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2240 Reproductive system > Male reproductive anatomy > Flashcards

Male reproductive anatomy Flashcards

1
Q

What do primary organs do?

A

Produce sex cells and secrete hormones

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2
Q

Primary organ in males?

A

Testes

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3
Q

What do testes do?

A

Create sperm
Secrete testosterone

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4
Q

Primary organs in woman?

A

Ovaries

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5
Q

What do ovaries do?

A

Create eggs
Secrete estrogen and progesterone

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6
Q

What do accessory organs do?

A

Move sex cells
Create fluids

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7
Q

Parasympathetic innervation of testes?

A

S2-4 Sacral Outflow

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8
Q

Sympathetic innervation of testes?

A

Level T12 Least splanchnic nerve

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9
Q

What covers the testes?

A

Tunica vaginalis
Tunica albuginea

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10
Q

What happens with Spermatogenic cells/ spermatocytes?

A

They undergo meiosis to create sperm cells with half the genetic material
Move toward the lumen during development

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11
Q

What do sustenocytes / sustantacular cells do?

A

Surround and support spermatogenic cells
Secrete lubricating to aid the movement of sperm as they exit the seminineforous tubules and move through epididymis toward ejaculatory duct

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12
Q

What do intersitial endocrine cells / Leydig cells do?

A

Produce testosterone

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13
Q

What do myoid cells do?

A

Contract to move substances through tubules

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14
Q

What do semineforous tubules merge into?

A

A larger set of tubules called rete testis

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15
Q

What is the epididymis?

A

Cup shape structure surrounding testis

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16
Q

Where does rete testis drain into?

A

Into larger tubules at the head of epididymis

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17
Q

Where are developed sperm stored?

A

In tail of epididymis

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18
Q

Where does tail of epididymis dilate into?

A

Ductus deferens/ vans deferens

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19
Q

Why does vans deferens have a thick muscular layer?

A

To squeeze the tube to move mature sperm

20
Q

What does urethra do?

A

Carries semen from ejaculatory duct

21
Q

Prostate gland surrounds what?

A

Prosthetic urethra

22
Q

Where does fluid from prostate gland get dumped into?

A

Prosthetic urethra

23
Q

Membranous/ intermediate urethra

A

Shortest portion
Found in urogenital diaphragm

24
Q

Spongy urethra

A

Runs through penis

25
Q

What are seminal vesicles?

A

Paired glands on posterior surface of urinary bladder

26
Q

What do seminal vesicels do?

A

Produce 70% of seminal fluid

27
Q

How is ejaculatory duct formed?

A

Duct of seminal vesicle joins ductus deferens

28
Q

What is the prostate?

A

Encircles urethra inferiorly to urinary bladder

29
Q

What does prostate do?

A

Produces 30% of seminal fluid

30
Q

What does bulbo urethral gland do?

A

Secretes a clear mucus that lubricates the penis to clean the urethra
Lubricates glans penis

31
Q

What muscles are part of the scrotum?

A

Dartos muscle
Cremaster muscle

32
Q

What does spermatocord include?

A

Skin and muscles that surround:
Ductus Deferens
Testicular artery
Pampiniform venous plexus
nerves

33
Q

What erectile tissues make up the body of penis?

A

Corpora Cavernosa
Corpus spongiosum

34
Q

What is the corpus cavernosa?

A

Paired columns of erictile tissues on the dorsal aspect

35
Q

What is corpus spongiosum?

A

Single mid ventral column of erectile tissue that surrounds urethra
Keeps urethra open

36
Q

Muscles that support external genitilia

A

Superficial transverse perineal
Ischiocavernosus
Bulbospongiosus

37
Q

What muscle maintains erection of penis/ clitoris?

A

Ischiocavernosus

38
Q

Ischiocavernosus description

A

Origin: ischial tuberosities
Insertion: Crus of the penis or clitorus
Innervation: Pudendal Nerve (S2-4)
Assists with ejaculation

39
Q

Superficial transverse perineal description

A

Origin: Ischial Tuberosities
Insertion: Perineal Body
Innervated: Pudendal nerve (s2-4)

40
Q

Bulbospongiosus description

A

Origin: Perineal body
Insertion:

41
Q

What is the ampulla?

A

Expansion of vas deferens before it terminates at ejaculatory duct

42
Q

Shortest portion of urethra

A

Membranous/ intermediate urethra
Found in urogenital diaphragm

43
Q

What are things associated with seminal fluid?

A

High in sugar for sperm energy
Prostagladins to promote uterine contractions
Alkaline to neutralize acidic environment of vagina

44
Q

How is ejaculatory duct formed?

A

Duct of seminal vesicle joins ductus deferens forming ejaculatory duct

45
Q

What does root of penis consist of?

A

Bulb
Crura

46
Q

What is bulb of penis?

A

Continuous with corpus spongiosum and anchored by bulbospongiosus muscles

47
Q

What is crura of penis?

A

Enlargements of the corpora cavernosa and anchored by ischiocavernosus muscles

2240 Reproductive system (7 decks)

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