lect - 9 genital system

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Anatomy of Genital System
BMS 231:
2015/2016
DR SOBIA IKRAM
DR AQEELA BANO
DR SADIA FARHAN
Table of Contents
1. Objectives for this lesson
2. Function of the Reproductive system and the
organs involved in both Male and Female
genital system.
3. Gross Anatomy and functions of the Organs
involved in male genital system.
4. Gross Anatomy and functions of the Organs
involved in Female genital system.
Objectives
When you finish this lesson, you should be able to
• Describe the Functions of the Male and Female
Reproductive system
• Identify the Gross Anatomy and Explain the Functions
of the organs involved in the Male Genital system.
• Identify the Gross Anatomy and Explain the Functions
of the organs involved in the Female Genital system.
Functions of genital system
To ensure survival of the species
To produce egg and sperm cells
To transport and sustain these cells
Production of hormones
Hormones permits the secondary sex characteristics, such as
breast development in women and beard growth in men.
GROSS ANATOMY OF GENITAL SYSTEM
Male & Female genital system
Composed of :
1. Reproductive organs called gonads that produce gametes
(reproductive cells) and hormones
2. Ducts that transport gametes
3. Accessory glands and organs that secrete fluids
Male genital system
Functions
– To produce, maintain and transport sperm (the
male reproductive cells) and protective fluid
(semen)
– To produce and secrete male sex hormones
responsible for maintaining the male
reproductive system
Male genital organs
Consists of
1. A pair of testes
2. A network of excretory ducts
•
•
•
3.
4.
5.
6.
Epididymis
Ductus deferens
Ejaculatory ducts
Seminal vesicles
Prostate
Urethra
Penis
Male Genital system
Testes / testicles
(Gonads)
Produce sperm
(Spermatogenesis)
Sperm production begins
at puberty and continues
throughout the life of a
male
Male Genital system
Testes / testicles (Gonads)
Produce testosterone
• Hair patterns and voice
changes
• Development of the male
accessory organs (prostate,
seminal vesicles etc.)
• Stimulates the effect of
protein building in the body
that is responsible for the
greater muscle development
and strength of the male
Male Genital system
• Duct System
– Epididymis
• Sperm mature in
epididymis
– Ductus Deferens
• Transports mature
sperm to the urethra
– Ejaculatory ducts
• empty into the
urethra
Male Genital system
Seminal vesicles
– Attached to vas deferens
– Produce a sugar rich
fluid (fructose) that
provides energy to
sperm
Male Genital system
Prostate Gland
Makes seminal
fluid .
Male Genital system
Urethra
Tube that carries urine from the bladder to outside of the body
Also carries semen out of the body
Female genital system
Functions
1. Produces the female egg cells
2. Transports the eggs to the site of fertilization
3. The fertilization of an egg by a sperm, occurs in the
fallopian tubes
Female genital system
Functions
1. After fertilization, provides a place for a baby to develop
2. If fertilization does not take place, the system is designed
to menstruate
3. Produces female sex hormones that maintain the
reproductive cycle.
Female genital system
Consists of
1. Uterus
(corpus and cervix)
1. vagina
2. Ovaries
3. Fallopian tubes
Female genital system
Coronal section
Sagittal section
Female genital system
Uterus
– Hollow, pear-shaped organ that
is the home to a developing
fetus
• Divided into two parts:
– the cervix, the lower
part that opens into
the vagina
– Main body of the
uterus, called the
corpus.
– The corpus can easily
expand to hold a
developing baby.
– A channel through
the cervix allows
sperm to enter and
menstrual blood to
exit
Female genital system
Vagina
– Canal that joins the
cervix (the lower part of
uterus) to the outside of
the body
– Also is known as the
birth canal.
Female genital system
Ovaries
– Oval-shaped glands
that are located on
either side of the
uterus
– Produce eggs and
hormones.
Female genital system
Fallopian Tubes
– Narrow tubes that are
attached to the upper part
of the uterus and serve as
tunnels for the egg cell to
travel from the ovaries to
the uterus
– Fertilization of an egg by a
sperm, normally occurs in
the fallopian tubes
– The fertilized egg then
moves to the uterus, where
it implants into the lining
of the uterine wall
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