Monday, December 19, 2011
Go to Virtual Skeleton pay special attention to the differences you see in the skull and bones based on race and gender. You must use Safari for your browser for this. Write a blog describing some of the differences you see
Caucasoid skulls have a protecting chin form, high and peaked nasal cross section, a small degree of facial prognathism, a rounded and elongated oval sagittal outline, and a narrow pointed mastoid process. American Black skulls have an elongated sagittal outline, a low and broad nasal cross section, a high degree of facial prognathism, and an oblique mastoid process. Asian skulls have a medial and slightly peaked nasal cross section, a rounded sagittal outline, a broad pointed mastoid process, and a low degree of facial prognathism. Male skulls have a more robust occipital protuberance, pronounced superciliary arches, a larger and more distinct temporal line, and a larger and more downward protuding mastoid process. Male skulls' zygomatic ridge extends beyond the external auditory meatus. Female skulls have parietal bossing, which are often seen in gracile male or female Caucasoids. Female skulls also have a smaller, less downward projecting mastoid process and a vertical and rounded frontal. The zygomatic does not extend past the external auditory meatus, unlike the male skulls.
What has surprised or interested you so far in Dead Men Do Tell Tales
William Maples seems to be a very hardworking and dedicated to his job. It surprises me how one can commit to one's job as much as Maples. He has drawn inspiration for me to work harder and motivate myself to do the job I wish to. Maples talks about his job in such admiration in Dead Men Do Tell Tales that I probably would not find within myself. However, it has inspired me to work harder to achieve my goals and become a pharmacist. Hopefully I would admire my job as much as Maples.
Monday, October 24, 2011
Describe the two ways that bones grow and develop
The skeleton is formed from cartilage and bone, two of the strongest and most supportive tissues in the body. Most bones develop using hyaline cartilage structures as their 'models.' These supporting structures are then replaced by bone tissue. Epiphyseal plates persist to provide for longitudinal growth of long bones during childhood and become inactive when they grow older. Bones change in shape in time. This remodeling occurs in response to hormones and mechanical stresses acting on the skeleton.
found information in book.
found information in book.
Describe three treatments that can be used on broken bones? How is each used?
When bones are broken, an X ray is used to confirm the diagnosis. It is also used to view the type of fracture and the degree of displacement and misalignment. The first aim in treatment is to see that bone ends that abut each other are aligned so when the fracture heals, the bone will retain its previous shape. Bone ends that have been displaced are moved back into position. The bone may be manipulated through the skin using a local or general anesthetic. The bone may be repositioned by means of an operation in which the site is opened. When the fracture has been placed in proper position, the bone is immobilized to allow the broken pieces to reunite. The ends of the fractured bone may be fixed through the skin and into the bone and kept in position by attachment to an external frame. Once the fracture has healed, the pins and frame are removed.
Sunday, October 9, 2011
Chapter 3 Wordle
Cells are the smallest units or building blocks of all living things. There are many structures to the cell: the nucleus, the cytoplasm and many other organelles. Cells vary in size, shape, and function, thus creating cell diversity. Passive transport processes and active transport processes occur throughout the cell membrane. Cell division is a process of which a cell reproduces itself. It starts out with DNA replication. Interphase, prophase, metaphase, anaphase, and telophase and cytokinesis. RNA and DNA play significant roles in carrying out functions of the cell as well. Groups of cells that are similar in structure and function are called tissues. The four types of tissue are epithelium, connective tissue, nervous tissue, and muscle. The classifications by cell arrangement are simple epithelium and stratified epithelium which can further be grouped as squamous, cuboidal, or columnar. The types of connective tissue are: bone, hyaline cartilage, fibrocartilage, dense fibrous, areolar, adipose, reticular, and blood. The three types of muscle tissue are: skeletal, cardiac, and smooth. Regeneration is the replacement of destroyed tissue by the same kind of cells and fibrosis involves repair by dense connective tissue.
Thursday, October 6, 2011
Describe tissue disease
Tissue repair occurs in two major ways: by regeneration and by fibrosis. Regeneration is the replacement of destroyed tissue by the same kind of cells. Fibrosis involves repair by dense connective tissue by the formation of scar tissue. Which occurs would depend on the type of tissue damaged and the severity of the injury. First the capillaries become very permeable. Then the granulation tissue forms. Finally the surface epithelium regenerates. Scar tissues do not have the ability to perform the normal functions of the tissue it replaces.
Thursday, September 29, 2011
Describe how the common cell is the root of multicellular organism diversity.
Cells are primarily made up of four elements: carbon, oxygen, hydrogen, and nitrogen in addition to smaller amounts of other elements. The major building material of the cell is protein. Cells are all different in size and shape. The shape reflects function. All cells exhibit irritability, digest foods, excrete wastes, and are able to reproduce, grow, move, and metabolize. Cells transport substances through the cell membrane either by passive transport or active transport. Osmotic pressure determines if cells gain or lose water. Cell division has two phases, mitosis and cytokinesis. Protein synthesis involves DNA and RNA.
Wednesday, September 21, 2011
Chapter 1 Wordle
Anatomy and Physiology are both significant terms in chapter 1. They are closely related. Anatomy is the study of the structure and shape of the body and body parts and the relationships with one another. Physiology is the study of how the body and its parts work and function. Homeostasis is also another important term because it is a relatively stable internal environment within the body which helps with survival and good health.
Sunday, September 18, 2011
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