Term
| purpose of the Embryology lab |
|
Definition
| This laboratory exercise is designed to demonstrate the various stages of embryonic development in incubated chicken eggs. |
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
| some developmental features for day 1 |
|
Definition
-development of area pellucida and area opaca on germinal disc
-primitive streak defines the longitudinal axis of embryo
-somites are well developed
-central nervous system appears as a neural groove
-foregut forms
-blood islands appear in the area opaca
-primordial sex cells appear |
|
|
Term
| some developmental features for day 2 |
|
Definition
-embryo begins to turn onto left side
-heart formation
-heart beat begins at 30 hours
-primary division of brain
-formation of eyes
-formation of ear pits
-formation of tail bud
-amnion begin to develop and fills with amniotic fluid to protect embryo from mechanical shock
-blood vessels appear in the yolk sac |
|
|
Term
| some developmental features for day 3 |
|
Definition
-limb buds form
-allantois begins to form
-embryonic respiratory system forms
-esophagus starts to form |
|
|
Term
| some developmental features for day 4 |
|
Definition
-allantois develops outside the body of the embryo
-tongue formation is visible |
|
|
Term
| some developmental features for day 5 |
|
Definition
-proventriculus and gizzard form
-facial features become visible
-reproductive organs differentiate into male or female |
|
|
Term
| some developmental features for day 6 |
|
Definition
-main subdivisions of legs and wings appear
-voluntary movement of embryo is visible
-duodenal loop forms
-beak and egg tooth begin to form |
|
|
Term
| some developmental features for day 7 |
|
Definition
-allantois and chorion fuse and lay against egg shell, forming vascular connection
-ceca start development
-indications of digits appear
-abdomen more prominent due to development of viscera |
|
|
Term
| some developmental features for day 8 |
|
Definition
-feather germs appear in feather tracts
-ceca begin to form
-eyes are prominent |
|
|
Term
| some developmental features for day 9 |
|
Definition
-contour of body appears birdlike
-allantois nearly surrounds embryo, amnion and yolk |
|
|
Term
| some developmental features for day 10 |
|
Definition
| -forelimb appears wing-like and digits of feet are completely separated |
|
|
Term
| some developmental features for day 13 |
|
Definition
-down feathers cover body
-scales and toe nails appear |
|
|
Term
| some developmental features for day 14 |
|
Definition
| -embryo position is parallel to long axis |
|
|
Term
| some developmental features for day 15 |
|
Definition
| -small intestines enter abdominal cavity |
|
|
Term
| some developmental features for day 16 |
|
Definition
-scales and nails begin to keratinize
-albumen is nearly depleted and yolk becomes increasingly important as source of nutriment |
|
|
Term
| some developmental features for day 17 |
|
Definition
-amniotic fluid decreasing
-embryo begins preparation for hatching
-embryo is positioned with beak under right wing |
|
|
Term
| some developmental features for day 19 |
|
Definition
-yolk sac starts to enter body cavity through umbilicus
-beak pierces air sac and lungs begin to function |
|
|
Term
| some developmental features for day 20 |
|
Definition
-pulmonary respiration starts
-allantoic circulation and respiration cease
-allantois begins to regress |
|
|
Term
| some developmental features for day 21 |
|
Definition
Normal Hatching
-forepart of body is shifted toward large end of egg
-head is under right wing
-legs are shifted toward head
-upper mandible with pointed pipping cap is oriented towards air cell
-pipping of egg shell occurs in a counter clockwise fashion |
|
|
Term
| purpose of the Embryology lab |
|
Definition
| This laboratory exercise is designed to demonstrate the various stages of embryonic development in incubated chicken eggs. |
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
| some developmental features for day 1 |
|
Definition
-development of area pellucida and area opaca on germinal disc
-primitive streak defines the longitudinal axis of embryo
-somites are well developed
-central nervous system appears as a neural groove
-foregut forms
-blood islands appear in the area opaca
-primordial sex cells appear |
|
|
Term
| some developmental features for day 2 |
|
Definition
-embryo begins to turn onto left side
-heart formation
-heart beat begins at 30 hours
-primary division of brain
-formation of eyes
-formation of ear pits
-formation of tail bud
-amnion begin to develop and fills with amniotic fluid to protect embryo from mechanical shock
-blood vessels appear in the yolk sac |
|
|
Term
| some developmental features for day 3 |
|
Definition
-limb buds form
-allantois begins to form
-embryonic respiratory system forms
-esophagus starts to form |
|
|
Term
| some developmental features for day 4 |
|
Definition
-allantois develops outside the body of the embryo
-tongue formation is visible |
|
|
Term
| some developmental features for day 5 |
|
Definition
-proventriculus and gizzard form
-facial features become visible
-reproductive organs differentiate into male or female |
|
|
Term
| some developmental features for day 6 |
|
Definition
-main subdivisions of legs and wings appear
-voluntary movement of embryo is visible
-duodenal loop forms
-beak and egg tooth begin to form |
|
|
Term
| some developmental features for day 7 |
|
Definition
-allantois and chorion fuse and lay against egg shell, forming vascular connection
-ceca start development
-indications of digits appear
-abdomen more prominent due to development of viscera |
