5.3 Male Reproductuve System Flashcards Preview

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Flashcards in 5.3 Male Reproductuve System Deck (44):
0

Presence of this protein triggers the development of male gonads. In its absence, female gonads will develop

SRY protein

1

Divides the cloaca into anal and urogenital orifice

Urorectal fold

2

Division of cloaca into anal canal and urogenital orifice is completed by __ week

7th week

3

Gonadal differentiation occurs during __ to __ weeks

5-7 weeks

4

Wolffian duct differentiates into (4)

Seminal vesicles
Epididymis
Ejaculatory duct
Ductus deferens

5

The mullerian duct develops into (3)

Fallopian tubes
Upper vagina
Uterus

6

Two stages of descent of testes

Transabdominal differentiation
Inguinal scrotal descent

7

Condition where testes failed to descend

Cryptorchidism

8

The persistence of processus vaginalis can result in the formation of a ___. This occurs when peritoneal fluid reenters the tunica vaginalis space within the scrotum

Hydrocoele

9

True or false: as the testis descends towards the scrotum it carries with it one layer of peritoneal covering

False. Two peritoneal coverings.

10

Corpora cavernosa forms by __ week

7th

11

Penile urethra is complete by __ week

14th week

12

What structure of male genitalia results from the differentiation of the mesenchymal masses around the formed penile urethra

Corpus spongiosum

13

Site of spermatogenesus

Testes

14

The copulatory organ

Penis

15

Layer of the scrotum which is the continuation of Scarpa's fascia of the abdomen and Colle's fascia of the urogenital triangle

Dartos fascia/Superficial fascia

16

Layer of scrotum which is the continuation of external oblique fascia of the abdominal wall

External spermatic fascia

17

Layer of scrotum which is the continuation of the internal oblique fascia and also contains some fibers from transversus abdominjs muscle

Cremasteric fascia

18

Function of the cremasteric fascia

Retracts testicles to protect from trauma or cold

19

Layer of scrotum which is the continuation of transversalis fascia; it invests the testicles and penile cord structures

Internal spermatic fascia

20

Covers the testis; consists of an outer parietal layer and an inner visceral layer lining tunica albuginea

Tunica vaginalis

21

Blood supply of scrotum

Anterior portion: anterior branches of deep external pudendal artery
Posterior portion: posterior scrotal branches of perineal a.

22

Venosu drainage of scrotum

External pudendal veins

23

Lymphatic drainage of scrotum

superficial inguinal nodes

24

Nerve supply of scrotum

Anterior: Anterior scrotal nerves from iliiinguinal nerves (L1), genital branch if genitofemoral nerve

25

Main component of the spermatic cord

Vas deferens

26

Transports spermatozoa from testis to epididymis

Ductus / vas deferens

27

Artery supplying testis and epididymis and its origin

Testicular artery, branch if abdominal aorta at L2

28

Contents of the spermatic cord

Vas deferens
Testicular a.
Pampiniform plexus
Cremateric a.
Genital branch of genitofemoral nerve
Artery of vas deferens
Autonomic nerves
Lymphatic vessels
Remains of processus vaginalis

29

The lower testes

Left testes

30

Where spermatogenesis occur

Seminiferous tubules

31

Lining of seminiferous tubules

Stratified cuboidal epithelium

32

Largest cells of spermatogenic lineage; diploid, with partially condensed chromosomes in various stages if synapsis and recombination

Primary soermatocyte

33

Spermatogenic cell which has globules of chromophillic chromatin found free in the nucleoplasm; immediately develops into spermatids; haploid cells

Secondary spermatocyte

34

Also called sustentacular cells which function to support, nourish and envelop the developing soermatozoa

Sertoli cells

35

Sertoli cells are stimulated by which hormone

FSH

36

Cells that secrete testosterone under the influence of LH; rounded or polygonal in shape

Leydig cells

37

Interconnected network of channels within the testes

Rete testis

38

Lining of rete testis

Simple cuboidal epithelium with microvilli

39

Lining and function of ductus efferentes

Simple cuboidal nonciliatesd cuboidal cells alternating with ciliated cells

Absorb most fluid secreted by seminiferous tubules

40

Morphology of prostate gland

Compund tubuloacinar gland

41

Lining of prostate gland

Simple to pseudostratified columnar epithelium

42

Zone of the prostate gland thatnis affected by benign prostatic hyperplasia

Transition zone

43

Ejaculatory duct is formed by the fusion of the ___ and empties into the __

Fusion of the vas deferens and seminal vesicle

Empties into the urethra