Leak channel - Guides d'étude, Notes de cours & Résumés

Neuron Structure - dendrites, cell body, axon dendrites - short, highly branched signal receptive regions of the nerve cell. Convey incoming message toward cell bodies each nerve cell (neuron) has only one - axon axon - impulse generating and conducting region of neuron myelin sheath - Whitish fatty protein layer that protects and electrically insulates the axon. Increases the speed of transmission of nerve impulses myelin sheath is only associated with - axons, not dendrites what determ...

enhanced artifact - ANSWER The failure to remove electrode paste residue will MOST likely result in: a. discarded electrodes. b. enhanced artifact. c. improved detergent selection. d. improvement in adherence. Initiate emergency response system - ANSWER The most appropriate action a technologist would take when there is confirmed ventricular tachycardia lasting greater that 30 seconds is: a. Initiate emergency response system b. Assess, document and continue to monitor c. No immediate ...

What are sphingomyelins? - Sphingolipids where the head group is phosphocholine or phosphoethanolamine. What prevents cells from actually swelling? - It is effectively impossible for sodium to enter the cell (due to pump and lack of sodium channels). There is a high sodium ion concentration outside the cell which prevents water from entering in the cell Why would cells have a tendency to swell? - Because cytoplasm contains negatively charged proteins that cannot exit, so cells naturally ga...

CCHT PRACTICE TEST LATEST UPDATE GRADED A+ 1.Which of the following best describes the reason for wearing gloves when handling machine prior to blood? a) patient comfort b) asepsis c) universal precautions d) HIV c) universal precautions 2 You test for sterilant levels in a hemodialysis machine prior to patient use. The test is positive for sterilant. This means the machine: a) is sterile & bacteria free b) needs further rinsing c) needs more sterilant d) is in conductivity b...

CBNS 120 FULL PROBLEM SET QUESTIONS AND ANSWERS, GRADED A+/ VERIFIED. The slow AHP (after-hyperpolarization lasting for tens of milleseconds to seconds) results from: - -Calcium Activated gK In the Hodgkin-Huxley squid axon experiments, the late outward current could be isolated by: - -B & C Only (treating the axon with TTX (tetrodotoxin) & Stepping the membrane potential to the Na equilibrium potential) At threshold for the action potential: - -The outward leak K current equals the i...

NUR968: Membrane Potentials & Action Potentials; Cell Signaling & Second Messenger Systems Practice Questions and Answers What is the membrane potential? - Ans:-Defined as the electrical potential difference across a cell's plasma How are ions classified? (2) - Ans:-1. Cations (positively charged) 2. Anions (negatively charged) Although all positive & negative charges establish membrane potential, what are the 2 key players (ions)? - Ans:-1. Sodium 2. Potassium True or false: The n...

ARDMS (RVT) Ultrasound Vascular Registry Review Questions with 100% Correct answers Ultrasound Vascular Registry Review Questions with 100% Correct answers What is the first branch of the aortic arch? Innominate artery/ Brachiocephalic Name the three branches of the aortic arch? a. Innominate artery/ Brachiocephalic b. Lt CCA c. Lt Subclavian artery The radial artery runs on what side of the forearm? Lateral side The radial artery branches to form what part of the palmar arch? Supe...

Most prokaryotes require water availability (aw) to be greater then? ~ aw>0.91 Aquaporins ~ channel proteins that facilitate the passage of water (protect against osmotic stress) Halophiles ~ salt loving mechanosensitive channels ~ pressure sensitive channels that leak solutes from the cell, lowering cytoplasmic osmolarity Acidophiles ~ grow best in acidic habitats pH homeostasis ~ K+/H+ (acid) or Na+/

ap chpt 11know fig 11.1 - correct answer 11.3 - correct answer 11.5 - correct answer The resting membrane potential is maintained by Na+-K+ pumps that actively transport ? into and ? out of the cell. The membrane is more permeable to ?. The concentration of ? is higher outside than inside the cell. The concentration of ? is higher inside than outside the cell. - correct answer 1. k+, na+ 2. k+ 3. Na+ 4. k+ Ions are unequally distributed across the plasma membrane of all cell...

RPSGT EXAM MOCK QUESTIONS AND ANSWERS 100% PASS enhanced artifact - Correct Answer ️️ -The failure to remove electrode paste residue will MOST likely result in: a. discarded electrodes. b. enhanced artifact. c. improved detergent selection. d. improvement in adherence. Initiate emergency response system - Correct Answer ️️ -The most appropriate action a technologist would take when there is confirmed ventricular tachycardia lasting greater that 30 seconds is: a. Initiate emerg...