Template:Hamburger Hamilton stages table: Difference between revisions
From Embryology
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{| class="prettytable" | {| class="prettytable" | ||
|-bgcolor="DDCEF2" | |-bgcolor="DDCEF2" | ||
! width=150px| <center>Hamburger Hamilton Stages</center> | |||
! width=100px| <center>Age</center> | |||
! <center>Identification of Stages</center> | |||
| <center>Image</center> | |||
|-bgcolor="FAF5FF" | |-bgcolor="FAF5FF" | ||
| colspan="3" | <center>'''Before Laying'''</center> | | colspan="3" | <center>'''Before Laying'''</center> | ||
| | |||
|- | |- | ||
| <center>Early cleavage</center> | | <center>Early cleavage</center> | ||
| 3.5-4.5 hr | | 3.5-4.5 hr | ||
| Shell membrane of egg formed in isthmus of oviduct | | Shell membrane of egg formed in isthmus of oviduct | ||
| | |||
|- | |- | ||
| <center>During cleavage</center> | | <center>During cleavage</center> | ||
| | | | ||
| Germ wall formed from marginal periblast | | Germ wall formed from marginal periblast | ||
| | |||
|- | |- | ||
| <center>Late cleavage</center> | | <center>Late cleavage</center> | ||
| 4.5-24.0 hr | | 4.5-24.0 hr | ||
| Shell of egg formed in uterus | | Shell of egg formed in uterus | ||
| | |||
|-bgcolor="FAF5FF" | |-bgcolor="FAF5FF" | ||
| colspan="3" | <center>'''After Laying'''</center> | | colspan="3" | <center>'''After Laying'''</center> | ||
| | |||
|- | |- | ||
| <center>1</center> | | <center>1</center> | ||
| | | | ||
| Preprimitive streak (embryonic shield) | | Preprimitive streak (embryonic shield) | ||
| | |||
|-bgcolor="FAF5FF" | |-bgcolor="FAF5FF" | ||
| <center>2</center> | | <center>2</center> | ||
Line 120: | Line 120: | ||
| 50-55 hr | | 50-55 hr | ||
| 24-27 somites; visceral arch III, cleft 3 | | 24-27 somites; visceral arch III, cleft 3 | ||
| [[File:HHstage15.jpg|50px]] | |||
|-bgcolor="FAF5FF" | |-bgcolor="FAF5FF" | ||
| <center>16</center> | | <center>16</center> | ||
| 51-56 hr | | 51-56 hr | ||
| 26-28 somites; wing bud; posterior amniotic fold | | 26-28 somites; wing bud; posterior amniotic fold | ||
| [[File:HHstage16.jpg|50px]] | |||
|- | |- | ||
| <center>17</center> | | <center>17</center> | ||
| 52-64 hr | | 52-64 hr | ||
| 29-32 somites; leg bud; epiphysis | | 29-32 somites; leg bud; epiphysis | ||
| [[File:HHstage17.jpg|50px]] | |||
|-bgcolor="FAF5FF" | |-bgcolor="FAF5FF" | ||
| <center>18</center> | | <center>18</center> | ||
| 3 da | | 3 da | ||
| 30-36 somites extending beyond level of leg bud; allantois | | 30-36 somites extending beyond level of leg bud; allantois | ||
| [[File:HHstage18.jpg|50px]] | |||
|- | |- | ||
| <center>19</center> | | <center>19</center> |