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anatomy GU > lec 6 > Flashcards

lec 6 Flashcards

(64 cards)

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1
Q

mons pubis is formed of

A

subcutaneous adipose connective tissue

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2
Q

The three cylindrical masses of erectile tissue are enclosed within ———and separated by a dense connective tissue

A

tunica albuginea

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3
Q

deep fascia of penis—————which contains ————

A

Buck fascia

prominent blood vessels

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4
Q

which structure contains the penile urethra

A

corpus spongiosum

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5
Q

the corpora cavernosa diverge proximally to form

A

crura of penis

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6
Q

the penis root lies in

A

superficial perineal pouch

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7
Q

The corpus spongiosum
proximally it is
distally forms

A

it is continuous with bulb of penis.

it expands in front of corpora cavernosa forming glans penis (head of penis)

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8
Q

The margin of glans projects beyond end of corpora cavernosa to form

A

corona of gland

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9
Q

prepuce (foreskin) is connected to glans penis just below ————– by a median fold known as ————–

A

external urethral meatus

frenulum of penis

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10
Q

The body of penis is supported by two condensations of deep fascia

A

(1) Fundiform ligament of penis

(2) Suspensory ligament of penis

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11
Q

Fundiform ligament of penis Inferiorly, it splits to surround penis and then unite to form

A

scrotal septum

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12
Q

blood supply of penis

A

The internal pudendal artery gives off the following branches:
Artery of bulb: Supplies the corpus spongiosum.

b. Deep arteries of penis: Supply corpora cavernosa.

c. Dorsal arteries of penis: Supply remaining areas of penis.
Veins from penis drain into internal pudendal veins.

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13
Q

seminal vesicle It is related posteriorly ——— from which it is separated by ————-, and medially to ———–

A

to rectum,rectovesical fascia

vas deferens

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14
Q

The vertical axis of each seminal vesicle is directed

A

downwards and medially

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15
Q

The seminal vesicles secrete up to ——- of total volume of seminal fluid

A

85%

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16
Q

anterior relation of seminal vesicle

A

bladder

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17
Q

The prostatic capsule is surrounded by ———-, which is continuous anterolaterally with ————, and posteriorly with —————

A

visceral layer of pelvic fascia
puboprostatic ligaments
rectovescical septum

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18
Q

The anterior muscular surface of prostate is connected to pubic bone by

A

the puboprostatic ligaments.

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19
Q

the prostate is separated from symphyses pubis by

A

retropubic pad of fat

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20
Q

The posterior surface of prostate is separated from ampula of rectum by

A

rectovesical septum

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21
Q

the two ejaculatory ducts enter prostate at which surface

A

upper border of posterior surface

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22
Q

The urethra traversed prostatic gland from ——– to ————

A

base to apex

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23
Q

The apex (inferior aspect) of prostate lies against .

A

superior aspect of sphincter urethrae and deep transverse perineal muscles (urogenital diaphragm)

