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14
Q

The bulb of the penis is proximal and anchored to?

A

proximal to corpus spongiosum

anchored to: perineal membrane

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15
Q

What veins drain the penis?

A

Drain into the internal pudendal veins.

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16
Q

Where does the contents of the scrotum drains (lymphatic drainage)?

A

drain to the lumbar lymph nodes

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17
Q

Where does the ejaculatory duct penetrate through?

A

PROSTATE GLAND to connect with the prostatic urethra

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18
Q

(anterior innervation) cremaster muscle and anterior scrotum are innervated by?

A

genitofemoral nerve (L1-L2 segments of the lumbosacral plexus)

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19
Q

What is the innervation of the testes?

A

lesser splanchnic nerve (T10) & genital branch of genitofemoral nerve

20
Q

Where is the scrotum located?

A

thin external sac that is located under the penis

21
Q

What is the nerve supply of the penis, sensation and erectile?

A

Sensation: Pudendal Nerve & Pelvic Plexuses

Erectile:
• Parasympathetic (excitatory)
• Sympathetic (inhibitory)

22
Q

All arterials that supply the penis are branches of?

A

INTERNAL PUDENDAL ARTERY

23
Q

What is the testis path, and how does it help in lymphatic drainage?

A
  • testes migrate from the abdominal wall through the inguinal canal and into the scrotum
  • the testis will drag its blood supply and lymph vessels into the scrotal sac
24
Q

What does the visceral layer of the scrotum coat?

A

the testis and epididymis

25
Q

What is the venous drainage of the epididymis?

A

Pampiform Plexus that reduces into a single vein that ascends through the inguinal canal.

26
Q

Testes arterial blood supply?

A

testicular arteries, stem from abdominal aorta

27
Q

What nerves innervate the cremasteric reflex?

A

ilioinguinal

genitofemoral nerves

28
Q

What is the testes lymphatic drainage?

A

para-aortic lymph nodes

29
Q

What innervates the pudendal?

A

posterior innervation

30
Q

What are the testes covered by?

A

TUNICA VAGINALIS

TUNICA ALBUGINEA: a fibrous capsule

31
Q

Describe ejaculatory ducts..

A
  • less than 1 inch long
  • formed by: union of Vas Deferens, and duct of seminal vesicle
  • pierve posterior surface of prostate and open prostratic part of urethra
32
Q

Where is the prostate located?

A
  • Inferior: to bladder
  • above: to urogenital diaphragm
  • posterior: to pubic symphysis
  • anterior: torectum
33
Q

Structures of prostate?

A

Enclose within thin dense fibrous capsule.

Inner loose sheat derived from pelvic fascia.

34
Q

Arterial blood supply for penis?

A

corpora cavernosa: deep arteries of the penis

corpus spongiosum: artery of the bulb

dorsal artery of the penis

35
Q

What is the lymph drainage of the penis?

A

skin of the penis: medial group of superficial inguinal nodes

deep structures: internal iliac nodes.

36
Q

Where does the wall of the scrotum drains (lymphatic drainage)?

A

into the superficial inguinal lymph nodes

37
Q

At its distal extremity the corpus spongiosum expands to…

A

to form the gland penis which covers the distal ends.

38
Q

What is the scrotum composed of?

A

skin and smooth muscle

39
Q

What is the terminal part of the vas deferens?

A

dilated to form the AMPULA OF THE VAS DEFERENS

40
Q

What is the penis?

A

lo que me da marcos

jajajja jk

Pendulous organ suspended from the front and sides of the pubic arch and containing the greater part of the urethra.

41
Q

What is the scrotum wall thickness?

A

8 mm

42
Q

What is the left testis level?

A

lies at lower level

43
Q

What is the function of the scrotum?

A
  • protect the testes
  • helps with thermoregulation
  • keeps testis temperature
44
Q

What is the ductus deferens?

A

Long muscular duct that transports the spermatozoa from the tail of the epididymis to the ejaculatory duct.

45
Q

The root of the penis consits of?

A

2 crura: they are proximal of corpora cavernosa

attached to: pubic arch & bulb of penis

46
Q

What shape are the testes?

A

Ellipsoid shape

47
Q

What is the epididymis arterial blood supply?

A

Testicular Artery, branch of the Abdominal Aorta

Reproductive System (2 decks)

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