[ANAT] SCROTUM & TESTIS

Question 1

external genital organs (5)

Answer 1

1-scrotum
2-testis
3-epididymis
4-spermatic cord
5-penis

Question 2

internal genital organs (4)

Answer 2

1-prostate
2-seminal vesicles
3-vas deferens
4-ejaculatory duct

Question 3

scrotum contains

Answer 3

testis
epidydymis
spermatic cord

Question 4

site of scrotum

Answer 4

below symphysis pubis
b/w anteromedial aspects of thighs

Question 5

layers of scrotum

Answer 5

1-skin
2-superficial fascia (dartos & colle’s)
3-external spermatic fascia
4-cremasteric muscle & fascia
5-internal spermatic fascia
6-loose areolar tissue

Question 6

superficial fascia covering scrotum consists of

Answer 6

dartos muscle
colle’s fascia

Question 7

external spermatic fascia is an extension of

Answer 7

external oblique aponeurosis

Question 8

internal spermatic fascia is an extension of

Answer 8

fascia transversalis

Question 9

cremasteric muscle & fascia are an extension of

Answer 9

internal oblique muscle

Question 10

loose areolar tissue of scrotum connects which 2 structures

Answer 10

internal spermatic fascia w/ parietal layer of tunica vaginalis

Question 11

dartos muscle characteristics

Answer 11

1-smooth muscle
2-supply: sympathetic fibers
3-regulates temp of testis & scrotum

Question 12

nerve fibers supplying dartos muscle accompany____

Answer 12

genital branch of genitofemoral n.

Question 13

scrotum is divided into 2 halves by

Answer 13

scrotal septum

Question 14

scrotal septum indicates

Answer 14

bilateral origin of scrotum from 2 genital swellings

Question 15

which side of scrotum is longer & why?

Answer 15

left.
longer left spermatic cord

Question 16

characteristics of skin covering scrotum

Answer 16

has longitudinal median raphe
thin, pigmented, rugose
sebaceous & sweat glands

Question 17

longitudinal median raphe of scrotum demarcates

Answer 17

line of fusion of 2 halves of scrotum during development

Question 18

anterior 1/3 of scrotum nerve supply

Answer 18

1-ilioinguinal nerve
2-genital br of genitofemoral

Question 19

posterior 2/3 of scrotum nerve supply

Answer 19

1-scrotal br of perineal nerve
2-perineal br of posterior cutaneous nerve of thigh

Question 20

L1 supplies

Answer 20

anterior 1/3 of scrotum

Question 21

S3 supplies

Answer 21

posterior 2/3 of scrotum

Question 22

scrotum arterial supply

Answer 22

1-external pudendal br of femoral artery
2-scrotal br of internal pudendal artery
3-cremasteric br of inferior epigastric artery

Question 23

1ry sex organ

Answer 23

testis

Question 24

tunica albuginea is thickened along the

Answer 24

Mediastinum of testis

Question 25

describe structure of testis in detail

Answer 25

1- Tunica albuginea sends fibrous septa & divides testis into 200-300 lobules 2-each lobule has 2 seminiferous tubules 3-seminiferous tubules unite & form seminiferous ductules 4-seminiferous ductules unite & form rete testis @ mediastinum testis 5-rete testis give rise to 12-20 vasa efferentia 6-vasa efferentia form head of epididymis 7-unite & form duct of epididymis

Question 26

testis arterial supply

Answer 26

1-testicular artery: br of abdominal arota 2-artery of vas: br of superior vesical 3-cremasteric: br of inferior epigasteric

Question 27

testis venous drainage

Answer 27

right testicular vein left testicular vein

Question 28

right testicular vein drains into

Answer 28

IVC

Question 29

left testicular vein drains into

Answer 29

left renal vein

Question 30

testicular artery is a branch of

Answer 30

abdominal aorta @ L2

Question 31

testicular artery is a branch of

Answer 31

abdominal aorta @ L2

Question 32

abdominal aorta branches into testicular artery at level

Answer 32

L2

Question 33

artery of vas is a branch of

Answer 33

superior vesical artery

Question 34

cremasteric artery is a branch of

Answer 34

inferior epigastric artery

Question 35

testis lymphatic drainage

Answer 35

pre-aortic LNs lateral aortic LNs

Question 36

plexus regulating temperature of testis

Answer 36

pampiniform plexus

Question 37

pampinform plexus condenses into

Answer 37

4 veins @ superficial inguinal ring 2 veins @ deep inguinal ring

Question 38

testis nerve supply

Answer 38

sympathetic fibers accompanying testicular artery

Question 39

nerve fibers supplying testis are connected to

Answer 39

T10

Question 40

how to identify the side

Answer 40

1-epididymis is posterior to testis 2-vas deferens lies postero-medially 3-sinus of epididymis is lateral

Question 41

testis are kept cool for spermatogenesis by

Answer 41

1-vascularity of scrotal skin ⤷ rich in sweat glands 2-absence of subcutaneous fat 3-Relaxation of dartos muscle

Question 42

testis are kept warm through

Answer 42

1-contraction of dartos muscle 2-contraction of cremaster muscle

Question 43

relaxation of dartos muscle causes

Answer 43

elongates scrotal skin ↑surface area of scrotum

Question 44

sinus of epididymis is located

Answer 44

LATERALLY

Question 45

site of testis

Answer 45

suspended in scrotum by spermatic cord

Question 46

posterior border is related to

Answer 46

vas deferens epididymis

Question 47

upper pole of testis provide attachment for

Answer 47

spermatic cord

Question 48

upper pole of testis is related to

Answer 48

appendix of testis

Question 49

border not/partially covered by tunica vaginalis

Answer 49

posterior border

Question 50

the lateral part of the posterior border is related to

Answer 50

epididymis

Question 51

posterior border of testis is separated from epididymis by

Answer 51

sinus of epididymis

Question 52

coverings of testis

Answer 52

T. vaginalis T. albuginea T. vasculosa

Question 53

innermost covering

Answer 53

T. vaginalis

Question 54

deepest covering

Answer 54

T. vasculosa

Question 55

T. vaginalis represents

Answer 55

lower end of processus vaginalis

Question 56

tunica vaginalis covers___except__

Answer 56

whole testis except posterior border

Question 57

layers of T. vaginalis

Answer 57

parietal & visceral

Question 58

T. albuginea is covered by parietal T. vaginalis all around except

Answer 58

posteriorly (entrance of BVs)

Question 59

T vasculosa

Answer 59

innermost vascular layer vascularized CT

Question 60

T vasculosa lines

Answer 60

lobules

Question 61

proximal part of T. vaginalis is obliterated at_____to form____

Answer 61

birth to form vestige of processus vaginalis