Depolarisation Study guides, Study notes & Summaries

LTP induction Exam Questions with Correct Answers What is LTP? - Answer-Long term potentiation (LTP) is a key form of synaptic plasticity that involves a sustained increase in the strength of synapses and is thought to play a fundamental role in the way we learn and store memories What are the key properties of LTP? - Answer-1. Input specificity 2. Co-operativity 3. Associativity What is input specificity? - Answer-Once induced, LTP at one synapse does not spread to other synapses; ra...

-RMPMost neurons have same basic structure - correct answer A cell body with a number of dendrites and one long axon with its terminals. What is the defining characteristic of neurons? - correct answer Have the property of electrical excitability • Ability to produce action potentials or impulses in response to stimuli • Have the property of electrical conductivity • Ability to propagate action potentials or impulses What is the function of different parts of neuron? - correct answer...

BHCS1002 2018/2019 Exam Questions with Complete Solutions what does the PR segment represent on the ECG? - ANSWER ventricular systole The membrane potential of any living cell is partially the result of: a) a transient increase in the membrane to sodium conductance b) a membrane that is leaky to sodium conductance c) a transient increase in the membrane to potassium conductance d) a membrane that is leaky to potassium conductance e) a membrane that is leaky to chloride conducta...

LTP induction Exam Questions with Correct Answers What is LTP? - Answer-Long term potentiation (LTP) is a key form of synaptic plasticity that involves a sustained increase in the strength of synapses and is thought to play a fundamental role in the way we learn and store memories What are the key properties of LTP? - Answer-1. Input specificity 2. Co-operativity 3. Associativity What is input specificity? - Answer-Once induced, LTP at one synapse does not spread to other synapses; r...

What are myofibrils? - Answer They are cylindrical organelles that run along the length of muscle fibres, they are the site of muscle contraction How are myosin and actin filaments arranged? - Answer In an alternating pattern in sarcomeres, thick myosin filaments overlap with the thin actin filaments at each end What is a pair of muscles called? - Answer An antagonistic pair What is the sarcolemma? - Answer The membrane of muscle fibres what is the mitochandria? - Answer ...

Nurs2102 Test Questions with Correct Answers Sinus Bradycardia - ANSWER <60 bpm, may result from increased vagal activity - may be asymptomatic Sinus Tachycardia - ANSWER >100 bpm, arises from enhanced automaticity in response to changes in internal environment paroxysmal supraventricular tachycardia - ANSWER is tachycardia of a sudden onset and termination. Initiated by re-entry loop in or around the AV node Atrial Flutter - ANSWER irregular beati...

NUR 231 EXAM QUESTIONS WITH VERIFIED ANSWERS Which factors psychological factors may increase a person's tolerance to pain - answerAnxiety A pain caused by a compressed nerve may be described as - answerBurning, shooting and tingling Which route of administration is best for patients with chronic stable pain? - answerOrally sustained released Which drug is considered to be a weak opiod used in moderate pain? - answerCodeine What is not considered to be a mechanism of action of opioid a...

HUBS1416 Practice Exam Questions and Answers Which of the following would be expected to inhibit the generation of an action potential? a) Inflammation of the myelin sheath b) Stimulating GABA receptors c) Blocking acetylcholine receptors d) Activating adrenalin receptors -Answer-b) Stimulating GABA receptors Which is true about neurons? a) At rest a neuron will have a negative membrane potential, due to it having more open K+ channels than Na+ channels b) Inhibitory neurons will relea...

AQA A Level Biology : Year 2- Nervous Coordination Graded A What is the value of the resting potential of a neurone? Why is the resting potential of a neurone negative? -70mV There are more positive ions outside the cell than inside How is the resting potential maintained? actively transports 3 Na+ out for ever 2 K+ into the neurone (ATP Hydrolysed) Sodium-potassium pump Membrane more permeable to K+ and less permeable to Na+ What happens if the sodium ion channels rema...

BTEC Applied Science Unit 9B: Homeostatic control of body systems. Homeostasis- The constant maintenance of a constant internal environment within an organism. One’s body needs to sustain its internal condition at certain levels to function. Homeostasis is called the preservation of internal conditions such as pH, temperature, and salt concentration in a stable equilibrium. Homeostasis is also known as a process of self-regulation by which an organism seeks to preserve equilibrium when ada...