Embryology
Help!
|
|
||||
|---|---|---|---|---|---|
| CC: A fertile egg has a ________? | Blastoderm
🗑
|
||||
| CC: An inifertile egg has a _________? | Blastodisc
🗑
|
||||
| DO: How many sequences of genomes are there for chickens | more than 20,000
🗑
|
||||
| DO: Which comes first the blastoderm or the blastodisc | the blastodisc
🗑
|
||||
| DO: When does the alloantois form | at 4-6 days of incubation
🗑
|
||||
| DO: What is the chorioalloantoic membrane | the membrane after the alloantois that is attached to the inside of the shell and crisscrossed with blood vessels
🗑
|
||||
| DO: What are the 3 functions of the chorioalloantoic membrane | exchange oxygen and carbon dioxide between the embryo and the outside of the shell, collect solid waste, and remove calcium from the shell so the embryo can use it to make bones
🗑
|
||||
| DO: What process makes the shell thinner | the use of calcium from the shell to make bones
🗑
|
||||
| MM:In about how long does an ovum develop to the size of a yolk? | a week
🗑
|
||||
| CC: How long does the blood vessels coming from the embryo join with those coming from the area opaca? | 48 hours
🗑
|
||||
| EA: How many stages are in the development of the embryo? | 45 stages
🗑
|
||||
| EA: What is gastrulation? | When the cells that make a triangular wedge move inward.
🗑
|
||||
| CC: how long until the embryo takes to use up all the yolk? | 19
🗑
|
||||
| RL; At fertilization how many features does the cell have? | One
🗑
|
||||
| RL: What do the cells form at stage 4 | Primitive
🗑
|
||||
| RL: Do surrounding cells influence what not committed cells become? | Yes
🗑
|
||||
| RL: Once a cell has been committed can it be influenced by other tissue surrounding it? | No
🗑
|
||||
| CC: Which membrane will eventually extend around and lie next to the shell? | The Chorion
🗑
|
||||
| RL: How many vertebrae are in a newly hatched chick? | More than 40
🗑
|
||||
| MM:How does the ovum develop to the size of a yolk? | by collecting lipid particles that were made in the hen's liver from the blood.
🗑
|
||||
| MM: When the yolk is the correct size , it is released from the ____ into the hen's ________? | Ovary , abdomen
🗑
|
||||
| MM: What catches the yolk which then starts its journey through the oviduct to add the albumen and shell? | infundibulum
🗑
|
||||
| MM: What contains the genetic information that is supplied by the female ? | the blastodisc
🗑
|
||||
| MM: The yolk particles contain _____ as the major energy source? | fat
🗑
|
||||
| MM: The embryo's head should be tucked under ____ and located toward the _______?? | the right wing , round end of the egg
🗑
|
||||
| RL: Between what days do the Somites move to create leg buds? | 6-8
🗑
|
||||
| RL: What will a Dermatome somite form? | Skin
🗑
|
||||
| RL: What will a Myotome somite form? | Muscle
🗑
|
||||
| RL: What will a Sclerotome somite form? | Skeletal Structures
🗑
|
||||
| MM: What is it called when the embryo is not oriented correctly? | Malposition
🗑
|
||||
| MM:What is malformation? | it is when the embryo is not formed properly
🗑
|
||||
| MM: In commercial poultry, the combination of malpositions and malformations decreases the overall hatchability by about how much? | 5%
🗑
|
||||
| CC: Which membrane appears last? | Allantois
🗑
|
||||
| CC:Which membrane appears as a sac outside of the embrane? | allantois
🗑
|
||||
| CC: Which two membranes fuse together to form the chorioallantoic membrane? | The Chorion and The Allantois
🗑
|
||||
| CC: What membrane is first visible on the inside of the shell? | chorioallantoic
🗑
|
||||
| CC: Where is the Chorioallantoic? | Next to the shell
🗑
|
||||
| CC: What membrane is first visible on the inside of the shell? | chorioallantoic
🗑
|
||||
| CC: What does the chorioallantoic membrane do? | Exchange oxygen and CO2 between the outside of the shell, resivoir to collect solid wastes, remove calcium
🗑
|
||||
| CC: When does cell division begin? | Fertilization
🗑
|
||||
| CC: What part of the blastoderm does the embryo develop? | Area Pellucida
🗑
|
||||
| CC: Cell division starts from the _____ and moves to the ______. | Posterior, Anterior
🗑
|
||||
| CC: What is Gastrulation? | Where the cells on the edge begin to move towards the center
🗑
|
||||
| DO: How can toxic compounds enter the egg | through the hens feed or the environment around the egg
🗑
|
||||
| DO: What could happen if toxic compounds enter the egg | the developing embryo can die or be malformed
🗑
|
||||
| DO: What helps chicks get out of the egg | an egg tooth that they lose soon after hatching
🗑
|
||||
| CC: Cells form in what 3 layers? | Ectoderm, Mesoderm, Endoderm
🗑
|
||||
| CC: The Ectoderm is located where? | Outside
🗑
|
||||
| CC: The Mesoderm is located where? | Middle
🗑
|
||||
| CC: The Endoderm is located where? | Inner
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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
Normal Size Small Size show me how
Created by:
michelle.knox