Categories
Biology

respond to student 100 words

For this week’s discussion I am going to talk about the brain and its major subdivisions and landmarks. There are two directional terms that are used when referring to the brain. The first is rostral, which means “towards the forehead” (Saladin, 2015). The second term is caudal, which means “toward the spinal cord” (Saladin, 2015).

            The brain can be divided into three major portions: the cerebrum, cerebellum, and the brainstem (Saladin, 2015). The cerebrum is by far the largest portion of the brain, about 83% of the total volume, and can be further subdivided into two hemispheres, the left cerebral hemisphere and the right cerebral hemisphere (Saladin, 2015). The hemispheres are separated by a long groove called the longitudinal fissure (Saladin, 2015). Each hemisphere is made up of think folds called gyri, and the shallow grooves that separate each gyri are called sulci (Saladin, 2015).  Furthermore, each hemisphere contains the different lobes of the brain, one for each hemisphere. From rostral to caudal, there are the frontal lobes, temporal lobes (on the side above where the ear would be), the parietal lobes, and the occipital lobes (Saladin, 2015). At the bottom of the longitudinal fissure, deep inside the brain, there lies a bundle of nerve fibers called the corpus callosum (Saladin, 2015).

            Next, there is the cerebellum, the second largest portion of the brain, about 10% of the brain’s volume (Saladin, 2015). It is also made up of gyri and sulci, and contains about 50% of the brain’s neurons (Saladin, 2015). The cerebellum is located underneath the occipital lobe in the posterior cranial fossa, and is separated from the cerebrum by the transverse cerebral fissure (Saladin, 2015).

            Finally, there is the brainstem. It is the smallest part of the brain, and its major components, from rostral to caudal, are the diencephalon, midbrain, pons, and the medulla oblongata (Saladin, 2015). The brainstem is the part of the brain that branches down and connects with the spinal cord (Saladin, 2015).

            For remembering the anatomy of the brain, I really liked the example the textbook used. The text describes the brainstem being oriented like a stalk with the cerebrum and cerebellum being perched on top like a mushroom cap (Saladin, 2015).

Categories
Biology

What is iOS

What is iOS 

Categories
Biology

BIOL134 Forum 13

Read the attached case study and answer the 3 questions at the end. Thank you!

Categories
Biology

Bio exam

Bio exam 

Categories
Biology

stem cells 2-3 paragraph article

Read the following online article on stem cells. http://www.iflscience.com/health-and-medicine/beginner-s-guide-understanding-stem-cells/

You must use proper APA citation format both in the text and at the end of your post.  

Categories
Biology

genetics

2. Read about quorum sensing as a mechanism of gene expression regulation in bacteria.

3. Explore the sources provided in questions 1 & 2, then answer the questions. You can also look in PubMed for articles on clinical trials for autoinducer treatments.

4. Post what you discover in the discussion area of Canvas:
     a. Have any autoinducer inhibitors reached clinical trials? For treatment in which diseases?

     b. What are the benefits and limitations of autoinducer inhibitors?

     c. What sorts of species comprise the human microbiome?

     d. How does quorum sensing contribute to microbial balance in the gut? What’s the connection between quorum sensing and IBD, obesity & diabetes?

include citations 

Categories
Biology

Digging Into Data Ch8 And Ch9

 Answer Chapter 8 and 9 “Digging into Data” questions, save your answers in a MS Word document. They are more straight forward than last week (I think..), but make sure to do all 3, for a total of 9 questions. 

Categories
Biology

i need to no the life proseces of the fungi ring worm

i need to no the life proseces of the fungi ring worm

Categories
Biology

Describe the impact the Armory Show (1913) had on the American art scene. Use examples to support your essay. 3. Describe Pablo Picasso’s Demoiselles d’Avignon. How did this work re

choose two of the five questions below and answer them in essay format. Each of your responses should be a minimum of 300 words in length, include a minimum of three key terms from the course so far, and any outside references used must be cited. 1. Contrast the work of Renoir and Laurtrec. How do the subjects’ styles of the artists reflect nineteenth century French society and the innovations of nineteenth century art? Use examples to support your essay. 2. Describe the impact the Armory Show (1913) had on the American art scene. Use examples to support your essay. 3. Describe Pablo Picasso’s Demoiselles d’Avignon. How did this work re-shape the art of the early twentieth century? Include in your discussion the influences coming from Primitive art. Use examples to support your essay. 4. Describe the development of sculpture at the end of the nineteenth century. Use examples to support your essay. To what extent did sculpture remain conventional? What painting movements did it take into account? 5. Explain the development of Cubism and the artistic movements that it spawned. Use examples to support your essay.

Categories
Biology

"Energy Sources and Energy for Life" Note: Online students, please respond to one (1) of the following three (3) bulleted items. Discuss three (3) types of energy sources used by cells then provide two (2) examples of when / in what cells / situations you

“Energy Sources and Energy for Life”

Note: Online students, please respond to one (1) of the following three (3) bulleted items.Discuss three (3) types of energy sources used by cells then provide two (2) examples of when / in what cells / situations your chosen energy sources are used. Next describe two (2) forms of transport within the cell and the specific energy source used in each form of transport.

The effectiveness of dieting has been debated for years. There are several diets available including Atkins, Zone, Carbohydrate, Weight – Watchers, Jenny Craig, Dukan, Mediterranean, or 22 Day Vegan. Choose two (2) diets that were listed previously then explain four (4) effects each of your selected diets has on one’s energy and overall health including any hazardous effects.

Review the animation on enzymes found here  then in your own words define the term enzyme. Next choose one (1) enzyme of your choice then determine its function in the body. In addition, discuss three (3) advantages of having metabolic pathways in the cell and the specific role enzymes play in those processes