Gated channels - Study guides, Class notes & Summaries
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NURS 8022 Exam 1 Questions With Correct Answers 100%
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NURS 8022 Exam 1 Questions With Correct 
Answers 100% 
Negative Feedback - ANSWER Promotes stability; cancels out 
the original response. Ex: High FSBS, increased insulin by the 
pancreas 
Positive Feedback - ANSWER Promotes a change in one 
direction; instability, DISEASE. Ex: Blood clotting, platelet 
cascade 
Proteins - ANSWER Provide selectivity to a membrane 
Integral proteins - ANSWER channels, pores, carriers, enzymes, 
receptors, second messengers 
Peripheral proteins - ANSWER Enzy...
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Bio 181 ASU Exam 3 Questions with complete solutions
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Bio 181 ASU Exam 3 Questions with 
complete solutions 
List the 4 types of glial cells and list a phrase to describe their function. - answer1. Schwann 
cells wrap around the axon of a cell in the PNS, while providing electrical insulation. 
2. Oligodendrocytes do the same thing as Schwann cells but they do it in the CNS. 
3. Astrocytes protect the brain from toxic chemicals. 
4. Microgilia protect the brain. 
T/F When the presynaptic cells contacts a muscle cell, the synapse area is called a mo...
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TEST BANK FOR PORTH'S ESSENTIALS OF PATHOPHYSIOLOGY 5TH EDITION BY TOMMIE L. NORRIS ALL CHAPTERS COVERED ISBN-10; 1975107195/ ISBN-13; 978-1975107192/ GRADED A
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TEST BANK FOR PORTH'S ESSENTIALS OF PATHOPHYSIOLOGY 5TH EDITION BY TOMMIE L. NORRIS ALL CHAPTERS COVERED ISBN-10; 1975107195/ ISBN-13; 978-1975107192/ GRADED A 
Page 1 
Porth's Essentials of Pathophysiology 5th edition TB_ 
 
 
1. Chapter 1 
 
Although the basic structure of the cell plasma membrane is formed by a lipid bilayer, most of the specific membrane functions are carried out by: A) Bound and transmembrane proteins B) Complex, long carbohydrate chains C) Surface antigens and ho...
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GTC BIO2113 Final Exam Review 2023 with complete solution
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GTC BIO2113 Final Exam Review 2023 with complete solution 
 
Visceral 
Tissue that covers organs 
Parietal 
Tissue that covers an entire cavity 
Pleura 
Tissues found in Thoracic cavity 
Peritoneum 
Tissues that line Abdominopelvic Cavity 
Endocrine, Nervous 
Two systems integral to homeostasis 
Negative Feedback 
Opposes variations from "normal" in body to maintain homeostasis 
Antecubital 
Pertaining to front of elbow 
Pollex 
Thumb 
Calcium 
Homeostasis acquired by taking from bone, food. V...
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Psychopharm Exam 1 practice 170 Questions with Verified Answers,100% CORRECT
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Psychopharm Exam 1 practice 170 Questions with Verified Answers 
 
The PMHNP is evaluating a 68-year-old man for symptoms of major depression. While assessing the appearance of the patient, an obvious left-sided ptosis is noted. Which cranial nerve is directly linked to this condition? 
a. III 
b. IV 
c. V 
d. VI - CORRECT ANSWER A 
 
A 55-year-old woman has been referred for a psychiatric evaluation for a change in personality, lack of impulse control, and increasingly reckless decision-making....
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NR 546 Neurotransmitter Table : Updated Solution
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Ligand-gated ion channels, modulates cell excitability by allowing the flow of calcium and sodium ions into the cell. 
 
Located at the CNS in neurons and glia. 
Excess has resulted in schizophrenia, epilepsy, and mania 
Ligand-gated ion channels, strengthens synapses and involved in strong memory formation. 
 
Excess is associated with memory and learning impairments, psychosis, and excitotoxic brain injury 
Ligand-gated ion channels Functions as post synaptic inhibition by CI-influx 
 
Lack of...
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BIOS 252 COMP Exam Questions And Answers With Latest Set
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BIOS 252 COMP Exam Questions And Answers With Latest Set 
When compared to a classic lever system, the synovial joints of our Musculoskeletal system play the role of the _________? 
 
A. Weight 
B. Force 
C. Fulcrum 
D. Lever 
E. Resistance ANS C. Fulcrum. 
 
Which of the following event will occur when depolarizing graded potential's reach the membrane of the axon Hillock, causing its membrane potential to reach threshold? 
 
A. Ligand-gated Ca++ channels close rapidly 
B. Voltage-gated Ca...
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Regis College PSYCH 643 - All Weeks Quizzes - Questions with Verified Answers
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Week 3 Quiz 
#1 is C. 
1. Volume neurotransmission refers to? 
The diffusion of neurotransmitter to nearby neurons. 
2. Retrograde neurotransmissions refers to? 
The flow of neurotransmitter from postsynaptic neuron to presynaptic neuron 
3. Use the following CYP450 table to hypothesize drug interactions and their clinical 
significance for a patient on clozapine who carbamazepine, a mood stabilizer? 
Clozapine levels would decrease, placing the patient at risk for re-emergence of 
psychotic sym...
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NR546 Quiz reviews - Weekly Quiz review
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NR546 Quiz reviews - Weekly Quiz review 
 
 
 Propagation of an action potential to the axon terminal is mediated by voltage-sensitive sodium channels. Influx of sodium through voltage-sensitive sodium channels at the axon terminal leads to opening of voltage-sensitive calcium channels, also at the axon terminal. Influx of calcium through the open voltage sensitive calcium channels leads to docking of synaptic vesicles and secretion of neurotransmitter into the synapse.Agonists cause ligand-gate...
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Comprehensive Exam: BIOS255 / BIOS 255 (Latest Update 2024 / 2025) Anatomy & Physiology III with Lab | Test Questions & Answers | 100% Correct | Grade A - Chamberlain
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Comprehensive Exam: BIOS255 / BIOS 255 (Latest Update 2024 / 2025) Anatomy & Physiology III with Lab | Test Questions & Answers | 100% Correct | Grade A - Chamberlain 
 
 
 
Question: 
_____________ channels respond to changes in membrane potential. 
Answer: 
 Voltage-gated 
 
 
Question: 
Which of the following regulatory proteins covers the myosin-binding sites on actin? 
Answer: 
 Tropomyosin 
 
 
 
Question: 
Calcium must bind to which protein to initiate muscle contraction? 
Answer: 
 Tropo...
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