Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

2.2 T2: Reproductive system, foetal development > T2 L13: Anatomy of the male reproductive tract > Flashcards

T2 L13: Anatomy of the male reproductive tract Flashcards

1
Q

What is the SRY gene for?

A

It initiates the development of a male baby.

It causes cells within the gonad to develop into Sertoli cells

Without this gene functioning, there won’t be any testicular development

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Which duct does the ductus deferens develop from?

A

The mesonephric duct

Under the influence of the SRY gene, the duct stays to carry sperm but degenerates in women

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What does the gubernaculum do?

A

It leads the testes while they descend

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

When testes descend, do they cross the ureter?

A

Yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

At what age do testes begin to descend?

A

At 12 weeks. By week 32 they arrive in the scrotum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Which artery supplies the testes?

A

The testicular artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Which vein drains the testes?

A

Veins from the pampiniform plexus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Which nerve innervates the testes?

A

The spermatic plexus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the function of the seminiferous tubules?

A

They are coiled tubules where sperm is produced

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the function of epididymis?

A

To transport and store sperm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Why is the vas deferens surrounded by smooth muscle?

A

To allow for ejaculation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Describe the structure of seminiferous tubules

A

Highly tortuous and lined by a seminiferous epithelium

They’re surrounded by stroma, loose connective tissue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Why do Sertoli cells enfold developing spermatozoa?

A
  • Protect them from blood antibodies
  • Provide nutrients
  • Phagocytose excess cytoplasm
  • Secrete androgen binding protein
  • Secrete inhibin
  • Add fluid to the lumen
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Between which layers does an inguinal hernia occur?

A

Between the deep and superficial inguinal rings

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What goes through the inguinal canal in men?

A

Ductus deferens
Testicular artery and vein
Nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Does the round ligament go through the inguinal canal in men?

A

No. The round ligament develops into the vas deferens in men

The round ligament goes through the inguinal canal in women

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What % of inguinal hernias affect men?

A

98%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is a patent processus vaginalis (PPV)?

A

It allows a communication between the peritoneum and scrotum. It typically presents as hydrocele

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the function of the cremaster muscle?

A

It moves the testes to suit the temperature (Closer if it’s cold and lower when its warm)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Which VAN supply the ductus deferens?

A

Inferior vesical and middle rectal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What do seminal vesicles secrete?

A

Alkaline fluid, fructose, and coagulate

22
Q

What does the prostate secrete?

A

Prostatic fluid (20% of total fluid)

23
Q

What do bulbourethral glands secrete?

A

Lubricants for the ducts

24
Q

Where are seminal vesicles found?

A

The posterior aspect of the bladder

25
Q

What is the nerve supply the seminal vesicles?

A

Sympathetic and causes ejaculation

26
Q

Which veins and arteries supply the seminal vesicles?

A

Inferior vesicle and prostatic vessels

27
Q

Which veins and arteries supply the prostate?

A

Prostatic veins and arteries

28
Q

Which nerves supply the prostate?

A

Inferior hypogastric and parasympathetic from the pelvic splanchnic nerves

29
Q

Where are bulbourethral glands found?

A

In the external urethral sphincter

30
Q

Which veins and arteries supply the bulbourethral glands?

A

Inferior vesicle and prostatic vessels

31
Q

What is the superficial perineal pouch?

A

A space between the perineal fascia and the perineal membrane

32
Q

What does the superficial perineal pouch in men contain?

A 
The root (bulb and crura) of the penis
Ischiocavernosus
Bulbospongiosis 
Urethra
Superficial transverse perineal muscle 
Pudendal vessels
33
Q

What does the superficial perineal pouch in women contain?

A 
Clitoris 
Ischiocavernousus
Bulb of vestibule (bulbospongiosis)
Greater vestibular gland 
Urethra
Superficial transverse perineal muscle 
Pudendal vessels
34
Q

What does the deep perineal pouch contain in men?

A 
Bulbourethral glands
Dorsal neurovascularture of the penis
Urethra and external urethral sphincter  
Ischioanal fat pads
Deep transverse perineal muscle
35
Q

What does the deep perineal pouch contain in women?

A

Dorsal neurovasculature of the clitoris
Urethra and external urethral sphincter
Ischioanal fat pads
Deep transverse perineal muscle

36
Q

Which parasympathetic nerves supply the perineum?

A

Pevic splanchnic nerves (S2-4)

37
Q

Which sympathetic nerves supply the perineum?

A

Sacral sympathetic trunk

Superior and inferior hypogastric plexuses

38
Q

Which nerves does the pudendal nerve give rise to?

A

Inferior rectal
Perineal branches
Posterior scrotal/labial
Dorsal nerve to the penis/clitoris

39
Q

Which nerve supplies the anterior scrotum?

A

The hypogastric nerve

40
Q

At which gestation do external genitalia begin to develop?

A

At week 3

41
Q

What happens to external genitalia development without androgens?

A

The genital tubercle elongates only slightly to form the clitoris and the urethral folds form the labia minora

42
Q

What is the penile raphe?

A

It’s the line where the scrotal swellings fused during development to create a penis

43
Q

What are the 3 cylindrical bodies of the penis?

A

Paired corpora cavernosa and 1 corpus spongiosum

44
Q

Which nerves supply the penis?

A

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

45
Q

Which veins and arteries supply the penis?

A

The internal pudendal arteries and external pudendal veins

46
Q

What encapsulates the cavernous bodies of the penis?

A

A tough fibrous sheath called the Tunica Albuginea

47
Q

What are the 3 divisions of urethra in men?

A

Prostatic, membranous, and penile

48
Q

What is the prostatic utricle?

A

The remains of what could have developed if they were female

49
Q

What is cryptorchidism?

A

Undescended testes

50
Q

What is a hematocele?

A

A collection of blood within the scrotum

51
Q

What is an orgasm in men physiologically?

A

A contraction of the bulbospongiosis muscle

2.2 T2: Reproductive system, foetal development (16 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions