Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

Username is available taken
show password

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

HHP 1150 Unit 1

Embryology: intro and pre-embryonic period

cell differentiation transformation into specific cell types
cell development process by which cells become fully functional
embryology development events that occur prior to birth
Overview of Prenatal stages First 38 weeks of human development -Pre-embryonic period (zygote period) (weeks 0-2) -Embryonic Period (weeks 3-8) -Fetal period (weeks9 to birth)
Give an overview of the pre-embryonic period -first two weeks after fertilization, cleavage (weeks 0-2) Week 1: zygote->blastocyst Day5-9: implantation&tropho and epiblast->chronion, yolk sac, amnion
Give an overview of the embryonic period -gastrulation and organogenesis from blastocyst (weeks 3-8) begins with establishment of three primary germ layers and ends with the main organ systems developed
Give an overview of the fetal period -begins at week 9 and ends at birth -characterized by rapid growth of tissues and organs and maturation (most organs have been made, now just growing fast)
define cleavage the series of mitotic divisions that a zygote undergoes once it (zygote) is formed (egg becomes zygote from fertilization)
define blastocyst and morula Day 4: when a zygote reproduced into 16 cells, the morula is the 16-celled structure Day 5: once the morul enters the uterine cavity, it becomes a blastocyst with a fluid filled blastocyst cavity in its center
define zygote fertilized egg. Day 1
two components of blastocyst (week 1) trophoblast: outer ring of cells that eventually develop into the chorion embryoblast: pluripotent cells packed inside on side of the blastocyst and will form the embryo
define pluripotent can differentiate into any cell type in the human body (have not specialized yet)
define implantation (Day5-9) within a week of fertilization, blastocyst enters uterus and invades superficial layer of endometrium ( lining of uterus) . By DAY 9, blastocyst has completely burrowed into uterine wall
Define bilaminar germinal (or embryonic disc). When do these develop? What are their roles? Develop DAY 8. embryoblast cells differentiate into two distinct types: hypoblast and epiblast. Together, they make the disc H: layer of small cuboidal cells facing blastocyst cavity (superficial) E: layer of columnar cells deep to the hypoblast (deep_
define extraembryonic membranes. How are they formed. What are their roles? membranes that assist embryo development. PRODUCED by germinal disc (embryoblasts) and trophoblasts, but are not considered part of embryo. They typically perform roles in nutrition, gas exchange, and waste removal.
Define Yolk Sac extraembryonic membrane. serves as a site for early blood cell and vessel formation. attached to HYPOBLAST
Define Amnion extraembryonic membrane. thin layer of cells that form above (and is derived from) EPIBLAST. Between the amnion and epiblast is a fluid filled amniotic cavity
Define Chorion outermost membrane responsible for formation of the placenta
Define placenta. How is it divided? highly vascularized organ serving as an interface between the embryo (eventually fetus) and mother. Embryonic portion of the placenta is the chorion and maternal portion is from the endometrium
What are the main functions of the placenta? -exchange nutrients, waste. gas, bt embryo and mother 0transmission of maternal antibodies -production of estrogen and progesterone to maintain uterine lining
Created by: kellyyrosse
Popular Anatomy sets




Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
restart all cards