Male reproductive system Flashcards

1
Q

what is a male sex cell called

A
  • a spermatozoon, or a sex cell

- this is a male gamete

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

where do we find the genetic material in the sperm

A
  • in the head
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what is the tail of a sperm

A
  • a flagellum, helps make the sperm cell mobile
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

how many sperm cells are released during ejaculation

A
  • 300 million
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what are fraternal twins (lol)

A
  • twins resulting from the fertilization of separate ova by separate sperm cells are called fraternal twins
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what are identical twins

A
  • twins resulting from the fertilization of a single egg by a single sperm are called identical twins
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what hormone is responsible for the bodily characteristics of the male

A
  • testosterone
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what are essential organs of the male reproductive system

A
  • gonads (testes), which produce sex cells (sperm of spermatozoa)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what are accessory organs of the male reproductive system

A
  • ducts: passageways that carry sperm from testes to exterior
  • sex glands: produce protective and nutrient solutions of sperm
  • external genitals
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

where do sperm mature

A
  • in the epididymis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

structure and location of the testes

A
  • located in the scrotum - lower temperature
  • covered by tunica albuginea, which divides testis into lobules containing seminiferous tubules
  • interstitial cells produce testosterone
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what produces testosterone

A
  • interstitial cells
  • testosterone “masculinizes” and promotes development of male accessory organs
  • promotes and maintains development of male accessory organs
  • stimulates protein anabolism and development of muscle strength
  • flagellum: tail
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what are reproductive ducts

A
  • ducts through which sperm pass after exiting testes until the exit from the body
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what is the epididymis

A
  • single, coiled tube about 6 meters in length, lies along the top and behind the testis in the scrotum
  • sperm mature and develop the capacity for motility as they pass through the epididymis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what is the vas (ductus) deferens

A
  • receives sperm from the epididymis and transports them from the scrotal sac through the abdominal cavity
  • passes through the inguinal cavity
  • joins duct of seminal vesicle to form the ejaculatory ducts
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what is semen

A
  • accessory of supportive sex glands
  • mixture of sperm and secretions of accessory sex glands; averages 3-5 mL per ejaculation with each mL containing about 100 million sperm/mL
17
Q

what is accessory sex glands help make up seminal fluid and how much of it do they make up

A
  • seminal vesicles (60%) - pouchlike glands, secretion is yellowish, thick and rich in fructose to provide energy needed by sperm for motility
  • prostate gland (30%) - shaped like a donut and located below bladder, urethra passes through the gland, activates sperm and is needed for ongoing sperm motility
  • bulbourethral (cowper’s) glands (5%) - resemble peas in size and shape, secrete mucus-like fluid constituting less than 5% of seminal fluid volume
18
Q

external genitals of the male reproductive system

A
  • penis and scrotum called genitalia
    penis has 3 columns of erectile tissue; 2 dorsal columns and 1 ventra column surrounding urethra
  • glans penis (head of penis), covered by foreskin (prepuce)
  • surgical removal or foreskin is called circumcision
19
Q

chlamydia:

A
  • bacterial invasion of the urethra and reproductive tract. burning sensation on urination and white or yellow discharge
20
Q

gonorrhea:

A
  • inflammation of the genital tract mucosa, caused by infection with gonococci bacteria. purulent discharge
21
Q

herpes genitalis:

A
  • infection of skin and genital mucosa, caused by herpes simplex virus type II, fluid filled blisters when flare up (type I is oral)
22
Q

human papilloma virus (HPV):

A
  • infection of skin and mucous membranes in the anogenital region, some types can cause genital warts, others can cause cervical cancer
23
Q

syphillis:

A
  • chronic STI caused by a spirochete (bacteria). chancre on external genitals appears first, after chancre disappears, secondary stage beings 2-6 months after. tertiary stage includes damage to brain, heart and spine