conception chapter 4: pregnancy. conception a cell is the smallest unit of life that is able to...

Conception

Chapter 4: Pregnancy

ConceptionA cell is the smallest unit of life that is able

to reproduce itself

Life begins with the joining of two separate cells-one from the male and one from the female

Germ CellsThe male germ cell or sex cell is called the

sperm

Germ CellsThe female germ cell or sex cell is called

the ovum (egg).

conceptionThe joining of these two germ cells is called

conception

ZygoteAt conception, ovum and sperm combine to

form a single cell called a zygote

White Board Review!

The male sex cell is called……….?

White Board Review!

The joining of the germ cells is called……….?

White Board Review!

The female sex cell is called……….?

White Board Review!

The cell formed after conception is referred to as the ……….?

Female Reproductive System

How do these cells meet?Ovum are produced and stored in the woman’s

ovary

Around the middle of each menstrual cycle, one ovum is released during ovulation

Female Reproductive SystemWhen the egg is released, it travels towards

the fallopian tubes

These are two hollow tubes that extend from the right and left sides of the uterus

Female Reproductive SystemThe uterus is the organ in which the baby

develops and is protected until birth

One end of each fallopian tube is connected to the uterus

Female Reproductive SysteOnce inside the fallopian tube, the ovum

moves very slowly.

Here, the ovum is ready and available to be joined by a sperm

ConceptionSemen, a liquid which contains over 300

million sperm, inters the body during intercourse.

These sperm begin a journey to the ovum that lasts only minutes

Sperm TravelMany sperm do not survive, only 300-500

reach the fallopian tube

Sperm and Egg MeetThe sperm approach the ovum and try and

break through the surface

Sperm and Egg MeetOnly one sperm successfully enters. Once

accepted, no other sperm can enter the ovum.

ImplantationConception has occurred, and the zygote

forms

Short Story // Comic StripWrite a short story or a comic strip

depicting the process of conception. You must use all vocabulary learned from today’s lesson.

Stories and Comics must include colorful pictures to illustrate the process.