Excitable cells Study guides, Class notes & Summaries

Advanced Patho NURS 5315 Exam 1 Questions & Verified Correct Answers Action potential - ANSWER : The process by which excitable cells transmit information from one to another. How is the action potential altered by a potassium imbalance? (Hyperkalemia) - ANSWER : The ECF has more K+ ions. The membrane potential becomes more positive (hypopolarized). Cells become MORE excitable. T waves peak. QRS complexes widen. Causes dysrhythmias, weakness, paresthesia. {If membrane poten...

Ovarian cancer site of metastasis? - ANSWER Peritoneal surfaces, omentum (fold of peritoneum connecting the stomach with other abdominal organs), *liver* The increased NADH/NAD+ ratio in the liver from ethanol causes: - ANSWER 1. Pyruvate --> lactic acid, causing lactic acidosis 2. Oxaloacetate --> malate. This prevents gluconeogenesis and leads to hypoglycemia 3. Glyceraldehyde-3-phosphate --> glycerol 3- phosphate and combines with fatty acids to form triglycerides in the liver,...

Advanced Patho NURS 5315 exam 1 action potential The process by which excitable cells transmit information from one to another. How is the action potential altered by a potassium imbalance? (Hyperkalemia) The ECF has more K+ ions. The membrane potential becomes more positive (hypopolarized). Cells become MORE excitable. T waves peak. QRS complexes widen. Causes dysrhythmias, weakness, paresthesia. {If membrane potential becomes equal to threshold potential cardiac standstill occurs}...

NURS 5315 Advanced Pathophysiology Ovarian cancer site of metastasis? Peritoneal surfaces, omentum (fold of peritoneum connecting the stomach with other abdominal organs), liver The increased NADH/NAD+ ratio in the liver from ethanol causes: 1. Pyruvate --> lactic acid, causing lactic acidosis 2. Oxaloacetate --> malate. This prevents gluconeogenesis and leads to hypoglycemia 3. Glyceraldehyde-3-phosphate --> glycerol 3- phosphate and combines with fatty acids to form triglyce...

3 Distinct Types of Muscle correct answers 1. Skeletal muscle ~ 40% BW, has striated, tubular multinucleated fibers, usually attached to skeleton, voluntary 2. Smooth muscle- narrow, atpered rod shaped cells, nonstriated, uninucleated fibers, occurs in the walls of internal organs and blood vessles, involuntary 3. Cardiac muscle (smooth + cardiac= 10% BW) - striated, tubular, branches, uninucleated fibers, occurs in the walls of the heart, involuntary Muscle is an excitable contractil...

action potential - answer-The process by which excitable cells transmit information from one to another. How is the action potential altered by a potassium imbalance? (Hyperkalemia) - answer-The ECF has more K+ ions. The membrane potential becomes more positive (hypopolarized). Cells become MORE excitable. T waves peak. QRS complexes widen. Causes dysrhythmias, weakness, paresthesia. {If membrane potential becomes equal to threshold potential cardiac standstill occurs} How is the actio...

Which are common symptoms of hypokalemia? Select all that apply. A. Paresthesia B. Bradycardia C. Shallow respirations D. Weak, thready pulse E. Musculoskeletal weakness - C, D, E Which electrolyte deficiency results in decreased depolarization in the excitable cells and increased cellular swelling? A. Sodium B. Calcium C. Potassium D. Magnesium - A Which electrolyte imbalance should be anticipated and monitored in a patient with hyperphosphatemia? A. Hypokalemia B. Hypocalcemia C...

Bio 210 chapter 11 questions and answers rated A+ The nervous system is? The master controlling and communicating system of the body The three functions of the nervous system are? 1. Sensory input 2. Integration 3. Motor output The sensory input gathers information by the internal and external sensory receptors The integration function processes and interprets the sensory input The motor output function activates the effector organs (muscles and glads) and produces the appro...

TEST BANK FOR Campbell Biology 9th Edition Glossary A 5′ cap - A modified form of guanine nucleotide added onto the 5′ end of a pre-mRNA molecule. A site - One of a ribosome's three binding sites for tRNA during translation. The A site holds the tRNA carrying the next amino acid to be added to the polypeptide chain. (A stands for aminoacyl tRNA.) ABC hypothesis - A model of flower formation identifying three classes of organ identity genes that direct formation of the four types of f...

Action Potential: Hypokalemia leads to what complications - answer-Potassium leaves the cell leaving behind negative anions, cell hyperpolarizes making the cell more negative and therefore less excitable CC: Weakness, Smooth Muscle atony, parathesias (pins and needles), Cardiac dysrythmias Action Potential: Hyperkalemia lead to what complications - answer-Increased potassium will come into the cell and make it more positive, depolarization will occur taking the RMP closer to the Thresho...