|
|
Term
| some developmental features for day 8 |
|
Definition
-feather germs appear in feather tracts
-ceca begin to form
-eyes are prominent |
|
|
Term
| some developmental features for day 9 |
|
Definition
-contour of body appears birdlike
-allantois nearly surrounds embryo, amnion and yolk |
|
|
Term
| some developmental features for day 10 |
|
Definition
| -forelimb appears wing-like and digits of feet are completely separated |
|
|
Term
| some developmental features for day 13 |
|
Definition
-down feathers cover body
-scales and toe nails appear |
|
|
Term
| some developmental features for day 14 |
|
Definition
| -embryo position is parallel to long axis |
|
|
Term
| some developmental features for day 15 |
|
Definition
| -small intestines enter abdominal cavity |
|
|
Term
| some developmental features for day 16 |
|
Definition
-scales and nails begin to keratinize
-albumen is nearly depleted and yolk becomes increasingly important as source of nutriment |
|
|
Term
| some developmental features for day 17 |
|
Definition
-amniotic fluid decreasing
-embryo begins preparation for hatching
-embryo is positioned with beak under right wing |
|
|
Term
| some developmental features for day 19 |
|
Definition
-yolk sac starts to enter body cavity through umbilicus
-beak pierces air sac and lungs begin to function |
|
|
Term
| some developmental features for day 20 |
|
Definition
-pulmonary respiration starts
-allantoic circulation and respiration cease
-allantois begins to regress |
|
|
Term
| some developmental features for day 21 |
|
Definition
Normal Hatching
-forepart of body is shifted toward large end of egg
-head is under right wing
-legs are shifted toward head
-upper mandible with pointed pipping cap is oriented towards air cell
-pipping of egg shell occurs in a counter clockwise fashion |
|
|
Term
| purpose of the Embryology lab |
|
Definition
| This laboratory exercise is designed to demonstrate the various stages of embryonic development in incubated chicken eggs. |
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
which stage of embryonic development is this?
[image] |
|
Definition
|
|
Term
| some developmental features for day 1 |
|
Definition
-development of area pellucida and area opaca on germinal disc
-primitive streak defines the longitudinal axis of embryo
-somites are well developed
-central nervous system appears as a neural groove
-foregut forms
-blood islands appear in the area opaca
-primordial sex cells appear |
|
|
Term
| some developmental features for day 2 |
|
Definition
-embryo begins to turn onto left side
-heart formation
-heart beat begins at 30 hours
-primary division of brain
-formation of eyes
-formation of ear pits
-formation of tail bud
-amnion begin to develop and fills with amniotic fluid to protect embryo from mechanical shock
-blood vessels appear in the yolk sac |
|
|
Term
| some developmental features for day 3 |
|
Definition
-limb buds form
-allantois begins to form
-embryonic respiratory system forms
-esophagus starts to form |
|
|
Term
| some developmental features for day 4 |
|
Definition
-allantois develops outside the body of the embryo
-tongue formation is visible |
|
|
Term
| some developmental features for day 5 |
|
Definition
-proventriculus and gizzard form
-facial features become visible
-reproductive organs differentiate into male or female |
|
|
Term
| some developmental features for day 6 |
|
Definition
-main subdivisions of legs and wings appear
-voluntary movement of embryo is visible
-duodenal loop forms
-beak and egg tooth begin to form |
|
|
Term
| some developmental features for day 7 |
|
Definition
-allantois and chorion fuse and lay against egg shell, forming vascular connection
-ceca start development
-indications of digits appear
-abdomen more prominent due to development of viscera |
|
|
Term
| some developmental features for day 8 |
|
Definition
-feather germs appear in feather tracts
-ceca begin to form
-eyes are prominent |
|
|
Term
| some developmental features for day 9 |
|
Definition
-contour of body appears birdlike
-allantois nearly surrounds embryo, amnion and yolk |
|
|
Term
| some developmental features for day 10 |
|
Definition
| -forelimb appears wing-like and digits of feet are completely separated |
|
|
Term
| some developmental features for day 13 |
|
Definition
-down feathers cover body
-scales and toe nails appear |
|
|
Term
| some developmental features for day 14 |
|
Definition
| -embryo position is parallel to long axis |
|
|
Term
| some developmental features for day 15 |
|
Definition
| -small intestines enter abdominal cavity |
|
|
Term
| some developmental features for day 16 |
|
Definition
-scales and nails begin to keratinize
-albumen is nearly depleted and yolk becomes increasingly important as source of nutriment |
|
|
Term
| some developmental features for day 17 |
|
Definition
-amniotic fluid decreasing
-embryo begins preparation for hatching
-embryo is positioned with beak under right wing |
|
|
Term
| some developmental features for day 19 |
|
Definition
-yolk sac starts to enter body cavity through umbilicus
-beak pierces air sac and lungs begin to function |
|
|
Term
| some developmental features for day 20 |
|
Definition
-pulmonary respiration starts
-allantoic circulation and respiration cease
-allantois begins to regress |
|
|
Term
| some developmental features for day 21 |
|
Definition
Normal Hatching
-forepart of body is shifted toward large end of egg
-head is under right wing
-legs are shifted toward head
-upper mandible with pointed pipping cap is oriented towards air cell
-pipping of egg shell occurs in a counter clockwise fashion |
|
|
