Depolarisation Study guides, Class notes & Summaries

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 ...

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...

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...

HUBS 191 Progress Test 1 Questions and Correct Answers.214 Questions and Answers. Complete Solution Updated 2024/2025. What makes up the axial skeleton? skull, vertebral column, rib cage What is recruitment? activating more motor units to make more force What are flat bones? Thin plates of compact bone - some cancellous What are flat bones used for? protection and muscle attachment What are irregular bones? Variable in shape size and function What is depolarisation? Membrane potent...

BTEC Applied Science Unit 5 Exam 105 Questions with Answers Function of the Right Pulmonary Artery - CORRECT ANSWER Carried deoxygenated blood to the right lung Function of the Aorta - CORRECT ANSWER Carries oxygenated blood from the left ventricle to the rest of the body Function of the Left Pulmonary Artery - CORRECT ANSWER Carries deoxygenated blood to the left lung Function of the Left Pulmonary Vein - CORRECT ANSWER Carries oxygenated blood to heart from left lung Function ...

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...

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...