Human Sexual Anatomy
and Physiology
“Anatomy” = Structure
(how it’s made)
Human Sexual Anatomy and Physiology
“Anatomy” = Structure
(how it’s made)
“Physiology”=Function
(how it works)
Male Physiology
Three functions of the male
anatomy:
1. Create sex cell (sperm)
Male Physiology
Three functions of the male anatomy:
1. Create sex cell (sperm)
2. Deliver the sperm into the female
Male Physiology
Three functions of the male anatomy:
1. Create sex cell (sperm)
2. Deliver the sperm into the female
3. Create male hormones (i.e. testosterone)
Puberty
A time period in each person’s life when his/her body
experiences the preparatory changes necessary for
reproduction.
The average age of onset varies:
Males = 11 to 15 years of age
Females = 9 to 14 years of age
Male Physiology
* Primary change at puberty
sperm production (spermatogenesis)
Male Physiology
* Primary change at puberty
sperm production (spermatogenesis)
**Secondary changes at puberty
deepened voice,
Male Physiology
* Primary change at puberty
sperm production (spermatogenesis)
**Secondary changes at puberty
deepened voice, increased hair,
Male Physiology
* Primary change at puberty
sperm production (spermatogenesis)
**Secondary changes at puberty
deepened voice, increased hair, enlarged penis,
Male Physiology
* Primary change at puberty
sperm production (spermatogenesis)
**Secondary changes at puberty
deepened voice, increased hair, enlarged penis,
increased perspiration,
Male Physiology
* Primary change at puberty
sperm production (spermatogenesis)
**Secondary changes at puberty
deepened voice, increased hair, enlarged penis,
increased perspiration, tissue of the scrotum thins,
Male Physiology
* Primary change at puberty
sperm production (spermatogenesis)
**Secondary changes at puberty
deepened voice, increased hair, enlarged penis,
increased perspiration, tissue of the scrotum thins,
increased muscle mass
* Directly related to reproduction
** Not necessary for reproduction
Sperm
nucleus
Head piece
(acrosome)
mitochondria
tail piece
(flagellum)
Only cell with mobility among humans
Smallest cell of either gender
1/85,000 the size of a mature ovum.
Approx. 250,000,000 are released in ejaculation
Approx. 50,000 produced each minute.
Carries either an X or a Y chromosome:
x=female y=male
Haploid (23 chromosomes)
Frontal View of Male
Male Reproductive System
Male ends at 2:35 on the video
and is followed by female
reproductive system.
Number the following anatomical parts of the male
reproductive system according to the pathway that the sperm
will follow when they are produced until they leave the body.
___seminiferous tubules
___urethra
___epididymis
___prostate gland
___penis
___cowper’s gland (bulbourethral gland)
___seminal vesicles
___vas deferens
Now……..
Let’s
turn our
attention to the female….
Female Physiology
1. Release of the female sex cell (egg, oocyte, ovule, ovum)
(In her ovaries, a female already has the most eggs she will ever
have when she is born)
Female Physiology
1. Release of the female sex cell (egg, oocyte, ovule, ovum)
(In her ovaries, a female already has all of the eggs she will ever
need when she is born)
2. Provide an environment for conception, then fetal development.
(fallopian tube and endometrial lining of the uterus)
Female Physiology
1. Release of the female sex cell (egg, oocyte, ovule, ovum)
(In her ovaries, a female already has all of the eggs she will ever
need when she is born)
2. Provide an environment for conception, then fetal
development.
(fallopian tube and endometrial lining of the uterus)
3. Provide nourishment for the unborn child
(umbilical cord and placenta) and the newborn child (breast
milk)
Female Physiology
1. Release of the female sex cell (egg, oocyte, ovule, ovum)
(In her ovaries, a female already has all of the eggs she will ever
need when she is born)
2. Provide an environment for conception, then fetal
development. (fallopian tube and endometrial lining of the uterus)
3. Provide nourishment for the unborn child
(umbilical cord and placenta) and the newborn child (breast milk)
4. Produce hormones (estrogen, progesterone, FSH, LH…)
Female Physiology
1. Release of the female sex cell (egg, oocyte, ovule, ovum)
(In her ovaries, a female already has all of the eggs she will ever
need when she is born)
2. Provide an environment for conception, then fetal
development. (fallopian tube and endometrial lining of the uterus)
3. Provide nourishment for the unborn child
(umbilical cord and placenta) and the newborn child (breast milk)
4. Produce hormones (estrogen, progesterone, FSH, LH…)
5. Provide a passageway to enable conception and childbirth.
(vagina, cervix)
Female Physiology
*Primary changes at puberty
- an egg begins to be released from one of her ovaries
every 28 days.
Female Physiology
*Primary changes at puberty
- an egg begins to be released from one of her ovaries
every 28 days.
- a lining (endometrium) develops on the wall of the uterus.
Female Physiology
*Primary changes at puberty
- an egg begins to be released from one of her ovaries
every 28 days.
- a lining (endometrium) develops on the wall of the uterus.
**Secondary changes at puberty
enlarged breasts, increased fat mass, increase in body hair,
deepened voice, widened pelvis (hips).
* Directly related to reproduction
** Not necessary for reproduction
Male/Female Anatomy and Physiology
Female begins at 2:35
Warm-up:
Number the following anatomical parts of the female
reproductive system according to the pathway that eggs
will follow when they are produced until they leave the body.
___Uterus
___Ovary
___Fallopian Tube
___Cervix
___Fimbriae
___Vagina
___Endometrium
Menstrual Cycle
Menstrual Cycle
Menstrual Cycle