Male Reproductive

Question 1

Functions of epididymis

Answer 1

Monitor and adjust fluid in seminiferous tubules

Store and protect spermatozoa

Facilitates functional maturation of spermatozoa
THEY REMAIN IMMOBILE

Question 2

Spermatozoa will become functionally mature when

Answer 2

Mixed with secretion of seminal vesicles (THEN THEY BECOME MOBILE)

Exposed to conditions in the female reproductive tract (BECOME CAPABLE OF FERTILIZATION)

Question 3

Where does the ductus deferents begin

Answer 3

At the epididymus

Question 4

Peristaltic contractions propel spermatozoa along the ___

Answer 4

Ductus deferens

Question 5

Functions of duct deferens

Answer 5

Transport spermatozoa

Store spermatozoa (FOR MONTHS)

Question 6

The junction with the duct of the seminal vesicles marks the start of the _____

Answer 6

Ejaculatory duct

Question 7

Ejaculatory duct

Answer 7

Short passageway that penetrates the muscular wall of the prostate gland and empties into the urethra

Question 8

Spermatic cord

Answer 8

Bundle of fibrous connective tissue containing the ductus deferens, blood and lymphatic vessels, and testicular nerve

Question 9

Why do human testes reside in the scrotum

Answer 9

Because of its cooler environment

CANT MAKE SPERM AT OUR NORMAL BODY TEMPERATURE
ONLY AT 35 DEGREES C

Question 10

What are the 2 mechanisms to regulate temperature of testes

Answer 10

Cremaster muscles

Dartos muscle

Question 11

Cremaster muscle

Answer 11

Strips of internal abdominal oblique muscle

Enmesh the spermatic cord

Contracts and draws testes upward toward body in cold temperature

Relaxes suspending testes further from body in warm temperature

Question 12

Dartos muscle

Answer 12

Subcutaneous layer of smooth muscle

Contracts when cold, wrinkles scrotum, and holds testes against warm body

Reduces surface area of scrotum and heat loss

Question 13

Seminal vesicles

Answer 13

Contributes about 60% of total volume of semen

Contain fructose, prostaglandins, fibrinogen

Question 14

Fructose is metabolized by _____ and used as a source of _____

Answer 14

Fructose is metabolized by spermatozoa and used as a source of energy

Question 15

Prostaglandins stimulates

Answer 15

Smooth muscle contractions along the reproductive tracts

HELPS SPERMATOZOA TO MOVE

Question 16

Fibrinogen forms a temporary clot within the vagina to prevent

Answer 16

Damage to spermatozoa by the acidic environment of vagina

Question 17

Spermatozoa becomes mobile after

Answer 17

Mixing with seminal vesicles secretion

Question 18

Prostate gland

Answer 18

Secretes an alkaline prostatic fluid that accounts for about 20-30% of semen volume

NEUTRALIZES ACIDIC ENVIRONMENT IN VAGINAL TRACT

Contains seminal plasmin (prevents UTI)

Question 19

Bulbourethral glands

Answer 19

Secrete alkaline mucus with lubricating properties

Question 20

What are the contents of semen

Answer 20

2-5 mL fluid that contains:

20-100 million spermatozoa per mL

60% seminal fluid

20-30% prostatic fluid

Enzymes ( PROTEASE, SEMINAL PLASMIN, FIBRINOLYSIS)

Question 21

Protease

Answer 21

Helps dissolve mucous secretion in vagina

Question 22

Seminal plasmin

Answer 22

Antibiotic enzyme that kills bacteria

Question 23

Fibrinolysis

Answer 23

Liquifies the clotted semen after the vaginal environment is neutralized

Question 24

Male external genitalia consists of

Answer 24

Scrotum

Penis

Question 25

What are the 3 masses of erectile tissue in the penis

Answer 25

2 corpora cavernous beneath fascia 1 corpus spongiosum surrounding urethra

Question 26

3 regions of urethra

Answer 26

Prostatic Membranous Penile

Question 27

Functions of the reproductive system

Answer 27

Production of gametes (sex/germ cells) Store gametes Nourish gametes Transport gametes

