Summary
Summary of Human Development from Prenatal to Death
- Course
- Institution
- Book
Pink-themed notes in detail of human development over the lifespan including infographics.
[Show more]
Connected book
Book Title:
Author(s):
- Edition:
- ISBN:
- Edition:
More summaries for
-
Psych Chapter 1: Evolution of Psychology SUMMARY (from: PSYCHOLOGY: THEMES AND VARIATIONS)
-
Psych Ch. 2: Research Methods SUMMARY (from: PSYCHOLOGY: THEMES AND VARIATIONS)
-
Psych Ch. 3: The Biological Bases of Behavior SUMMARY (from: PSYCHOLOGY: THEMES AND VARIATIONS)
Seller
Follow
leighmcdonald
Content preview
Human DevelopmentPrenatal Development
Conception to parturition (birth)
Stages:
I. Germinal
II. Embryonic
III. Foetal
Course:
I. - First two weeks of gestation
- Conception -> implantation on uterine wall
- Implantation: blastocyst comes into connection with uterine
wall and by day twelve buried into uterine tissue
- Blastocyst wall cells & uterine coating cells merge to construct
placenta (permits oxygen, nutrients, and other elements to travel
between mother and baby's blood without letting it mix)
, - Umbilical cord is cells that connect embryo and placenta
- Alternative cells form yolk sac (manufactures blood cells until
embryo's blood producing cells configured)
- Amnion is a fluid-filled pouch that provide for movement
- Cells that form the anatomy are in position
II. - Implantation achieved from week two and lasts for six weeks (end
of week eight)
- Embryo's cells shaping basics for all organs
- Third week after impregnation, neurons shape neural tube from
which brain and spinal cord form, as well as a primordial heart and
the precursor of kidneys, and three pouches (digestive system)
- Fourth week: end of neural tube proliferates and forms brain, spots
(that will form the eyes) emerge and heart beats. Spinal cord and
ribs grow. Face obtains form and endocrine system grows.
- Fifth week, embryo is five mm. Arms and legs growing quickly.
Eyes contain corneas and lenses. Lungs enlarge.
- Sixth week, brain begins to create electrical activity. Genitalia
enlarge.
- Seventh week, embryo moves instinctively. Observable skeleton
and fully developed limbs. Eyelids close and ears entirely shaped.
- Eighth week, liver and spleen work and the embryo can create and
filter own blood cells. Heart well developed, links between brain and
body created. Digestive and urinary system working.
- Organogenesis complete
III. - two months to birth
- Rapid bodily growth, muscles and bones begin to form
- Skeletal structures harden
- Organs grow and gradually begin to function
, - Final three months: brain cells multiply fast, layer of fat deposited
under skin, respiratory system matures and central nervous system
gains increasing control of functions
- Between week twenty-three-twenty-five, foetus reaches
threshold of viability where they can survive at the event of
premature birth which can lead to neurodevelopmental impairments
and sensory deficits
Environmental Factors
Genetic
○ Gene abnormalities (defective genes)
○ Chromosomal abnormalities (segment of chromosomal DNA irregular)
Maternal Nutrition
○ Vital role in growth of neural tube and inadequate quantities lead to
illnesses. Number calories critical. Creates nutrient rich environment for
growth. Increases chance of positive outcome.
Maternal Stress & Emotion
○ Increased stress: increased stillbirths, impaired immune system,
vulnerability to infectious diseases, slow motor development and below
average cognitive development.
Maternal Drug Use
○ Foetal alcohol syndrome (FAS): collection of congenital (inborn)
problems associated with excess alcohol use during pregnancy ->
microcephaly, heart defects, irritability, hyperactivity, delayed motor
development and impaired cognitive development
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller leighmcdonald. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.71. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
53068 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now