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BIOM20002 - HSF > Lecture 67 - Male Reproductive System > Flashcards

Lecture 67 - Male Reproductive System Flashcards

1
Q

What is the role of the pelvic diaphragm?

A

Support of viscera above

Attachments for external genitalia

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2
Q

What makes up the pelvic diagpragm?

What are the holes?

A

Levator ani

  • urogenital hiatus
  • anal aperture
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3
Q

What is the difference between males and females in the perineal membrane?

A

Males: no vaginal opening

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4
Q

What is the role of the deep perineal pouch?

A

Muscles that make up the sphincter

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5
Q

Where are the testes?

A

In scrotum, externally

Need lower temperature for sperm production

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6
Q

What is contained in the testes?

A 
Semoniferous tubules (400-600)
Surrounded by Tunica albuginea (thick fibrous tissue)
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7
Q

What is the rete testes?

A

Where sperm collects

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8
Q

Where is sperm stored?

A

Epididymus (on top of testes)

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9
Q

Where does sperm mature?

A

In epididymus

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10
Q

When are where do the gonads develop?

A

Very early on

Develop on posterior abdominal wall and then descend

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11
Q

How are the testes externalised?

A

Push through the abdominal wall into scrotum

Drag nerves, vessels and duct with it (spermatic cord)

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12
Q

Describe the route of sperm

A

Epididymis
Vas deferens
Ejaculatory duct
Urethra

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13
Q

What is present in semen?

Where does this come from?

A

Sperm: testes

Also stuff from Seminal vesicle

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14
Q

Draw the ducts

A

**Slide..

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15
Q

What controls ejactulation?

A

Sypathetic nervous system

Contractino (peristalsis) of muscular vas deferens

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16
Q

What is a vasectomy?

A

Cutting of vas deferens

Sperm cannot get out of epididymis

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17
Q

Through what does the vas deferens pass?

A

Spermatic cord

Punches through abdominal wall at Inguinal Canal

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18
Q

What is the role of the accessory glands?

A

Contribute stuff to semen

- many different functions

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19
Q

What are some of the accessory glands?

A

Prostate
Seminal vesicle
Bulbourethral gland

20
Q

Where are the accessory glands?

A

posterior to bladder

Also, one inferior to prostate

21
Q

Where is the ejaculatory duct?

A

Pierces from behind the prostate
Through prostate
Inferior down to urethra

22
Q

Where is the prostate gland?

A

Inferior to bladder

Anterior to rectum

23
Q

Where does the vas enter the prostate?

A

Lateral and posterior

24
Q

Where is the seminal vesicle?

A

Posterior surface of bladder

25
Q

What does the seminal vesicle contribute to semen?

A

Fructose

Coagulating agent

26
Q

What does the prostate surround?

A

The urethra

27
Q

What is the role of the prostate gland?

A

Manufactures much of volume of semen
for Sperm Activation

20% of semen volume

28
Q

How does fluid from the prostate get into the semen?

A

Many ducts that open into the prostatic urethra

29
Q

What is the role of the bulbourethral glands?

A

Mucous secretion for lubrication of urethra

pre-ejaculate

30
Q

Where are the bulbourethral glands?

A

In the deep perineal pouch

31
Q

How does fluid from the bulbourethral gland get into the semen?

A

Ducts pierce into the spongy urethra

32
Q

What things happen to the prostate with age?

A
  1. Benign prostatic hypertrophy
    - constricts the urethra
    - very common
  2. Prostate cancer
    - common
    - Prostate becomes very hard
33
Q

How is prostate cancer treated?

A

Radiotherapy
Chemotherapy
Removal (radical prostatectomy)

34
Q

What happens to micturition with benign prostatic hypertrophy?

A

DIfficulty urinating

35
Q

How can we examine the prostate?

A

Digital rectal examination

36
Q

What is affected in prostate cancer?

A

Entire thickness of prostate

37
Q

How is prostate cancer detected?

A

Blood test

Antigens present in the blood indicating cancer

38
Q

What forms the male external genitalia?

A

Penis

39
Q

What forms the erectile tissue?

A

Corpora cavernosa

Corpus spongiosum

40
Q

Where do the external genitalia attach?

A

Perineum

41
Q

What forms the penis?

A

Roots
Body (Corpora cavernosa, Corpus spongiosum)
External urethral oriface

42
Q

Where does the spongy urethra run in males?

A

In penis, through corpus spongiosum

43
Q

What are the muscles of the male external genitalia?

A

Bulbospongiosum

Ischiocavernosius

44
Q

What controls erection?

A

Parasympathetic nervous system

45
Q

What are the erectile tissues covered with?

A

Skin

apart from Glans Penis

46
Q

What is the scrotum an analogue of?

How is it different?

A

Labia majorum

No fusion event

BIOM20002 - HSF (60 decks)

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