oracabessa high school · web viewduring sexual intercourse the male ejaculates and semen leaves...
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Integrated Science
Grades 71 and 72 Shifts One &Two
Instructions: Read the information below and write as notes in your notebooks. Record and complete the activities that follow in your notebook as well. Send answers and questions to YOUR teacher.
Miss Campbell [email protected]
Mrs. Smith-Morgan [email protected]
Mr. Morgan [email protected]
Lesson Topic: Sexual Maturity in HumansObjectives
Students will:
• Relate the structure of the male and female sex cells (gametes) to their function
• Relate the structure of the main parts of male and female reproductive systems to their function
• Explain the process of sexual reproduction in humans
Gametes are the sex cells used in the reproduction process. In males it is the sperm cell and in
females it is the egg cell.
The Sperm Cell
The Egg Cell
The Male Reproductive System
The male reproductive system is designed to transfer sperm to the female system.
Parts of the male reproductive system.•Testis- produce sperm, males have two
•Scrotum- sac that holds the testes, this hangs outside of the body
•Epididymis- stores sperm
•Seminal vesicle- produces semen. Semen is a fluid which helps sperm to swim
•Prostate gland- produces semen•Urethra- carries urine and sperm
•Penis- gets rid of urine and places sperm into the vagina of a female during sexual intercourse.•Sperm duct- carries sperm from epididymis.
The Female Reproductive System
Parts of the female reproductive system
Ovaries- pair of internal organs, one on each side of the lower half of the body, which produces ova.
Uterus (womb) - protects and nourishes the fertilised ovum, as it develops into a baby. Fallopian tube (oviduct)- has a funnel shaped opening which catches the ovum, as it is
released from the ovary Cervix- ring of muscles that closes the lower part of the womb Vagina- the birth canal, which is about 10cm long that connects the uterus to the outside
world. Functions of the vagina
1. Acts as a passage for the monthly flow of blood out of the female body (menstruation).
2. Receives sperm deposited by the penis.3. Serves as a pathway for the birth of a baby.
Process of Sexual Reproduction in Humans
During sexual intercourse the male ejaculates and semen leaves the penis and enters the vagina. As the sperm cells swim up the vaginal canal to the uterus, one sperm cell will fertilize the egg cell. This results in a zygote being formed that will become a baby.
Worksheet
1. The diagrams below show the human female and male reproductive organs.
a. Complete the following table by writing the name and reproductive function of the
labelled structures on the diagrams above.
Name of Structure Function of structure
A
B
C
b. Structures A and B are similar in function. Explain how they are similar
________________________________________________________________________
________________________________________________________________________
_______________________________________________________________
c. On the diagram, draw arrows to show the movement of sperm through the male
reproductive system from where it made to where it leaves the body.
d. What is fertilization? ___________________________________________________
____________________________________________________________________
e. After the sperm fertilizes the egg what is the name of the cell formed?
___________________________________________________________
2. The diagram below is a human sperm.
a. Name the structures labelled A, B, C, D.
A __________________________________
B __________________________________
C __________________________________
D __________________________________
3. Give the function of the structures labelled A and B
A ___________________________________________________________________
B ___________________________________________________________________