1. Explain, briefly, why the 10-fold difference in concentration of Na+ across the membrane is important to excitable membranes. 2. How do voltage-gated calcium channels relate to electrical activity of the neuronal vs. sarcolemmal membrane? Concentrate on the differences. Keep your answer brief (3-4 sentences). 3. Why are m
1. Why would administering bicarbonate to a patient be advisable if his blood pH was too low? What is the bicarbonate going to do to adjust the pH of the blood? 2. A drug works by binding to the active site of an enzyme. Why would that cause a physiological change?
Designated as "Journ" in the grade book.) You have the chance to search the Internet for websites that may be of use to a human biology student seeking a resource for study. You'll keep a journal of this, and in the end, declare which website you feel is the most useful to a student in this course. Browse the web for course-real
Why does the shoulder joint have more freedom of movement than any other joint of the body? The entire process of coordinated, voluntary, muscle contraction is summed up as excitation-contraction coupling. Why are these two things coupled, and what, specifically, is responsible for bring excitation and contraction together i
1. Why is knowing the patient is at risk for bacterial endocarditis important to the emergency room workers? 2. Although a bone density scan is the test that verifies a diagnosis of osteoporosis, what results from the other tests (chemistry profile, thyroid studies, urinalysis, and CBC) would contribute to the diagnosis?
I need some help in these questions on joints, their movements and some of the homeostatic imbalances in diseases: 1. Identify a homeostatic imbalance (disease) of a joint or joints; 2. Describe the joint by its structural and functional classification; 3. Describe the type of movement that joint or joints exhibit; 4. Descri
The endocrine system plays an important role in our ability to handle stress. Hormone release associated with the stress response can help us to survive and handle crisis situations. However, chronic stress can result in unregulated release of stress hormones that can have negative effects on the brain and our immune systems.
15 PowerPoint slides consisting of mostly pictures Discuss the anatomy/physiology of the ear (in speaker notes) Discuss the structures responsible for maintenance of rotational and gravitational equilibrium (in speaker notes) Required Readings Ebrary bookshelf (folder): http://site.ebrary.com/lib/tourou/viewFolder.action
This is a presentation on histology, the study of the microscopic anatomy of cells and tissues. You must make at least 15 slides that provide your audience with information on the histology of two tissues, epithelium and connective tissue. Your slides should include the following sections: Discuss the importance of a cell an
Jim has taken heroin for the past 5 years. One day, Jim and Jack go out and both use large quantities of heroin. Although both did the same amount of drugs, Jack dies from an overdose. Discuss how drug tolerance and conditioning may factor into this outcome. 100 words
Please help with following questions. 1. Provide a discussion of the normal anatomy and physiology of the vertebral column. 2. Describe the pathological (disease) processes involved in degeneration and herniation and of the vertebral disks and how these disease processes represent an alteration from the normal physiology
The human body is truly remarkable and is designed to function effectively. Organs are important structures composed of different tissues that facilitate specific functions within the body. Organs function as part of an integrated group of structures known as organ systems. These organ systems form the organizational units that
Title: Exploring Endocrine, Circulatory, and Respiratory Systems Instructions: Your lab report will consist of the completed tables. Label each component of the endocrine, cardiovascular (circulatory), and respiratory systems and their functions in the following tables. 1. Endocrine System: Fill in the following table:
A patient has a tumor pressing against her thoracic aorta at T5, which is decreasing blood flow. How can blood travel to the lower limb? What is a pathway that starts and ends at the aorta and allows arterial blood to bypass the obstruction? Include anastomoses.
What is the pathway of lymph flow from the abdomen to the superior vena cava? Specifically, what is the pathway of lymph from the L intestinal trunk to the superior vena cava?
In the human body, we tend not to be concerned about how the body functions until it stops functioning normally. To that end, you will explore one pathophysiological process that is related to the skeletal system. - Describe the pathological (disease) process at work in people who have been diagnosed with the bone disease kn
1) Describes the processes and forces involved in bulk flow at the capillaries. include an explanation of which direction water/plasma at each end of the capillary bed and why? 2) Explain the difference between portal and normal veins. 3) Explain the relationship among blood flow, blood pressure, and resistance. Multip
1) How does the decrease in vital capacity potentially influence an individual's athletic performance or aerobic condition as aging occurs? 2) What is the functional nature of a "portal system" and how does it differ from normal venous return flow? 3) Why might a clot in the lungs (a pulmonary embolism) occur after a deep
1) How does a differential leukocyte count aid in medical diagnosis? 2) In counting 100 leukocytes you are accurately able to distinguish 15 basophils. Is this a normal number for the white blood cell count, and what possible health implication can you draw from this? 3) Name all of the blood vessels that would carry a red
The human body has 10 organ systems (actually 11 if you include the integumentary system). From the 11 systems, pick one system and describe how its loss would disrupt the body's homeostasis and how that loss would tend to disrupt the function of at least two other systems.
Rachel Williams was rushed to the emergency room with intermittent, spasmodic pains in her epigastric region that traveled all the way to the right side of her rib cage. She stated that she had eaten a fried meal at McDonald's, and after that the attack came on suddenly. Her abdomen feels sensitive to touch and is rigid. What
Describe the human body. Include the digestive and muscular systems. Include parts of the hears, skeletal system and excretory system.
Explain and detail the hormones and phases of the uterine cycle. Please list references so I do not duplicate my research or use text book information.
1. How does the activity of lysozymes protect the eyes from microorganisms? 2. Which conditions favor the development of acne? 3. Why is the blood brain barrier considered both good and bad? 4. Describe the four different locations where an anthrax infection can occur. Which are the two most common sites?
Compare the effects of the destruction of the spinal nerve's dorsal root ganglion to the destruction of the ventral root. 200 words.
1) How does the central canal differ from a lacuna in terms of location and material found in each respective space? 2) In the disease osteoporosis there is a significant loss of spongy bone. Explain how the loss of this specific bone material can weaken a bone. 3) The superior articular process of a vertebra articulates w
1) Two common blisters of the integument are watery blisters, filled with a clean fluid, and blood blisters, filled with blood. Based on your knowledge of the blood supply to the integument, describe what layer might be damaged in the these two blisters 2) Synthetic bone material know as hydroxyapatite is frequently molded in
1. Which of the following statements about the left side of the heart is false? o the left ventricle pumps blood into the systemic circulation o deoxygenated blood returns to the left atrium o the left sided heart failure results in fluid buildup in the lungs causing pulmonary edema o the left ventricle pumps oxygenated
Identify and describe the regulating centers that coordinate the circulation through the CV system as in the baroreceptors, chemoreceptors etc. Show references so I can further develop the information.
Mr. Ally went to the eye doctor and complained about dark areas in his vision he had never noticed it before. There is no pain. What is the diagnosis? Explain the reason behind floaters and dark areas in the visual field. How should the doctor treat Mr. Ally?