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In today’s Biology class, We will be learning about Male and Female Reproductive structures. We hope you enjoy the class!
MALE AND FEMALE REPRODUCTIVE STRUCTURES
- Structures and Functions of the Reproductive System (Male and Female)
- Structure of the Gametes (Sperm and Ovum)
- Differences Between Male and Female Reproductive Organs
Most multicellular animals and plants undergo a complex form of sexual reproduction in which especially differentiated male and female reproductive cells (gametes) unite to form a single cell, known as a zygote, which later undergoes successive divisions to form a new organism. The process takes place with the help of the system known as the reproductive system. This system can be divided into
- male reproductive system and
- female reproductive system.
STRUCTURES AND FUNCTIONS OF MALE REPRODUCTIVE SYSTEM IN MAMMALS
|Oval shaped, found in scrotal sacs in pairs outside the body to enjoy cooler temperature.
|– production of sperms
– production of male sex hormones (testosterone)
– development of secondary sexual character in male
|Found within the testis, composed of a mass of sperm-producing tubes.
|Site of sperm production
|Found outside the testis as a long coiled tube.
|Collect and stores sperm temporary until maturity.
| Vas deferens
|A narrow tube which leads from the epididymis to the seminal vesicles.
|Conduction of sperm from the epididymis to seminal vesicle.
|A small sac at the back of vas deferens.
|– Stores sperm till ejaculation.
– Secretes part of the seminal fluid.
NOTE; Seminal fluid contains fructose which provides energy for the sperms.
|Connected to the urethra through many tubules
|Secretion of seminal fluid.
|Located very close to the prostate gland.
|Secretes a part of the seminal fluid which raises the acidic ph of the female reproductive medium which otherwise can kill the sperm.
|A narrow tube which passes through the penis.
|Aids the passage of sperm into the vagina of the female animal and also the passage of urine out of the body hence it is called the urinogenital opening.
|Contains tissues which make it turgid (erect when filled) with blood
|Helps to introduce sperm into the vagina of the female animal and also the passage of urine.
- Outline five structural parts of the male reproductive system and their functions
- Why is the urethra urinogenital opening?
STRUCTURES AND FUNCTIONS OF THE FEMALE REPRODUCTIVE SYSTEM
|Found on each side of the vertebra column (two in every woman)
|– Produce eggs (ova)
– produces female sex hormone (oestrogen and progesterone)
– Development of secondary sexual characters in the female.
|A long narrow tube funnel opening which receives eggs released by the ovary and it is a linkage between ovary and uterus.
|-Fertilization takes place in the oviduct
– Allows the passage of an egg from the ovary to the uterus
|A muscular organ which is a cavity for development of the zygote into a baby.
|– Site of embryo development from implantation till birth
|A muscular tube leading from the uterus to the outside of the body.
|– It receives sperms from the penis during intercourse
-Allows the passage of foetus during birth
|A ring of muscles with a tiny opening that closes the lower end of the uterus where it joins the vagina.
|-Controls the opening and closing of the vagina especially during birth.
|Refers to all external parts of the female reproductive organ
|– Allows the passage of the penis into the vagina during intercourse.
– permits passage of foetus during birth.
|A small sensitive organ which corresponds to the male penis. It is erectile and becomes stiff when stimulated due to blood inflow
|– Helps to stimulate female during sexual intercourse(experience orgasm)
- State five structural differences between the male reproductive system and the female reproductive system.
- Describe the organs in the female reproductive system.
We have come to the end of this class. We do hope you enjoyed the class?
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In our next class, we will be learning about Sexual Reproduction. We are very much eager to meet you there.
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