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
2
Q
where do we find the genetic material in the sperm
A
- in the head
3
Q
what is the tail of a sperm
A
- a flagellum, helps make the sperm cell mobile
4
Q
how many sperm cells are released during ejaculation
A
- 300 million
5
Q
what are fraternal twins (lol)
A
- twins resulting from the fertilization of separate ova by separate sperm cells are called fraternal twins
6
Q
what are identical twins
A
- twins resulting from the fertilization of a single egg by a single sperm are called identical twins
7
Q
what hormone is responsible for the bodily characteristics of the male
A
- testosterone
8
Q
what are essential organs of the male reproductive system
A
- gonads (testes), which produce sex cells (sperm of spermatozoa)
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
10
Q
where do sperm mature
A
- in the epididymis
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
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
13
Q
what are reproductive ducts
A
- ducts through which sperm pass after exiting testes until the exit from the body
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
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