Male reproductive anatomy

Question 1

What do primary organs do?

Answer 1

Produce sex cells and secrete hormones

Question 2

Primary organ in males?

Answer 2

Testes

Question 3

What do testes do?

Answer 3

Create sperm
Secrete testosterone

Question 4

Primary organs in woman?

Answer 4

Ovaries

Question 5

What do ovaries do?

Answer 5

Create eggs
Secrete estrogen and progesterone

Question 6

What do accessory organs do?

Answer 6

Move sex cells
Create fluids

Question 7

Parasympathetic innervation of testes?

Answer 7

S2-4 Sacral Outflow

Question 8

Sympathetic innervation of testes?

Answer 8

Level T12 Least splanchnic nerve

Question 9

What covers the testes?

Answer 9

Tunica vaginalis
Tunica albuginea

Question 10

What happens with Spermatogenic cells/ spermatocytes?

Answer 10

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

Question 11

What do sustenocytes / sustantacular cells do?

Answer 11

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

Question 12

What do intersitial endocrine cells / Leydig cells do?

Answer 12

Produce testosterone

Question 13

What do myoid cells do?

Answer 13

Contract to move substances through tubules

Question 14

What do semineforous tubules merge into?

Answer 14

A larger set of tubules called rete testis

Question 15

What is the epididymis?

Answer 15

Cup shape structure surrounding testis

Question 16

Where does rete testis drain into?

Answer 16

Into larger tubules at the head of epididymis

Question 17

Where are developed sperm stored?

Answer 17

In tail of epididymis

Question 18

Where does tail of epididymis dilate into?

Answer 18

Ductus deferens/ vans deferens

Question 19

Why does vans deferens have a thick muscular layer?

Answer 19

To squeeze the tube to move mature sperm

Question 20

What does urethra do?

Answer 20

Carries semen from ejaculatory duct

Question 21

Prostate gland surrounds what?

Answer 21

Prosthetic urethra

Question 22

Where does fluid from prostate gland get dumped into?

Answer 22

Prosthetic urethra

Question 23

Membranous/ intermediate urethra

Answer 23

Shortest portion
Found in urogenital diaphragm

Question 24

Spongy urethra

Answer 24

Runs through penis

Question 25

What are seminal vesicles?

Answer 25

Paired glands on posterior surface of urinary bladder

Question 26

What do seminal vesicels do?

Answer 26

Produce 70% of seminal fluid

Question 27

How is ejaculatory duct formed?

Answer 27

Duct of seminal vesicle joins ductus deferens

Question 28

What is the prostate?

Answer 28

Encircles urethra inferiorly to urinary bladder

Question 29

What does prostate do?

Answer 29

Produces 30% of seminal fluid

Question 30

What does bulbo urethral gland do?

Answer 30

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

Question 31

What muscles are part of the scrotum?

Answer 31

Dartos muscle Cremaster muscle

Question 32

What does spermatocord include?

Answer 32

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

Question 33

What erectile tissues make up the body of penis?

Answer 33

Corpora Cavernosa Corpus spongiosum

Question 34

What is the corpus cavernosa?

Answer 34

Paired columns of erictile tissues on the dorsal aspect

Question 35

What is corpus spongiosum?

Answer 35

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

Question 36

Muscles that support external genitilia

Answer 36

Superficial transverse perineal Ischiocavernosus Bulbospongiosus

Question 37

What muscle maintains erection of penis/ clitoris?

Answer 37

Ischiocavernosus

Question 38

Ischiocavernosus description

Answer 38

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

Question 39

Superficial transverse perineal description

Answer 39

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

Question 40

Bulbospongiosus description

Answer 40

Origin: Perineal body Insertion:

Question 41

What is the ampulla?

Answer 41

Expansion of vas deferens before it terminates at ejaculatory duct

Question 42

Shortest portion of urethra

Answer 42

Membranous/ intermediate urethra Found in urogenital diaphragm

Question 43

What are things associated with seminal fluid?

Answer 43

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

Question 44

How is ejaculatory duct formed?

Answer 44

Duct of seminal vesicle joins ductus deferens forming ejaculatory duct

Question 45

What does root of penis consist of?

Answer 45

Bulb Crura

Question 46

What is bulb of penis?

Answer 46

Continuous with corpus spongiosum and anchored by bulbospongiosus muscles

Question 47

What is crura of penis?

Answer 47

Enlargements of the corpora cavernosa and anchored by ischiocavernosus muscles