Chapter 27 Male reproductive system

Question 1

Name 4 basic parts of the reproductive system

Answer 1

Gonads
Reproductive tract
Accessory gland
Perineal structure

Question 2

Name the parts of the male reproductive system

Answer 2

Gonads
Reproductive tract
Accessory glands
External genitalia

Question 3

The prostate is superior to the urogenital diaphragm T/F

Answer 3

T

Question 4

What does the urogenital separate

Answer 4

• landmark that separates the external genitalia and internal genitalia
• a series of muscle that forms a large sheet/barrier between the pelvic organs and outside environment

Question 5

List the abdominal structures that migrate down into the scrotum

Answer 5

1 Testis
2 epididymis
3 ductus deferens/vas deferens
4 testicular artery and vein

Question 6

The abdominal structures are bound in what

Answer 6

Bound up in the spermatic cord

Question 7

What are the tissue layer that reduces friction

Answer 7

Tunica vaginales
Parietal layer
Scrotal cavity

Question 8

Cremaster muscle = ____________muscle. Dartos muscle = ____________ muscle

Answer 8

Skeletal muscle (mostly voluntary)
Smooth muscle (mostly involuntary)

Question 9

What is the papiniform plexus

Answer 9

Network of small veins that wraps around the testicular artery to create a heat exchange.

THINK RADIATOR

Question 10

Where does sperm production take place

Answer 10

Seminiferous tubules

Question 11

What connects to the seminiferous tubules

Answer 11

Straight tubules

Question 12

What are the functions of the reproductive system

Answer 12

1 Produce reproductive cells

2 Produce sex hormones that influence structure & function of all other systems

Question 13

What is the function of the Rete Testis

Answer 13

Re absorbing fluids

Question 14

Where is the sperm stored

Answer 14

Epididymis

Question 15

Sperm is non motile until this point

Answer 15

Epididymis

Question 16

The inside of the epididymis is lined with what

Answer 16

Stereocilia

Question 17

What is the role of the accessory glands

Answer 17

1 activate sperm motility
2 provide nutrients
3 produce protecting buffers

Question 18

The head of the sperm is surrounded by what and what does this do

Answer 18

Acrosomal cap

It protect the nucleus and keeps the DNA inside the head.

Question 19

What is capacitation

Answer 19

Process by which spermatozoa become mature

Question 20

Emission

Answer 20

The nourishing and transporting of sperm by the reproductive tract from the testes to outside of the body - known as emission

Question 21

Contraction of smooth muscle inside the reproductive text is controlled by ANS OR PNS

Answer 21

ANS involuntary

Question 22

What does the seminal gland do

Answer 22

Secretes a fluid that contains a lot of fructose. Gives sperm energy causes beating of the flagella

Question 23

The sperm is stored in this area for 2 wks

Answer 23

Epididymis

Question 24

The duct of the seminal gland + the tube of ductus deferens meet to form what

Answer 24

The Ejaculatory duct

Question 25

What gives the semen its milky white feature

Answer 25

Prostate

Question 26

The bulbo urethra gland secretes what

Answer 26

A thick, sticky mucus. It is not added to the semen. It is what occurs before ejaculation

Question 27

What is the function of the secreted contents of the bulbo urethral gland

Answer 27

It is what occurs before ejaculation and it neutralizes the urethra and also lubricates the tip of the penis

Question 28

2 tissues that compose the penis tissue

Answer 28

1 corpus spongiosum | 2 corpus cavernosum

Question 29

What structure helps to stiffen or stabilize the penis

Answer 29

Ischiocavernosus

Question 30

What covers the bulb of the penis

Answer 30

Bulbospongiosus

Question 31

At the level where the ductus deferens pierces into the bladder is what part of the male reproductive system?

Answer 31

Seminal gland/ seminal vesicles

Question 32

The ejaculatory duct passes its contents into what structure?

Answer 32

Prostatic urethra

Question 33

What is the longest part of the male urethra

Answer 33

Spongy urethra

Question 34

Contraction of which muscle helps push semen through the urethra?

Answer 34

Bulbospongiosus muscle

Question 35

What supplies and drains blood to the male external genitalia?

Answer 35

Pudendal artery and vein

Question 36

Which structure supplies innervation to the external genitalia?

Answer 36

Pudendal nerve

Question 37

What are the erectile tissue of the penis?

Answer 37

Corpus spongiosum | Corpus cavernosum

Question 38

The corpus cavernosum is located anterior/ posterior or lateral in the penis?

Answer 38

Anterior

Question 39

The glans of the penis that is an extension of the corpus spongiosum or corpus cavernosum?

Answer 39

Extension of the corpus spongiosum

Question 40

What forms a ridge at the bottom of the penis?

Answer 40

Corpus spongiosum

Question 41

What are referred to as the legs of the penis and what is the name of the tissue?

Answer 41

The crus of the penis. It is made up of corpus cavernosum

Question 42

Erectile tissue forms ___________ channels separated by what type of tissue/tissues?

Answer 42

Vascular channels separated by elastic connective tissue and smooth muscle.

Question 43

What helps to maintain an erection by preventing blood from leaving the penis

Answer 43

Contraction of the Ischiocavernosus & Bulbospongiosus, which compress veins in the penis and prevent return of blood to the heart

Question 44

What is the scrotal septum

Answer 44

This structure divides the space in the scrotum into 2 sides

Question 45

What does the cremaster muscle do

Answer 45

Pulls the testis closer to the body

Question 46

What does the dartos muscle do

Answer 46

Wrinkles the surface of the scrotum

Question 47

What happens to the dartos muscle when it is hot?

Answer 47

It relaxes the smooth muscle : and now there will be more surface area for heat release

Question 48

What happens to the darts muscle when it is cold?

Answer 48

It contracts : wrinkles : less surface area for heat release

Question 49

The seminiferous tubules connect to what structure? What connects it to this structure?

Answer 49

Connected to the Rete testis. | The straight tubules connect them.

Question 50

The Rete testis is connected to what structure? What connects it to this structure?

Answer 50

Connected to the epididymis. | The efferent ductules connect them.

Question 51

What is the purpose of the Stereocilia inside the epididymis.

Answer 51

To increase surface area for greater absorption.

Question 52

Spermatogenesis produces how many gametes.

Answer 52

4 haploid gametes.

Question 53

What are the parts of the spermatozoa?

Answer 53

Head - containing the nucleus Neck - containing mitochondrial spirals and micro tubules Tail - contains flagellum

Question 54

The spermatozoa is the only cell in the human body with a flagellum. T/F

Answer 54

True

Question 55

He contents of what structure gives semen its milky white feature? What is the purpose of this milky white content?

Answer 55

The prostate The purpose is to act as a buffer that is added to combat the acidity in the male urethra and female vagina

Question 56

The spongy urethra is a tube that passes through the corpus cavernosum. T/F

Answer 56

True