REVIEW SHEET EXERCISE 5 Cardiovascular Dynamics NAME: LAB TIME/DATE: Vessel Resistance The following questions refer to Activity 1: Studying the Effect of Flow Tube Radius on Fluid Flow. 1. At which radius was the fluid flow rate the highest? 6.0 mm 2. What was the flow rate at this radius? 1017.2 mmHg 3. Describe the relationship between flow rate and radius size. The relationship between the flow rate and the radius size is direct with the formula flow rate=radius to the fourth
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Russia Review Sheet Market Economy: an economy that relies chiefly on market forces to allocate goods and resources and to determine prices Command Economy: an economy in which production‚ investment‚ prices‚ and incomes are determined centrally by a government. Socialism: a political and economic theory of social organization that advocates that the means of production‚ distribution‚ and exchange should be owned or regulated by the community as a whole. Traditional: A traditional economy is
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Neurophysiology of Nerve Impulses ACTIVITY 1 The Resting Membrane Potential 1. Explain why increasing extracellular K+ reduces the net diffusion of K+ out of the neuron through the K+ leak channels. If the extracellular K+ increases then the concentration of intracellular K+ will decrease causing a decrease in the steepness of the concentration gradient and fewer K+ ions would be drawn out. 2. Explain why increasing extracellular K+ causes the membrane potential to change to a less negative
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WEEK 1 GEN Adverse reactions for drugs occur because: No drug has only one receptor it binds to. A drug that occupies and "turns on" a receptor is an: agonist Before marketing a new drug‚ the drug company asks the FDA to approve its choice of: trade name The time between when a drug response is observable and when there is no longer an observable drug effect is called the duration of action This term refers to how much of a drug must be given to see a desired response potency
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Introduction In order to understand the causes of autism‚ biologically‚ environmentally‚ cognitively‚ one must understand what autism truly is. According to the American Psychiatric Association‚ autism spectrum disorder is defined by impairment in social interaction and communication skills‚ as well as an occurrence of repetitive behavior along with a need for a routine (APA‚ 2000). The American child psychologist Leo Kanner first described the condition in 1943 (Funk & Wagnalls‚ 2014). It is
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PHYSIOEX 9‚ ACTIVITY #3 Review Questions ACTIVITY #1 1. Explain why increasing extracellular K+ reduces the net diffusion of K+ out the neuron through the K+ leak channels? 2. Explain why increasing extracellular K+ causes the membrane potential to change to a less negative value. How well did the results compare with your predictions? 3. Explain why a change in extracellular Na+ did not significantly alter the membrane potential in the resting neuron? 4. Discuss the relative permeability
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emotions‚ hunger and thirst. Our spinal cord extends several types of nerve fibers from the brain acts like a switching and relay terminal for the peripheral nervous system as is stated in Mosby’s Dictionary. The 12 pairs of cranial nerves emerge directly from the brain Sensory nerves and motor nerves of the peripheral system leave the spinal cord separately between the vertebrae but unite to form 31 pairs of spinal nerves containing sensory fibers and motor fibers. More than 10 billion neurons
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ORGAN SYSTEMS OVERVIEW – ANSWER KEY Review: Dorsal Body Cavity – Brain‚ Spinal cord Thoracic Cavity – Heart‚ Lungs‚ Bronchi‚ Trachea‚ Esophagus‚ Diaphragm Abdominopelvic Cavity – Liver‚ Stomach‚ Pancreas‚ Spleen‚ Small Intestine‚ Large Intestine‚ Rectum‚ Kidneys‚ Ureters‚ Bladder‚ Adrenal Glands‚ Descending Aorta (an artery)‚ Inferior Vena Cava (a vein) Umibilical Region: Stomach‚ Pancreas‚ Small Intestines‚ Aorta‚ Vena Cava‚ Spinal Cord Epigastric Region: Liver‚ Stomach‚ Aorta
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in cardiac muscle tissue. How well did the results compare to your prediction? Cells do not show tetanus or summation because cardiac cells have both long action potentials and long twitches. Activity 2 1) Explain the effect that extreme vagus nerve stimulation had on the heart. How well did the results compare with your predictions? The heart rate decreases stopping the heart temporarily. 2) Explain two ways that the heart can overcome excessive vagal stimulation. Two ways to overcome excessive
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1. In the plasma membrane‚ the phospholipid heads A) are hydrophobic and face outward towards the aqueous solution on both sides of the membrane B) are hydrophilic and face inward‚ shielded from water C) are hydrophilic and face outward towards the aqueous solution on both sides of the membrane D) are hydrophobic and face inward‚ shielded from water Points Earned: 0.5/0.5 Correct Answer(s): C 2. The function of chloroplasts is A) lipid synthesis. B) intracellular digestion
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