The Miracle of Life The Human Birth Process Experiential Learning - - PowerPoint PPT Presentation

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The Miracle of Life

The Human Birth Process

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One Sperm + One egg = YOU!

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Two Weeks

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• 2 weeks - Fertilization:

the sperm and egg join in the fallopian tube to form a unique human being.

• Forty-six chromosomes

combine, which pre- determine all of a person's physical characteristics.

• The MIRACLE BEGINS

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Fetal Development Stages

Illustration:Wikimedia.org/wikipedia/commons/3/35/Male_anatomy.png

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• Zygote Stage – Lasts 2 weeks

– Sperm unites with ovum (egg)

• Embryo Stage – Lasts 6 weeks

– All major body systems begin to develop:

• Central nervous system, brain, blood

vessels, stomach, heart

• Eyes, lungs arms legs, hands, feet
• Fetus Stage – Lasts 7 months

– Fetus grows and matures – Rapid growth of body, head, arms, legs – Organs develop for breathing, digestions, blood circulation – Nerves and muscles develop – Heart pumps blood through veins and arteries

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2nd Month – Embryo (1st Trimester)

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• Photo taken after surgery for

an ectopic pregnancy – shows development of baby at only 6 weeks after conception

• Major organs have begun to

form

• Hair follicles and nipples

form, knees and elbows visible

• Eyes have retina and lens
• Major muscle system is

developed

• End of 2nd month (8 weeks)

begins the fetal stage of development

Photograph by University of Minnesota Medical Photographer, Robert Wolfe. 1972

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Question:

What does the embryo attach to so it can start to grow ?

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Uterus

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• Pear-shaped, muscular-walled organ where the fetus

develops for NINE months

• Sit back and relax cause we are going to be here for a

while!

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3rd Month – Fetus (1st Trimester)

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• Our nostrils, mouth, lips, teeth buds, and

eyelids form

• Our fingers and toes are almost complete
• Our heartbeat can be heard with a

stethoscope

• All organs are present though immature
• Red blood cells are produced in the liver

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4th Month – Fetus (2nd Trimester)

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• Our skin is slightly less

transparent

• Fine hair covers our entire body
• We can suck our thumb,

swallow, hiccup, grasp with our hands, kick, or even somersault!

• Our facial features become

clearer

• Our brain is fully developed
• Our bones are becoming harder
• We can feel pain

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5th Month – Fetus (2nd Trimester)

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• Doctors can tell if we’re a

boy or a girl

• Hair, eyelashes, eyebrows

appear

• Teeth continue to develop
• We have fingernails and

fingerprints

• Our organs are maturing
• “Quickening” begins (mom

feels us moving)

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6th Month – Fetus (2nd Trimester)

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• Our eyes open and close
• The muscles in our arms

and legs strengthen

• Breath movement begins
• We have hand and startle

reflex

• Footprints and

fingerprints are forming

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7th Month – Fetus (3rd Trimester)

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• We are covered with

downy hair called lanugo

• Fat deposits begin to

appear beneath wrinkly skin

• Our nervous,

circulatory, and other systems mature

• A protective waxy

substance (Vernix) covers our skin

• Periods of activities are

followed by periods of rest and quiet

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8th Month – Fetus (3rd Trimester)

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• We can hear sounds

and may be startled by sudden noise

• We can hear and

recognize our mom’s voice

• We usually moves

into a head-down position

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9th Month – Fetus (3rd Trimester)

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• Increased fat our under

skin makes us look less wrinkled

• Our movement

decreases with less room to move

• We gain disease-

fighting antibodies from

• ur mom’s blood
• We descends lower into

pelvis—getting ready for birth

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Question:

What is connecting us to

• ur mothers?

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Umbilical Cord

• Lifeline from mother to

baby that carries food,

• xygen, and water
• This is what must be cut

during delivery-when people say ‘cut the cord’ this is what they mean!

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Question:

What does the umbilical cord attach to so it can feed the growing embryo?

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Placenta

• Thick-walled circular
• rgan, rich in blood supply

connected to the umbilical cord

• The placenta must also be
• delivered. This is called

the AFTERBIRTH: – Tissues, fluids, and the placenta that passes

• ur after the birth of the

baby

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What is the ‘bag of water’?

• Amniotic Sac

– Covering around the fetus – Also called the bag of waters – When this breaks the mother knows it’s almost time to deliver

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You have to make a journey!

• First the cervix must dilate to 10 cm
• Cervix:

– The neck of the uterus which has to stretch open during labor

• Out through the vagina

– Birth canal or female sex organ

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Stages of Labor

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You’re Here!

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If things don’t go as planned:

• Miscarriage:

– Baby dies inside the mother’s uterus and is passed out early

• Premature

– Baby is born early

• Breech Birth

– Baby is born feet first

• Caesarian Birth:

– Baby is taken through the mother’s abdomen through surgery

• Still Born:

– Baby dies during labor and is born dead

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Teen Pregnancy

– Are teen mothers at higher or lower risks than adult women? – Why or why not?

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Final Thought:

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If you are in contact with your birth mother, give her a HUGE hug and say THANK-YOU for bringing you into to world!!