Tri A - Male Reproductive System

Question 1

What is the function of the Scrotum?

Answer 1

Supportive sac containing testes, epididymis, spermatic cords

Question 2

Describe the structure of the Scrotum

Answer 2

-Composed of loose skin and superficial fascia
-Internally divided by scrotal septum
-Dartos and Cremaster can move testes closer or further from body

Question 3

What is the function of the Testes?

Answer 3

Site of sperm production

Question 4

Describe the Structure of the Testes

Answer 4

Divided into 200-300 lobules
Each lobule contains 3 coiled seminiferous tubules

Question 5

Name and describe each tissue found in the Testes

Answer 5

Tunica Vaginalis - Covers most of testes, viscous fluid, lubricates testes
Tunica Albuginea - Fibrous Capsule - allows friction free movement
Tunica Vascuosa - Consists of capillaries supported by fine connective tissue

Question 6

What is the function of the Epididymis?

Answer 6

Provides sperm storage

Question 7

Describe the Structure of the Epididymis

Answer 7

Head - lobules formed by efferent ducts emptying into ductus epididymis
Body - coiled duct of epididymis
Tail - continues into Vas Deferens

Question 8

Describe the tissue of the Epididymis

Answer 8

Lined with pseudostratified columnar epithelium - surrounded by smooth muscle layers
Supported by fine areolar tissue
Columnar cells contain microvilli

Question 9

What is the function of the Vas Deferens?

Answer 9

Transports sperms into the urethra
Passes through inguinal canal within spermatic cord along with: Testicular artery, testicular vein, nerves, lymphatic vessels

Question 10

Describe the Inguinal Canal

Answer 10

Two passageways in anterior abdominal wall conveying spermatic cords

Question 11

What is the function of the Ejaculatory Ducts?

Answer 11

Drain seminal fluid into prostatic urethra

Question 12

Describe the structure of the Ejaculatory Ducts and what they are formed by

Answer 12

Composed of: - Outer Fibrous Coat
- Middle Muscular Layer
- Inner Lining of Columnar Epithelium
Formed by: - Vas Deferens
- Seminal Vesicle Duct

Question 13

What is the function of the Seminal Vesicles?

Answer 13

Compress and expel fluid, pushing sperm through urethra

Question 14

Describe the structure of the Seminal Vesicles

Answer 14

2 Fibro-muscular pouches, at base of bladder

Question 15

What is the function of the Prostate?

Answer 15

Secretes thin fluid, helps mobility and fertility of sperm

Question 16

Describe the structure of the Prostate

Answer 16

Isthmus - formed of fibromuscular tissue
Posterior Lobe - glandular part of lateral lobes
Lateral Lobes - Glandular main mass
Median Lobe - cone shaped
Surrounds the urethra

Question 17

What is the function of the Bulbourethral Gland?

Answer 17

Produces lubricating fluid into urethra before ejaculation

Question 18

Describe the structure of the Bulbourethral Gland

Answer 18

Several lobules containing Acini lined by columnar epithelium
Acini form duct - opens into urethra

Question 19

What is the function of the Penis?

Answer 19

Passageway for urine and semen

Question 20

Describe the structure of the Penis

Answer 20

3 cylindrical masses: 2 corpus cavernosum
1 corpus spongiosum
3 parts: Root - consists of bulb, right and left crus
Body - suspended from pubic symphysis, superficial dorsal vein on anterior - surrounds urethra
Glans - terminal portion - formed by expansion of corpus spongiosum

Question 21

What is the function of the Urethra?

Answer 21

Passageway for urine and semen

Question 22

Describe the structure of the Urethra

Answer 22

19-20 cm long
3 parts: Prostatic - passes through prostate
Membranous - prostate to bulb - shortest
Spongy - lies within corpus spongiosum