Cellular differentiation

1. Where does most of the adult neurogenesis occur (brain structure)? For human adults, neurogenesis would most naturally occur most in the hippocampus region of the brain (Curlik & Shors, 2013, p. 506). 2. This structure most associated with what types of activities? The hippocampus structure is most associated with how one's mental processes respond and adjust to a physical stimuli through learning and behavior (Curlik & Shors, 2013, p. 506). 3. Although most of the new cells die by…

Duplicate Copy Human cloning is a rather controversial subject that has passionate people on both sides of the debate. It’s a technology that some feel questions their ethical standings and hits a little too close to home. On the other hand, human cloning could also provide medical answers to some incurable diseases, birth defects, and genetic disorders that currently have no treatments. Necessary sacrifices must be made for advancements in science to produce results. Many people claim that…

Upon development, the nervous system wires itself completely – an impressive feat considering the millions of connections and neurons in the body. However perhaps even more impressive is the ability of the nervous system to restore neuronal connections after injury. This is particularly advanced in frogs, fish and invertebrates as once an axon is cut in the central nervous system, the regeneration allows full functional recovery whereas in the mammalian central nervous system full recovery is…

Thierry Work leads a team of wildlife disease researchers at the U.S. Geological Survey who study sea turtles. Recently, they turned their attention to the ChHV5 virus. The virus infects endangered green sea turtles, who then develop tumors. Eventually the infection weakens the turtle’s immune systems and the turtles die. Studying this virus initially proved difficult. ChHV5 proved intractable to traditional methods of growing viruses to study in the lab. Work’s team noticed…

Stem cells are truly the stem of our existence saying how these microscopic cells have an astronomical job. Ever since we were all embryos, we’ve had stem cells, specifically embryonic and adult stem cells. Many factors tie into the world of stem cells such as what and where they came from, the research done on stem cells, and the legislation along with my personal opinion on the research. There are two characteristics that separate stem cells from other cells, one is that they are unspecialized…

Picture this, your best friend is rushed to the hospital due to him/her being involve in a car accident. It is later found out that your friend in in dire need of a new lung in order to survive. Frantically, you're willing to donate one of yours as a means to save your friend life. Only, there is one problem; your lung is not compatible with your friends. There is one potential way to save your friends life, through the use of stem cells. We are on the verge of a major scientific and medical…

Discussion Dugesia regeneration is happening and the response rate to stimuli can be observed. Planarians have the ability to fully regenerate demonstrating the fascinating study of stem cells and tissue regenerations. The regeneration of the planarian may require the planarian to reshape its form by finding the right proportion to acquire the right shape and size of its body to form a functional, bilaterally symmetrical anatomy. The regeneration period can vary with different species, some…

Tissue Repair in Minor Wounds The skin is the biggest protector of our bodies and its organs. It is made up of two primary layers, the epidermis and the dermis. The epidermis is the outer layer of the skin and is a membranous epithelial tissue. The dermis is the inner and thicker layer of the skin and is a fibrous connective tissue that provides strength to the skin (lecture supplement, ch.6). When injury or damage occurs to the skin, it goes through 4 different phases to repair itself. The…

Hello Shi, thank you for sharing your insight on this book. I really appreciate that you throw out many questions which lead me to think deeper than just the story itself about the Henrietta Lacks herself and her family. One of the impressive and throughout question from your reflective paper is that what would happen differently if the HeLa cell line does not make any contribution to the scientific community or research instead HeLa cell line were made to become bioweapons? I agree with you…

Some people believe that cloning is a good thing and some people think it’s a bad thing. “Critics warned that the technology brought with it a high risk of miscarriage and stillbirth (born full-term dead) and for those creatures that did survive, ill health and premature death.” “Doctors hope to use cloning technology to generate stem cells from patients that can then be used to repair damaged parts of the heart, liver, lungs, brain or other vital organs in illness ranging from cardiovascular…