User:FigginsRD/sandbox

WIKIPEDIA CRITIQUE GROUP WORK: 17 FEB. 2017

Group Work Plan: Riley will act as group question "asker"

1. Suggest sources for issues of copy paste/other forms of plagiarism; Speak with Ian via talk concerning the issue
   1. Sources for:
      1. Endostyle definition (first sentence) (https://www.stri.si.edu/sites/taxonomy_training/future_courses/Biological_glossary_Tunicates.html)
      2. Final sentence- First source is used as inappropriately and taken out of context when referring to three branches of chordates, though they are not ALL branches of chordates
      3. Other organisms sharing the same trait (as stated in article: lampreys,urochordates and cephalochordates)
2. Figure from textbook
3. Extrapolate information:
   1. "Branches of chordata" comment along with plagiarism in last sentence
   2. Hyperlinks to other branches of chordata with shared endostyle trait
   3. Add on thyroid in vertebrates/more recently diverged organ

DRAFTED QUESTION/COMMENT:

WikiArticle Critique:

Questions:

• What does in “the three branches of chordata” refer to? Is it the three listed previously or other taxa? • No mention of synapomorphies? • Where did it arise specifically? The last phrase of the article is weak and not written clearly. Specifically, what is meant by internal feeding if the endostyle is already an internal structure? • Does the endostyle collect food only with the mucus it produces? •

Comments: • All links work and are appropriately placed • Good use of vocabulary (homologous, taxa) and specific organism names • Good extension of endostyle to thyroid is more complex organism • Sources are cited and legitimate

Suggestions: Relate the endostyle back to the emergence of phylum chordata and relate to synapomorphies of all related chordate (possible list all five and provide links to other pages?)

Insert diagram, perhaps from the textbook since it is a reliable source!

Revise some of the wording, including the "three branches of chordates", for specificity

FigginsRD (talk) 00:18, 17 February 2017 (UTC)FigginsRD

DISSECTION PROJECT IDEAS:

1. Rat:
   1. Possible Articles to Edit;
      1. Cecum
      2. Aortic Arch
      3. Salivary Gland
   2. Reasons to Edit: I have a rodent collection at home (two guinea pigs and a gerbil) and would like to be able to dissect an animal I am familiar with to learn its internal anatomy to a greater extent.
2. Iguana:
   1. Possible Articles to Edit:
      1. Parietal Eye
      2. Dewlap
      3. Spines
   2. Reasons to Edit: I do not have much experience handling reptiles and do not know much of anything concerning their anatomy- It would be interesting to locate the five synapomorphies of chordates on an animal with which I have little familiarity.
3. Garter Snake:
   1. Possible Articles to Edit:
      1. Cloaca
      2. Duvernoy's Gland
      3. Vomeronasal Organ
         1. This is not listed on the page, but seems to be a common structure present in reptiles (Good addition to the page)
   2. Reasons to Edit: As with the iguana, I have little experience with reptiles, though I am more familiar with Garter snakes due to my time outdoors.

Week 6 Work: Drafting Aortic Arch (Rat) Edits

Note: This edit should be added to the main Rat Wiki page, then linked to the general aortic arch page where appropriate (i.e., when emphasizing that the murine anatomical structure of the aorta is comparable to the human aorta, providing valuable insight concerning human cardiovascular conditions).

The aorta and the aortic arch are composed of three layers: The tunica intima, which surrounds the lumen and is composed of simple squamal epithelial cells; the tunica media, composed of smooth cell muscles and elastic fibers; and, the tunica adventitia, composed of loose collagen fibers. Innervated by barometric nerve terminals, the aortic arch is responsible for sensing changes in the dilation of the vascular walls, inducing changes in heart rate to compensate for changes in blood pressure. The aortic arch of the rat follows the classic model of branching, containing: 1) the brachiocephalic cephalic artery (branching into the right common carotid artery and right subclavian artery), supplying blood to the right side of the neck, the right shoulder and the right arm; 2) the left common carotid artery, supplying blood to the left side of the neck; and, 3) the left subclavian artery, supplying blood to the left shoulder and arm.

The aortic arches of the rat are among the most commonly studied in murine models due to their anatomical similarities to the human cardiovascular system. Both rat and human aortic arches exhibit subsequent branching of brachiocephalic trunk, left common cartoid artery and left subclavian artery, as well as geometrically similar, non-planar curvature in the aortic branches. Aortic arches studied in Vitamin A deficient rats exhibit abnormalities similar to those of humans, including altered pulmonary arteries and double or absent aortic arches. Despite exisiting anatomical analogy in the inthrathoracic position of the heart itself, the murine model of the heart and its structures remains a valuable tool for studies of human cardiovascular conditions.