Male Repro

Question 1

What is the male repro syst composed of?

Answer 1

Spermatic cord, testis, epididymis, accessory Sex glands, penis

Question 2

Products of male repro syst

Answer 2

Spermatozoa, testosterone, inhibit, estrogen, proteins

Question 3

Spermatozoa are produced where?

Answer 3

Testes

Question 4

The rete testis converge what?

Answer 4

Seminiferous tubules into efferent ducts

Question 5

What are the functions of the epididymis?(3)

Answer 5

Storage, maturation, transport unused spermatids

Question 6

Why are the smooth muscle contractions in the tail of the epididymis stopped?.

Answer 6

Because spermatozoa mature and are stored there until ejaculation -

Question 7

Are spermatids in the tail of the epidiclymis capable of fertilizations?

Answer 7

Yes

Question 8

Spermatozoa travel through what in an ejaculation?

Answer 8

Vas deferens into pelvic urethra

Question 9

What suspends the testis in the scrotum?

Answer 9

Spermatic cord

Question 10

What is the spermatic cord composed of?

Answer 10

Vasculature, lymphatics. Nerves, vas deferens, cremaster muscle,pampiniform plexus and testicular artery

Question 11

The pampiniform plexus is composed of a network of what?

Answer 11

Veins

Question 12

What is the method of exchange of heat in the spermatic cord?

Answer 12

Counter current

Question 13

Testosterone is exchanged from the blood in veins back into testis in what?

Answer 13

Pampiniform plexus

Question 14

The temperature gradient that is achieved by the pampiniform plexus is?

Answer 14

4-6° C

Question 15

How does the cremaster control temp. Of testis?

Answer 15

By raising and lowering them

Question 16

Does the cremaster have pumping action?

Answer 16

Yes

Question 17

What is a method of regulation of temp of rams that is unique to them?

Answer 17

Respiration rate

Question 18

Can testes be retripenitoreal?

Answer 18

Yes

Question 19

What part of the male repro syst uses sweat glands as a method of thermoregulation ?

Answer 19

Scrotum

Question 20

Where is the tunica dartos muscle?

Answer 20

Under scrotal skin

Question 21

The tunica dartos is under local or systemic control?

Answer 21

Local (testosterone)

Question 22

The testis are composed of:

Answer 22

Tunica albuginea, seminiferous tubules, mediastinum and cells

Question 23

What forms lobules in the testis?

Answer 23

Tunica albuginea

Question 24

Sertoli cells are inside or outside the seminiferous tubules?

Answer 24

Inside

Question 25

Sertoli cells are under control of what hormone?

Answer 25

FSH

Question 26

What cells are found on the outside of seminiferous tubules and produce LH?

Answer 26

Leydig cells

Question 27

The blood testis barrier work based on what cells?

Answer 27

Peritubular cells

Question 28

Why is the blood testis barrier important?

Answer 28

Because once meiosis occurs, spermatids (DNA inside each) are considered foreign to the body

Question 29

The tight junctions between Sertoli cells prevent what?

Answer 29

Macromolecules or phagocytes to enter adluminal compartment

Question 30

The epididymis is under the control of what hormone?

Answer 30

Testosterone

Question 31

Does ejaculation occur in the distal or proximal epididymis?

Answer 31

Distal

Question 32

What is the 3rd function of the epididymis?

Answer 32

Flush out unejaculated spermatids

Question 33

A high concentration of spermatozoa would be found where?

Answer 33

In the epididymis

Question 34

Where can you find a low concentration of spermatids dissolved by rete fluid?

Answer 34

In the efferent ducts

Question 35

What are extragonadal reserves?

Answer 35

Sperm cells that can be ejaculated

Question 36

We can increase distal/ EGR reserves by doing what?

Answer 36

False mounting, observation

Question 37

What hormone is released to increase muscle contractions for EGR s?

Answer 37

Oxytocin

Question 38

Does overuse increase or decrease distal reserves?

Answer 38

Decrease

Question 39

If the cytoplasmic droplet is present in an ejaculate sample it's considered abnormal. What could be a reason for this?

Answer 39

Overuse

Question 40

What is the buffer, nutrient, lubrication, and non-cellular part of an ejaculate?

Answer 40

Seminal plasma

Question 41

How many glands/parts are involved in the production of seminal plasma? Which are they?

Answer 41

5:epididymis, ampulla, vesicular, prostate, bulbourethral

Question 42

What gland provides the gel-like fraction of seminal plasma?

Answer 42

Bulbourethral

Question 43

What does the prostate gland provide?

Answer 43

Clean environment of urethra pre-ejaculation

Question 44

What species only has a prostate gland as an accessory gland?

Answer 44

Dog

Question 45

What gland provides the milky portion of seminal plasma?

Answer 45

Vesicular

Question 46

What is the copulatory organ in males?

Answer 46

Penis

Question 47

The 3 parts of the penis are:

Answer 47

Base, shaft, glans penis

Question 48

What part of the penis can engorge blood during excitation or erection?

Answer 48

Shaft

Question 49

What type of penis is always contracted in the body cavity while not in use?

Answer 49

Fibroelastic

Question 50

Vascular penises rely on what ?

Answer 50

Blood engorgement

Question 51

The corpus cavernosum allows what?

Answer 51

Blood influx

Question 52

What surrounds the penile urethra?

Answer 52

Corpus spongisum