Animal Development Labeling Activity: Structures and Stages Guide

Its is very important to carefully read and follow these instructions before using this power point slide labeling activity: The structures/stages to focus on are already labeled. Type the name of the structure that best corresponds to the numbered feature on the table to the right of the image. Use the word bank that is also posted on Moodle with this lab activity. Some of the words can be used more than once as a feature on different slides associated with this activity. Be sure to save this file often while working on the slides. You must submit this activity as a .ppt, .pptx or .pdf file by the due date and time specified on the submission link.

Label Number Structure/stage name 1 Unfertilized Egg 2 Fertilized Egg 3 (stage) Morula 4 (stage) Blastula 5 (cavity) Blastocoel 6 (opening) Blastopore 7 (cavity) Archenteron Early Starfish Development What is the developmental fate of the opening labeled No. 6? Answer: The blastopore will develop into the anus. What is the developmental stage associated with this No 6 labeled opening? Answer: Gastrulation What is the developmental fate of the cavity labeled No. 7? Answer: The archenteron will develop into the digestive tract.

24 Hour Chick Label Number Structure name 1 Neural Fold 2 Neural Tube 3 Somites 4 Primitive Streak

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Label Number Structure name 1 Brain 2 Heart 3 Vitelline Vessels 4 Notochord 5 Optic Cup 48 Hour Chick The anterior region of this embryo has developed a bending just beyond the head section that is called: Answer: Cranial Flexure

Label Number Structure name 1 Amnion 2 Forelimb Bud 3 Hindlimb Bud 4 Auditory Vesicle 5 Forebrain 6 Midbrain 7 Hindbrain 72 Hour Chick During this stage of development, the embryo has developed a distinct C shape. Torsion of the (a) , (b) and (c) contribute to the formation of this distinct shape: Answer: a. Cranial flexure b. Cervical flexure c. Tail flexure

Label Number Structure name 1 Forebrain 2 Midbrain 3 Hindbrain 4 Auditory Vesicle 5 Heart 6 Forelimb Bud 7 Hindlimb Bud 8 Tail Bud 9 Allantois 96 Hour Chick

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AnimalDevelopmentAactivityF22(1)

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