Neurones Study guides, Class notes & Summaries
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fMRI/EEG QUESTIONS AND ANSWERS 2023
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fMRI/EEG QUESTIONS AND ANSWERS 2023 
How does fMRI work? 
When activity is taking place in a particular region of the brain, the neurones require oxygen. When an person lies inside an MRI machine, all of the protons in their body try to line up with the magnetic field. Protons in oxygenated blood are very organised in their spinning. However, deoxygenated haemoglobin molecules have magnetic field gradients that alter the spinning of nearby diffusion hydrogen nuclei. This less organised spinning ...
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Chapter 14: Nervous System Martin Caon Examination Questions and Answers in Basic Anatomy and Physiology Third Edition
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Martin Caon Examination Questions and Answers in Basic Anatomy and Physiology Third Edition 
 
Chapter 14: Nervous System 
 
14.1	Cells and Action Potential 
 
1.	Which word correctly completes the statement: “All motor neurons are…”? 
a.	Interneurons 
b.	Multipolar 
c.	Bipolar 
d.	Unipolar 
Answer is B: Motor neurones (that innervate muscles) are multipolar. 
 
2.	In the peripheral nervous system, which cells form the myelin sheath? 
a.	Ependymal cells 
b.	Schwann cells 
c.	Astrocytes 
d...
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NHS 111 Exam 2023 Questions and Answers
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What is the normal body temperature? - Answer- 37 degrees 
 
What symptom must be taken very seriously in a pregnant women? - Answer- A headache 
 
What does Neutropenic mean? - Answer- Low immunity 
 
What is sepsis? - Answer- A reaction to a infection causing the body to attack its own organs and tissues 
 
What is anaphylaxis? - Answer- Severe allergic reaction 
 
What is AAA? - Answer- abdominal aortic aneurysm 
 
What is rigor? - Answer- Violent shivering that occurs with a high fever that ...
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BTEC Applied Science Unit One Biology 128 Questions with Answers,100% CORRECT
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BTEC Applied Science Unit One Biology 128 Questions with Answers 
 
What is the function of the mitochondria? - CORRECT ANSWER cellular respiration 
 
What is the function of the ribosomes? - CORRECT ANSWER protein synthesis 
 
What is the function of the smooth endoplasmic reticulum? - CORRECT ANSWER Synthesis and transport of lipids and carbohydrates 
 
What is the function of the Golgi apparatus? - CORRECT ANSWER Modified and packaged proteins into vesicles for transport 
 
What is the functi...
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Homeostasis Past Paper Questions Study Guide 2023(100% Verified)
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Outline how a negative feedback mechanism works 
(4) Oct/Nov 2017 V1 - 1 change in factor away from, the norm / set-point 
2 detected / sensed by, receptor 
3 hormone released or (nerve) impulse sent 
4 (hormone / impulse) reaches, target organ / effector ; 
5 (effector) performs corrective action- counteracts change 
6 (factor) returns to, norm / set-poin 
 
Describe the role of the nervous system in the control of blood glucose concentration (4) 
Oct/Nov 2017 V1 - 1 hypothalamus detects cha...
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GCSE AQA Biology Homeostasis Practice Test Questions With Complete Solution
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GCSE AQA Biology Homeostasis Practice Test Questions With Complete Solution 
What is homeostatis? - CORRECT ANSWERS The regulation of the conditions in our body maintaining stable internal environment 
 
What does it do? - CORRECT ANSWERS Responds to any change in internal or external conditions 
 
What are the 3 main components in automatic control systems? - CORRECT ANSWERS Receptors, coordination centres and effectors 
 
Wh...
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BTEC Applied Science Unit 1 Biology Exam 118 Questions with Answers,100% CORRECT
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BTEC Applied Science Unit 1 Biology Exam 118 Questions with Answers 
 
Describe the function of the nucleolus - CORRECT ANSWER Produces ribosomes and RNA 
 
Describe the function of the cell wall - CORRECT ANSWER Provides rigidity and protection to the cell 
 
Describe the function of the chloroplasts - CORRECT ANSWER Site of photosynthesis as they contain chlorophyll 
 
Describe the function of the plasmodesmata - CORRECT ANSWER A channel through the cell wall the allows transport of materials ...
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AQA A Level Biology Paper 2 - Organisms Respond to Changes in Environments COMPLETE SOLUTIONS
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Draw the reflex arc. - ANSWER 
 
What is homeostasis? - ANSWER Homeostasis involves physiological control systems that 
maintain the internal environment despite changes in 
the external environment of an organism within restricted limits. 
 
What factors does our internal environment consist of? - ANSWER Temperature, water potential, pH and blood glucose levels, water levels, etc. 
 
Why is homeostasis important? - ANSWER If body temperature and blood pH change too much then enzymes will becom...
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AQA GCSE Biology Paper 2 Exam Questions with Verified Answers
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What is homeostasis? - ANSWER-The maintenance of a constant internal environment. 
 
What is a stimulus? - ANSWER-A change in your environment than requires a response. e.g Light, sound, touch, pressure, pain, chemical or temperature. 
 
What do the receptors do? - ANSWER-Detect the stimulus or change in environment. 
 
What happens after the receptors? - ANSWER-Receptors send messages to the CNS via the sensory neurone. 
 
What makes up the central nervous system? - ANSWER-The brain or spinal c...
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AQA A Level Biology : Year 2- Nervous Coordination Graded A
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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...
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