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24
Q

The prostate is completely divided into ——- lobes

A

5

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25
Anterior lobe (Isthmus) of prostate Lies
in front of urethra
26
Middle lobe of prostate Lies
behind urethra and above ejaculatory duct
27
Posterior lobe of prostate Lies
behind urethra and below ejaculatory duct
28
Right and left lateral lobes of prostate Lie
on either side of urethra
29
They form major part of prostate
Right and left lateral lobes
30
Anterior lobe (Isthmus) of prostate represents superior continuation of ---------------.
urethral sphincter muscle
31
Anterior lobe (Isthmus) of prostate is primarily ————tissue and contains no ----------- tissue
muscular | glandular
32
Blood Supply of the Prostate
The prostate is supplied by inferior vesical, middle rectal and internal pudendal arteries. Veins form plexus within the capsule called the prostatic venous plexus, which drains into internal iliac veins
33
Lymph Drainage of the Prostate
Lymph vessels from prostate end in internal iliac and sacral lymph nodes. Few vessels however drain into external iliac lymph nodes
34
Bulbourethral Glands or Cowper’s Glands relation to membranous part of urethra
lies posterolateral to it
35
Bulbourethral Glands or Cowper’s Glands are largely imbedded in
external urethral sphincter
36
Bulbourethral Glands or Cowper’s Glands duct pierces what ? and then opens to which part of urethra?
perineal membrane | penile urethra
37
when does interstitial (leydig) cells become apparent ? where do they lie ? what do they secrete ?
during puberty in the spaces between adjacent seminiferous tubules testosterone
38
what produces spermatozoa?
The seminiferous tubules
39
Tunica propria is composed of ? enveloping what?
several layers of fibroblasts | enveloping seminiferous tubules
40
The most inner layer adherent to basal lamina of tunica propria consists of?
flattened myoid cells
41
myoid cells have the characteristic of ?
smooth muscle
42
Seminiferous (germinal) epithelium Composed of two types of cells
sertoli or sustentacular cells, and spermatogenic cells (spermatogenic lineage)
43
spermatogenic cells (spermatogenic lineage) are stacked in ------------ layers
4 – 8
44
spermatogenic cells (spermatogenic lineage) consist of 4 types of cells? their function is?
spermatogonium, primary spermatocytes, secondary spermatocytes, and spermatids Their function is to produce spermatozoa
45
The seminiferous epithelium rests on
a well-defined basal lamina
46
Before puberty what type of cells in germinal epithelium of seminiferous ducts
Spermatogonia
47
Spermatogonia type A characterized by
Large round or oval nucleus Condensed chromatin peripheral nucleoli and nuclear vacuole
48
Characteristics of Spermatogonia type B
Dispersed chromatin Central nucleoli No nuclear vacuole
49
spermatogenesis starts with which type of cells? and by which type of division ?
spermatogonium | mitosis
50
spermatogonia type B undergo which type of division ? producing what?
mitosis | primary spermatocytes
51
which type of sperm cells migrate towards the lumen of seminiferous tubule
primary spermatocyte
52
what type of division does the primary spermatocyte undergo? it stays in which phase for how long ? what does it produce
miosis prophase 22 days secondary spermatocyte (23 chromosome)
53
which cells are the largest cells of spermatogenic lineage ?
primary spermatocytes
54
which cells is characterized by presence of chromosomes in various stages of coiling within their nuclei
primary spermatocytes
55
secondary spermatocytes undergo which type of division? forming what ?
second miotic division (rapidly) | spermatides (23 chromosome )
56
Spermiogenesis Is process by which
spermatids are transformed into motile mature spermatozoa
57
during spermatogenesis the golgi forms ------------ that contains -------------
acrosomal vesicle, which accumulates carbohydrates and hydrolytic enzymes.
58
the acrosomal vesicle forms ?
spreads to cover anterior half of progressively elongating and condensing nucleus to form acrosomal head cap
59
the flagellum is formed by ?
One of the centrioles elongates to form a flagellum
60
how does the middle piece forms ? and it has an aggregates of what ?
cytoplasm migrates to surround the proximal part of flagellum forming a thickened region Mitochondria aggregate around flagellum in this region
61
As the flagellum elongates, excess cytoplasm is shed and phagocytosed by which cells ?
sertoli cells
62
the outline of sertoli cells is poorly defined bc of --------
numerous lateral processes
63
what forms the blood-testis barrier?
Adjacent Sertoli cells are bound together by occluding junctions at basolateral part of the cell
64
sertoli cells secrete a lot of substances they are ? and what is their function?
Secretion of factors that regulate spermatogenesis and spermiogenesis Secretion of factors that regulate the function of lydig cells Secretion of inhibin, which suppresses synthesis and release of FSH in the anterior pituitary gland Secretion of tubular fluid, which is used for sperm transport

anatomy GU (11 decks)

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