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Reproductive > Male Reproductive Anatomy > Flashcards

Male Reproductive Anatomy Flashcards

1
Q

Difference between male and female pelvic diaphragm

A

Urogenital triangle of male has only one opening for urethra.

Female has two openings - urethra and vagina

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2
Q

Difference between male and female deep perineal pouch

A

In males, only one skeletal muscle sphincter in urogenital triangle
Neurovascular structures that supply penis

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3
Q

Contents of testes

A

Seminiferous tubules

Tunica albuginia surrounds seminiferous tubules (thick connective tissue)

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4
Q

Number of seminifeorus tubules in each teste

A

Around 400 - 600

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5
Q

Path of spermatozoa in testes
1)
2)
3)

A

1) Produced in seminiferous tubules
2) Collected in the rete testis
3) Stored in the epididymus until ejaculation

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6
Q

Where to spermatozoa mature?

A

Epididymus

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7
Q

What occurs to spermatozoa in the epididymus?

A

They are stored, gain motility (mature)

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8
Q

Location of epididymus relative to testes

A

Superior, sits along top, side of testes

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9
Q

Where does gonadal development occur?

A

On the posterior abdominal wall

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10
Q

Timeline of descent of testes
1)
2)

A

1) 7 months - descend towards inguinal canal

2) 9 months - Through inguinal canal into scrotum

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11
Q

Where are the testes at the 7th month of gestation?

A

Descending towards the inguinal canal

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12
Q

What does the spermatic cord contain?

A

Blood vessels, nerves, duct system (vas deferens), layers of abdominal wall.

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13
Q

Where does the spermatic cord run?

A

Through inguinal canal, into scrotum

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14
Q

What is the vas deferens?

A

Muscular (smooth) duct which transports spermatozoa to ejaculatory duct

Part of spermatic cord

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15
Q

Which division of the nervous system mediates ejaculation?

A

Sympathetic

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16
Q

Where does the vas deferens penetrate the abdominal wall?

A

The inguinal canal

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17
Q 
Path of the vas deferens
1)
2)
3)
4)
A

1) Ascends from testes
2) Inguinal canal
3) Descends along lateral wall of pelvic cavity
4) Meets duct of seminal vesicle, forms ejaculatory duct

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18
Q

What does a vasectomy entail?

A

Ligation of the vas deferens

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19
Q

Role of the accessory glands

A

Contribute to volume of semen

20
Q

Glands making up accessory glands
1)
2)
3)

A

1) Seminal vesicles
2) Prostate
3) Bulbourethral glands

21
Q

Location of bulbourethral gland

A

In deep perineal pouch

22
Q

Role of seminal vesicles

A

1) Contribute to volume of sperm
2) Provide fructose - energy source for sperm
3) Provides coagulating agent

23
Q

Location of seminal vesicles

A

Posterior surface of bladder

24
Q

Location of the prostate

A

Inferior to bladder
Anterior to rectum
Superior to perineal membrane
Surrounds urethra

25
Q

Role of prostate

A

Provides ~20% of volume of semen

Role in activating sperm

26
Q

Structure of prostate

A

~30 - 40 separate glands, ducts open into prostatic urethra

27
Q

Path taken by ejaculatory duct

A

Pierces prostate to join with the prostatic urethra

28
Q

Role of bulbourethral glands

A

Lubricates urethra with mucous-type secretions

Forms pre-ejaculate

29
Q

Where do the bulbourethral ducts open?

A

Spongy urethra

30
Q

Benign prostatic hypertrophy

A

Occurs in most elderly men

Hypertrophy of central prostate

31
Q

Prostate cancer

A

Common in elderly men

Affects entire thickness of prostate

32
Q

Diagnosis of benign prostatic hypertrophy

A

Digital rectal examination reveals bulky prostate

33
Q

Diagnosis of prostate cancer

A

Digital rectal examination reveals rock-hard prostate

34
Q

What form the attachments for the penis?

A

Pubic arch

Perineal membrane

35
Q

What shape is the penis body?

A

Pendulous

Surrounded by skin

36
Q

Constitution of penile erectile tissue

A

Two corpora cavernosa

One corpus spongiosum

37
Q

What expands to form the glans penis?

A

Corpus spongiosum (expands distally)

38
Q

What does the corpus spongiosum expand distally to form?

A

Glans penis

39
Q

Which division of the nervous system mediates erection?

A

Parasympathetic

40
Q

How does erection occur?

A

Parasympathetic NS relaxes arteries in penis, allows erectile tissue to fill with blood

Isciocavernosus and bulbospongiosus muscles move blood from the root into the body of the penis

Ischiocavernosus and bulbospongiosus constrict venous drainage

41
Q

What is the scrotum the analogue of?

A

Labia majora in females

42
Q

How does the scrotum form?

A

Labia majora fuse to form raphe

43
Q

Another name for foreskin

A

Prepuse

44
Q

What is the prepuse?

A

Foreskin

45
Q

What thick connective tissue surrounds the seminiferous tubules?

A

Tunica albuginia

Reproductive (5 decks)

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