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203 > Anatomy Of The Male Reproductive Tract > Flashcards

Anatomy Of The Male Reproductive Tract Flashcards

1
Q

3 kidney in development?

A

Pronephros, mesonephros and metanephros (producing true kidney)

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2
Q

Mesonephric duct will become?

A

Ductus deferens

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3
Q

Paramesonephric will become?

A

Uterine tubes and in males it degenerates

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4
Q

How do developing testis descend?

A

By the gubernaculum

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5
Q

Veins of testis?

A

Pampiniform plexus

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6
Q

Which week do testis arrive in scrotum?

A

Week 32

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7
Q

Internal oblique turns into?

A

Cremasteric fascia helps raise testis

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8
Q

Spermatogenesis takes how many days?

A

64

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9
Q

Ejaculatory duct formation?

A

Epididymus, Ductus deferens and duct seminal gland

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10
Q

Seminal vesicles secrete?

A

Alkaline fluid and fructose and coagulate,prostaglandinds, citric and absorbic acid 30% of the volume

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11
Q

Prostrate secretes what % of volume?

A

20

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12
Q

Bulbourethral glands help with?

A

Lubrication

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13
Q

What is prostrate innervated by?

A

Inferior hypogastric (sympathetic) and pelvic splanchnic nerves (parasympathetic)

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14
Q

Visceral Nerve supply?

A

Pelvic splanchnic S2 to S4 and sacral sympathetic, inferior and superor hypogastric

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15
Q

Pudendal nerve passes through?

A

Greater and lesser foramen

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16
Q

In the male the urethral folds have to?

A

Join to form the urethra

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17
Q

Erectile tissue is made of?

A

Corpus spongiosum and paired corpora cavernosa

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18
Q

Penis is supplied by?

A

Internal and external pudendal arteries

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19
Q

Nerve innervation to penis?

A

Ilioinguinal nerve, innervated by s2/s4 pudendal nerve, dorsal nerve to penis

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20
Q

Foreskin is held in place by?

A

Frenulum

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21
Q

Cavernous body is encapsulated by?

A

Tunica albuginea

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22
Q

What type of epithelium in urinary system?

A

Transitional

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23
Q

Prostatic utricle is…?

A

Remenant of paramesonephric duct

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24
Q

Inferior vesical supplies?

A

Base of bladder, ductus deferens, seminal vesicles

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25
Q

Cryptorchidism?

A

One or both of testicles do not descend into scrotum while fetus is developing

26
Q

Patent processus vaginalis?

A

Allows communication between peitoneum and scrotum, fluid in testis

27
Q

Hydrocele?

A

Swelling in scrotum when fluid collects in thin sheath surrounding testicle

28
Q

Hematocele?

A

Collection of blood within scrotum

29
Q

Which gene is key to influence male development?

A

SRY gene

30
Q

Gonads appear as?

A

Ridges

31
Q

Primordial germs cells invade the ridge and then?

A

Become primitive sex cord Indifferent gonad into a testis.

srY gene causes cells to become sertoli and gamete cells

32
Q

SRY gene is located on?

A

Y chromosome,

If moved onto X chromosome wont have male testis

33
Q

Whats included in inguinal canal?

A

Ductus deferens, testiculary artery, veins and nerves, round ligament

34
Q

How mnay boys get hernia?

A

1 in 50

35
Q

What percent of inguinal hernias affect men?

A

98

36
Q

Layers of abdominal wall?

A

External oblique
Internal oblique- cremasteric fascia
Transverse abdominus

37
Q

When do gonads acquire morphological characteristics?

A

Week 7

38
Q

What does SRY gene do?

A

Causes cells within gonad apathetic cords to differentiate into Sertoli cells.

39
Q

What happens in embryology?

A

Primitive germ cells from yolk sac move to gonads and form primitive sex cords

40
Q

Blood and nerve supply to testis

A

Spermatic plexus and testicular artery

41
Q

How many lobules in each testis?

A

250

42
Q

What do Sertoli cells do?

A 
Protect spermatozoa from antibodies
Provide nutrients
Phagocytose excess cytoplasm
Secrete androgen binding protein
Secrete inhibit
Add fluid to the lumen
43
Q

What does inguinal canal include?

A

Ductus deferents testicular artery, nerve vein, round ligament

44
Q

Tranversus abdominal forms?

A

Internal spermatic fascia

45
Q

How much sperm produced per second?

A

600 sperm per gram of testis

46
Q

Arterial supply to ductus deferents?

A

Inferior vesical/ middle rectal

47
Q

Blood supply to seminal vesicles?

A

Inferior vesicle and prostatic vessels ( internal iliac artery)

48
Q

Prostate is 2/3..?

A

Glandular and 1/3 fibromuscular

49
Q

Prostate is 2/3?

A

Glandular and 1/3 fibromuscular

50
Q

What is in deep pouch?

A 
External urethral sphincter
Compressor urethrae
Deep transverse perineal muscle
Dorsal neurovasculature of penis and clitoris
Bulbourethral glands
Urethra
Ischioanal fat pads
51
Q

Superficial pouch includes?

A 
Ischiocarvenosus
Bulbospongiosus
Root of penis 
Clitoris
Bulb of vestibule 
Greater vestibule gland
Urethra
Superficial transverse perineal muscle
Pudendal vessels
52
Q

What supplies anterior part of scrotum?

A

Iliohypogastric and ilioinguinal

53
Q

Without androgens the genital tubercle ( which is made of folds uniting) will only form?

A

Clitoris and urethral fold form labia minoris

54
Q

Gonads don’t acquire male or female morphological characteristics until?

A

Week 7

55
Q

What happens in embryology of a boy?

A

Primordial germ cells in yolk sac invade the ridge, gonads.

Which converts it into a testis that will produce hormones

SRY gene causes the epithelial cords to differentiate into Sertoli cells.

56
Q

What is the nerve supply to the testis?

A

Spermatic plexus

57
Q

Sertoli cells do what for the developing spermatozoa?

A 
Protect them from antibodies in the blood
Provide nutrients
Phagocytose excess cytoplasm
Secrete androgen binding protein
Secrete inhibin
Add fluid to the lumen
58
Q

From where to where is the inguinal canal?

A

Anterior superior iliac spine to pubic tubercle

59
Q

Erection emission and ejaculation?

A

Erection- Deep arteries-supply the corpora-in flaccid state A/V shunts

Increased parasympathetic nerve supply, increases blood flow- diverted to vascular spaces

Increased pressure in erectile tissue thus decreasing venous return

Emission- semen is delivered to the prostatic urethra, prostatic fluid added.

Emission results from sympathetic activity.

Ejaculation-semen expelled through urethra
Inhibition of sympathetic supply-return to flaccid state

60
Q

What is the VAN to the penis?

A

Internal pudendal arteries external pudendal veins

S2/4 pudendal nerve, dorsal nerve to penis, ilioinguinal nerve

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