Question 28

Functions of female reproductive system

Answer 28

Provide nutrient and support to developing embryo, fetus, and infant

Question 29

Fertilization

Answer 29

Fusion of male and female gametes to form a zygote (fertilized egg) NUCULI ARE GOING TO FORM TOGETHER

Question 30

What are the organs of the reproductive system

Answer 30

Gonads (testes, and ovaries) Ducts Accessory glands and organs External genitalia

Question 31

Function of Gonads

Answer 31

Produce sperm/egg

Question 32

Testes produce ____ And secrete ____

Answer 32

Testes produce spermatozoa And secrete testosterone

Question 33

How many oocytes do ovaries release a month

Answer 33

1

Question 34

What hormones do ovaries secrete

Answer 34

Estrogen Progesterone

Question 35

What is the function of ducts

Answer 35

A passageway that opens to the exterior and transport gamete

Question 36

What does sperm do when it is along the ducts

Answer 36

Sperm mixes with secretion of accessory glands and then convert to semen

Question 37

Oocyte travels along

Answer 37

Uterine tube (duct) (Fallopian tube) to uterus

Question 38

Accessory glands and organs

Answer 38

Secrete fluid Seminal vehicle secrete seminal fluid

Question 39

Secondary sex characteristics that develop at puberty in both sexes

Answer 39

Pubic and auxiliary hair and their associated scent glands, and the pitch of voice

Question 40

Male secondary’s sex characteristics

Answer 40

Facial hair Coarse and visible hair on the torso and limbs, relatively muscular physique

Question 41

Female secondary sex characteristics

Answer 41

Distribution of body fat, breaker enlargement, and relatively hairless appearance of the skin

Question 42

Tunica vaginalis

Answer 42

Covers each testis

Question 43

Tunica albuginea

Answer 43

White coat on testes

Question 44

Septum created from tunica albuginea divides testes into

Answer 44

250 to 300 wedge shaped lobules

Question 45

Seminiferous tubules

Answer 45

Ducts where sperm are produced

Question 46

Seminiferous tubules contain

Answer 46

Spermatozoon is (stem/germ cell)

Question 47

Spermatogenesis

Answer 47

Production of sperm cells Spermatocytes go through meiosis I and meiosis II and make 4 spermatic

Question 48

functions of Sustentacular (serotonin) cells

Answer 48

1. Protect germ cells and stimulate development | 2. Provide nutrients, waste removal, growth factors etc to germ cells

Question 49

Interstitial (leadings) cells

Answer 49

Produce testosterone

Question 50

Sperm passageway

Answer 50

‘SEVEN UP’ Seminiferous tubules Epididymis Vas/ ductus deferents (and seminal vesicular) Ejaculatory duct N/A Urethra Penis

Question 51

What are the accessory organs of male reproductive system

Answer 51

Seminal vesicles Prostate gland Bulbourethral glands Scrotal sac encloses testes

Question 52

Spermiogenesis

Answer 52

Spermatic differentiate into spermatozoa (physical maturation of sperm) ACTUAL MOBILE SPERM FORMATION Changes that transform spermatids into spermatozoa Discarding excess cytoplasm and growing tails

Question 53

Head of spermatooon

Answer 53

Nucleus and densely packed chromosomes

Question 54

Middle piece of spermatozoon

Answer 54

Mitochondria that produce the ATP needed to move the tail

Question 55

Tail of spermatozoon

Answer 55

The only cell with flagellum in the human body It enables the spermatozoa to swim

Question 56

Blood testis barrier (BTB)

Answer 56

Formed by tight junctions between sustentacular cells Separates sperm from immune system Prevents antibodies from getting to the germ cells Germ cells would be attacked by the immune system