Chapter 19 Lab

Question 1

What do the testes (testicles) produce?

Answer 1

Sex hormones and sperm

Question 2

What are the slender ducts in which sperm is produced?

Answer 2

Seminiferous tubules –> 1 to 3 in each lobule

Question 3

What cells does the Seminiferous Tubules Epithelium have?

Answer 3

• Germs cells in process of becoming sperm
• smaller number of sustentacular cells which support/protect germ cells, promote their development, and secrete inhibin which regulates sperm production

Question 4

What is the Epididymis?

Answer 4

• Site of Sperm maturation and storage

Question 5

what is the Ductus (Vas) Deferens?

Answer 5

• Where the duct of epididymis straightens inferiorly

Question 6

What are the 3 regions of the male urethra?

Answer 6

• Prostatic Urethra in Prostate Gland
• Membraneous Urethra passing through pelvic floor
• Spongy urethra passing through penis

Question 7

What does the Scrotum contain?

Answer 7

Testes, epididymis, and spermatic cord

Question 8

What are the 4 components of the spermatic cord?

Answer 8

ductus deferens, blood vessels, lymphatic vessels, and nerves

Question 9

What temperature does sperm production require?

Answer 9

Temperature 2 degrees C cooler than pelvic cavity

Question 10

What does the Cremaster muscle of the spermatic cord do in response to cold?

Answer 10

Draws testes closer to the body

Question 11

What is the Pampiniform Plexus?

Answer 11

Network of veins of spermatic cord

carries heat away from arterial blood

Question 12

What are the seminal vesicles?

Answer 12

• Pair of glands on posterior urinary bladder

- Produce secretion forming 60% of semen

Question 13

What is the prostate gland?

Answer 13

Surrounds urethra and ejaculatory duct

opens into prostatic urethra by pores in the urethra wall (milky secretion about 30% of semen)

Question 14

What are the Bulbourethral Glands?

Answer 14

Spherical Glands

During intercourse, they produce the clear fluid (provides lubrication and neutralizes acidity of residual urine in urethra)

Question 15

What is the corpus spongiosum?

Answer 15

• Passes along ventral side of penis
• Encloses urethra
• Expands at distal end to fill entire glans

Question 16

What do ovaries produce?

Answer 16

Egg Cells and sex hormones

Question 17

What are egg follicles?

Answer 17

• Place where egg develops inside ovary
• Released when follicle breaks (ovulation)
• ovary with bulges due to follicles

Question 18

What are the uterine (Fallopian) Tubes?

Answer 18

• Muscular Canal
• extends from ovary to uterus
• Flares into infundibulum at distal end

-

Question 19

What does the Uterus do?

Answer 19

Harbors fetus and provides nutrition, expels fetus

Question 20

What does the lower end of the uterus do?

Answer 20

• Communicates with vagina

- inhibits spread of microorganisms from vagina

Question 21

What does the Uterine Wall consist of?

Answer 21

• Perimetrium –> Thin external serosa
• Myometrium –> thick layer of smooth muscle, responsible for labor contractions
• Endometrium –> Inner muscosa of simple columnar epithelium, site of attachment of embryo, forms part of the placenta in which fetus is nourished

Question 22

What are the layers of the endoetrium?

Answer 22

• Functional, superficial layer which sheds during menstrual period
• Basal, Deeper layer which regenerates a new functional layer

Question 23

The vagina allows for what?

Answer 23

• discharge of menstrual fluid
• Receipt of penis and semen
• Birth of baby

Question 24

What tissue makes up the vagina?

Answer 24

Nonkeratiinized squamous epithelium

Question 25

What is the Hymen?

Answer 25

Membrane stretching across vaginal opening

Question 26

What is the Vulva?

Answer 26

External Genitalia of female

Question 27

What does the vulva include?

Answer 27

Mons pubis, labia majora and minora, clitoris, vaginal orifice, accessory glands, and erectile tissues