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BIO 806-177 Anatomy and Physiology

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    • Medium 82%

    • Hard 18%

  • Top Course Tags

    Great Intro to the Subject

    Participation Counts

    Meetings Outside of Class

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Anatomy and Physiology Questions & Answers


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  • 6 terms

    Term:

    1. Define pH. Explain why the pH of the blood must be maintained between 7.35 and 7.45. Explain, in terms of hydrogen ion concentration, the difference between a pH of 2 and a pH of 5. What is a “buffer”? List two buffers used by the cells of the body. What is the primary base of the body.

    Definition:

    PH is defined as the measure of free floating Hydrogen ions (H+) in the blood and the PH must be maintained between 7.35 and 7.45 because in that PH enzyme work optimally, otherwise proteins lose their shape and are unable to perform their job, and most importantly DNA will be damaged so the instructions for creating amino acids will be jacked up, If PH changes drastically we die. A pH of 3 is more acidic than a pH of 6, the difference is that the pH of 3 is 1,000 times more acidic than a pH of 6. The primary base of the body is bicarbonate HCO3-. If a person kept having diarrhea their PH would decrease because HCO3- bicarbonate which is the primary base of the body cannot be reabsorbed through the large intestine back into the blood and we would then have an excess of free floating H+ ions in the blood, less HCO3- and a pH less than 7.35.The PH of a person that throws up decreases because when we throw up we vomit stomach acid thus decreasing the H+ Hydrogen ion concentration in the blood and increasing the levels of bicarbonate HCO3- increasing pH levels above 7.45. A chemical buffer binds and neutralizes H+ Hydrogen ions, preventing a marked change in pH; if pH is high the buffer will decrease it and if its low it will increase it, it will try to reach homeostasis. Two examples would be HCO3- bicarbonate which binds and neutralizes H+ Hydrogen to form H2CO3, and albumin which is a big protein only found in the blood and acts like a bus transporting Ca+2 Calcium. The H+ ions and Calcium compete to bind to the chemical buffer found in albumin and H+ usually wins unless we have a reduced number of free floating H+ ions. A physiological buffer are 2 systems of the body the respiratory and kidneys. The respiratory system is responsible for the removal of carbon dioxide, which is an acid. CO2 mixes with H2O and forms Carbonic acid H2CO3; with increased respirations, less CO2 remains in the blood which leads to less carbonic acid and fewer H+ ions the opposite is true for increased respirations. Increased or decreased respirations is a respiratory adjustment to counter pH imbalance in the body. Kidneys are responsible for controlling H+ levels and reabsorbing bicarbonate HCO3- from the urine turning H+ and HCO3- bicarbonate into Carbonic acid H2CO3 thus reducing the amount of free floating H+ ions.

    • advanced A/P midterm
    • 6 terms
    • Vocabulary for advanced A/P midterm. Find, create, and access Anatomy, flashcards with Course Hero.

Anatomy and Physiology Advice

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    • Profile picture
    May 12, 2017
    | Would recommend.

    Not too easy. Not too difficult.

    Course Overview:

    Very hands on experience! Great lectures with well correlated labs.

    Course highlights:

    Great starter class for science majors

    Hours per week:

    6-8 hours

    Advice for students:

    You get out of it what you put in to it. Take the time to study and focus. If you aren't sure of something, ask questions. Form a study group.

    • Fall 2009
    • unknown
    • Yes
    • Great Intro to the Subject Go to Office Hours Participation Counts
    • Profile picture
    Feb 18, 2017
    | Would highly recommend.

    This class was tough.

    Course Overview:

    I love this professor, he is a nurse and teaches the class as a nurse. He completely prepares his students for clinicals and gives them every opportunity to learn and then has very high expectations for them. I would take him for every class if I could.

    Course highlights:

    I learned the information in a real world way. He skipped over looking through microscopes to identify different cells and instead used that time to emphasize why the liver is important and what it looks like when a patient has a failing liver. He talked about each part of the body as a whole and emphasized the clinical applications. I loved the section on metabolism because so much of the body comes back to that basic principle and it made so much sense as we moved through the course.

    Hours per week:

    6-8 hours

    Advice for students:

    Read the chapters! And watch the lectures he puts up on YouTube. He really does give every opportunity to succeed but slacking off in the beginning will bite you in the end. Every concept builds on the previous one.

    • Fall 2016
    • sorenson
    • Yes
    • Lots of Writing Always Do the Reading Requires Lots of Research
    • Profile picture
    Jan 01, 2017
    | Would highly recommend.

    Not too easy. Not too difficult.

    Course Overview:

    I would recommend this class only because it's a must to pass in order to move on, but also because it give you a lot of information needed to move on. Plus it's a fun class to learn about the human body and the bones. This class helps you understand the outside world in whatever medical career you are determined to accomplish.

    Course highlights:

    The best parts of this class is learning the bones and each part of the bones. Actually getting to touch and hold the bones to understand their meaning in life is easy to learn. It is even better to have a great teacher who makes it fun for the class and interacts with the students. Before a test or quiz, she would write each part of the bones or the bones themselves onto a piece of paper and put it into a jar and we would have to match them with a model of the bone and give us extra credit for the correct part.

    Hours per week:

    6-8 hours

    Advice for students:

    study, study, study. Its best to stay after school or come before class to mess around with the models of bones or the human skeleton itself to learn each part of the bones and what they are called. The teacher will also quiz you on the parts and have you point to what that is, or where that bones connects to the other one and so on.

    • Summer 2016
    • lori
    • Yes
    • Great Intro to the Subject Participation Counts Meetings Outside of Class


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