Those who are planning to sit for the HESI EXAM, the TEAS-ATT, or the NURSING ENTRANCE TESTwill probably have to apply their knowledge of anatomy and physiology. At the nurses learning centerthe student will find thousands of questions and tests with online access to practice their anatomy and physiology anytime throughout the day or night. Preparing for the anatomy and physiology section of the HESI, THE NURSING ENTRANCE TEST OR THE TEAS, can be a daunting task without proper preparation. The student of A&P is required to study vast amounts of knowledge. This knowledge over two semesters is very difficult to retain, especially with other classes that the student is taking. Therefore it helps to have the right test knowledge streamlined at the student’s fingertips. The articles contained in this site will assist the student preparing for the NURSING ENTRANCE TEST, THE HESI, and the TEAS-ATT anatomy and physiology section to help bring that knowledge to a level that is actually applicable. Similar to nursing school. As a matter of fact, the topics that are covered in the A&P section on the NURSING ENTRANCE TEST, is covered in the first semester of nursing school. For instance, in the paragraphs that follow the subject is how people get allergies. This is directly related to the immune system and the immunoglobin E, which controls the severity of the reaction.
Why do we get allergies? Perhaps your mother, grandmother or someone in your family suffers from allergies. Does this mean that you will inherit the same allergies? Well, actually, it is very possible. Allergies are caused from an immune response that the body mounts against the allergen. This can happen at any time during a persons life. For example, strawberries may not have ever bothered you, but one day you eat a strawberry and then you begin to break out in hives, a runny nose, congestion and difficulty breathing. More than likely at this point, your body mounted an allergic response to strawberries. Therefore the next time and each consecutive time after, that you eat a strawberry, the allergic response of your body will become more and more pronounced. Immunoglobuin E or IgE is the protagonist that ultimately begins the cascade of a series of physiological reactions that ultimately result in allergy symptoms. Histamines are then released to the areas that are most sensitive, such as nose, throat and eyes. The nervous system is comprised of a division called the autonominc nervous system which branches into the sympathetic and parasympathetic nervous systems. Sympathetic nervous system: A part of the nervous system that serves to accelerate the heart rate, constrict blood vessels, and raise blood pressure. The sympathetic nervous system and the parasympathetic nervous system constitute the autonomic nervous system, the branch of the nervous system that performs involuntary functions. The parasympathetic nervous system is activated during an allergic response, which is why we feel like we are filling up with fluid. Physicians usually prescribe antihistamines such as the brand Benadryl or Epi-pens to alleviate severe allergy symptoms by stimulating the sympathetic nervous system. People with allergies are told to avoid those foods or items which cause an allergic response. With people who have multiple allergies, it is not always possible to refrain or avoid all of the allergens that cause them reactions. Therefore, such over the counter remedies fall short of helping the person live a allergy symptom life. Sometimes it becomes necessary for physicians to prescribe autoimmune drugs in order to surppress the patient’s immune system to prevent a severe allergic response. This type of treatment has its drawbacks since it renders the patient helpless against attack from viruses and disease. Many common ailments that plague people stem from some type of allergic response, such as rheumatoid arthritis, diabetes, and HIV.