Acetylcholine ach - Study guides, Class notes & Summaries
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Biological and Biochemical Foundations of Living Systems || with 100% Error-free Answers.
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Phosphatase correct answers This myosin-actin interaction forms the basis of the cross-bridge cycle (CBC), which causes muscle contraction, as in skeletal -bridge cycling (CBC) requires phosphorylation of the myosin light chain (LC20). 
 
A .............. is an enzyme that removes a phosphate group from its substrate 
 
composed of actin and are dynamic 
and are lengthen by polymerization or shortened by depolarization correct answers microfilaments are 
 
provide strucule support for the cell ...
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AP PSYCHOLOGY REVIEW, AP PSYCH TEST COMPLETE WITH ANSWERS
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AP PSYCHOLOGY REVIEW, AP PSYCH TEST 
COMPLETE WITH ANSWERS 
ablation 
ANSWER = removal or destruction of brain tissue in a surgical procedure 
absolute threshold 
ANSWER = intensity level at which one can detect a stimulus 50% of the time 
accommodation 
ANSWER = the process of modifying a schema to account for new information; the 
process of the eyes lens changing shape in order to focus on distant or near objects 
acetylcholine (ACh) 
ANSWER = a neurotransmitter involved in learning, memory a...
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PMC Prep Exam 1 Questions & Answers 2024/2025
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PMC Prep Exam 1 Questions & Answers 2024/2025 
 
 
Describe Autonomic Nervous System (ANS). What are autonomic functions? - ANSWERSANS functions are not under direct conscious control (happen without thinking). E.g. Cardiac function, endothelial function, digestion, blood flow to organs etc. 
 
What is a neurotransmitter? - ANSWERSa chemical substance that is released at the end of a nerve fiber by the arrival of a nerve impulse and, by diffusing across the synapse or junction, causes the transf...
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Exam 3: NSG550/ NSG 550 (Latest 2024/ 2025 Update) Diagnostic Reasoning for Nurse Practitioners Review| Questions and Verified Answers| 100% Correct| Grade A
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Exam 3: NSG550/ NSG 550 (Latest 2024/ 2025 Update) Diagnostic Reasoning for Nurse Practitioners Review| Questions and Verified Answers| 100% Correct| Grade A 
 
Q: Acetylcholine receptor antibody test 
 
 
Answer: 
Used to diagnose acquired myasthenia gravis and monitor pt response to immunosuppressive therapy. MG is an autoimmune disease caused by antibodies that block or destroy receptors for Ach. MG s/s=muscle weakness and fatigue 
 
 
 
Q: Cholinesterase 
 
 
Answer: 
Identify patients with ...
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PCOL 824 Final Exam UPDATED ACTUAL Exam Questions and CORRECT Answers
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PCOL 824 Final Exam UPDATED 
ACTUAL Exam Questions and CORRECT 
Answers 
Acetylcholine - CORRECT ANSWER- Endogenous ligand for nicotinic and muscarinic 
receptors. Easily hydrolyzed by acetylcholinesterase. 
Methacholine - CORRECT ANSWER- Methylated version of ACh makes it less 
susceptible to hydrolysis. Has high affinity for muscarinic receptors and no affinity for 
nicotinic receptors
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NSCA-CSCS Exam 2023 with 100% correct answers
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Which of the following substances regulates muscle actions? 
 
a. Potassium 
b. Calcium 
c. Troponin 
d. Tropomyosin - correct answerb. Calcium 
 
Which of the following substances acts at the neuromuscular junction to excite the muscle fibers of a motor unit? 
 
a. Acetylcholine (ACH) 
b. ATP 
c. Creatine Phosphate 
d. Serotonin - correct answera. Acetylcholine (ACH) 
 
When throwing a baseball, an athlete's arm is rapidly stretched just before throwing the ball. Which of the following structu...
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Advanced Med Surg Final Exam 2023/2024 with 100% correct answers graded A+
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A patient with myasthenia gravis is admitted to the hospital with respiratory insufficiency and severe weakness. When is a diagnosis of cholinergic crisis made? 
 
a. The patient's respiration is impaired because of muscle weakness. 
b. Administration of edrophonium (Tensilon) increases muscle weakness. 
c. Administration of edrophonium (Tensilon) results in improved muscle contractility. 
d. EMG reveals decreased response to repeated stimulation of muscles. 
b. 
The reduction of the acetylchol...
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PCOL 824 Final Exam with Complete Solutions
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PCOL 824 Final Exam with Complete Solutions 
Acetylcholine - Answer-Endogenous ligand for nicotinic and muscarinic receptors. Easily hydrolyzed by acetylcholinesterase. 
 
Methacholine - Answer-Methylated version of ACh makes it less susceptible to hydrolysis. Has high affinity for muscarinic receptors and no affinity for nicotinic receptors. 
 
Carbachol - Answer-Transaminated version of ACh that results in negligible hydrolysis for longer half life. Has normal affinity for nicotinic receptors...
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PMHNP 1 Final Exam Questions and Answers Rated A+
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PMHNP 1 Final Exam Questions and 
 
Answers Rated A+ 
 
_______ is produced in the locus ceruleus of the pons 
Norepinephrine 
The hallmark symptom in _______ is a disturbance of consciousness accompanied by changes in 
cognitive function 
delirium 
Disturbance of consciousness develops over a short time, usually hours to days is seen in 
_______ 
delirium 
 
How are Sleep-rest cycle different in patients with delirium? 
clients are awake at night andsleep during the day. 
Impaired _______ and _...
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Bio 264 Exam 3 Questions and Answers Already Passed
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Bio 264 Exam 3 Questions and Answers 
 
Already Passed 
 
What structure runs from Z line to Z line? Sarcomere 
 
The movement of the troponin-tropomyosin complex requires _______ Ca2+. 
 
The actin filament is a polymer formed from 300 to 400 globular subunits called ______ G- 
actin. 
 
A myofilament is the _________. Protein strand composed of actin or myosin 
 
T tubules ________. Conduct action potentials deep into the muscle cell 
 
A drug that interferes with the active transport of calci...
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