Q7. What factors increase the spe of nerve impulses in the nervous Fystem? Select ONE: . The length and thickness of axo p. The presence of myelin sheaths and thickness of axons . The presence of white and grey matters d. The presence of myelin sheaths and length of axons

Q: Rank the following neurons for their speed of conduction from fastest to slowest: Ranskik die…

A: Brain is the main center for receiving the impulses from different parts of the body and sending…

Q: Describe the 6 step sequence of events that occurs at the NMJ in response to a nerve Action…

A: Steps:- The sarcolemma initiates the action potential. 2)The axon terminal receives the action…

Q: 4. a) In the diagram below, decide which side represents the inside of the axon and which represents…

A: Neurons are the key units of the nervous system in an organism. It is responsible for conducting…

Q: What event triggers an action potential?a. Opening of sodium channelsb. Opening of delayed potassium…

A: 1- Opening of delayed potassium channels 3-High concentration of negative ions outside the cell.…

Q: Identify whether the statement is TRUE or FALSE   1. The tightly packed coil of neurolemmocyte…

A: In the peripheral nervous system, the principal glial cells are known as schwann cells. The…

Q: 22

A: Motor neurons are components of peripheral nervous system which conduct efferent impulses from the…

Q: 4. What does this diagram represent? Cau Dend

A: The nervous system that functions in the body to regulate other body systems has neurons as its…

Q: toxin creates pores that are permeable to Ca2+. Describe its immediate effect on the resting…

A: Action potential the action potential is defined as the rapid rise and fall in the membrane…

Q: 6. You are interested in how the density of NMDA receptors in the postsynaptic membrane prior to…

A: NMDA is the N-Methyl-D-aspartic acid or it is also called N-Methyl-D-aspartate. It is an amino acid…

Q: Reflex arc A role. Section of the nervous system Central nervous system B Peripheral nervous system…

A: The neural system, often known as the "nervous system," is a complex network of neurons that have…

Q: 7. How do ion channels, transport mechanisms, and permeabilities help to determine resting…

A: The resting membrane potential of a cell is largely determined by the concentrations of various ions…

Q: . Discuss the function of the myelin sheath and describeits formation in the CNS and PNS.

A: The nervous system is a part of body that consists of brain, spinal cord and sensory organs along…

Q: People who inherit familial periodic paralysis often develop very low blood potassium…

A: A cell membrane is frequently polarised or electrically charged. In comparison to the outside, the…

Q: 1. Describe the role of differential electrical charge across the cell membrane in both non-…

A: Definition: -  Membrane potential or Transmembrane Potential is a the difference of electric…

Q: Refers to the temporary time in which a neuron cannot be stimulated resting potential O refractory…

A: refractory period.

Q: Name the six types of cells that aid neurons, and state their respective functions.

A: Neurons are the primary cell type in the nervous system, and they are responsible for transmitting…

Q: Question 1 Weak depolarization of a postsynaptic neuron leads to: [Select] AMPA receptors, [Select]…

A: When presynaptic neuron receives a weak electrical stimulation, it releases glutamate in moderation.…

Q: t is an EPSP? An IPSP? Define Summation. Distinguish between spatial & temporal summation or explain…

A: Neurons transmit information electrochemically where the chemicals lead to generate an electrical…

Q: Compare graded and action potentials are similar and different.

A: The nervous system establishes its function by the means of neurons or nerve cells that aid in the…

Q: Describe the various division of human Nervous system. Draw and describe the various parts of a…

A: The nervous system is the part of physiology that controls and coordinates all body movements i.e…

Q: Which of the following statements about postsynaptic potentials (PSPs) strength is correct?  a.…

A: Neurons are the basic structural and functional unit of the brain(central nervous system). These…

Q: a. If one increased the extracellular concentration of K+ around a neuron, what would happen to the…

A: Resting membrane potential is negative because the negative charge is present inside the cell which…

Q: 16. Briefly compare the sympathetic and parasympathetic divisions of the autonomic nervous system.…

A: The nervous system is divided into 2 types: 1. Central nervous system 2. Peripheral nervous system…

Q: Identify the nervous tissue component linked to the following terms and phrases

A: The nervous system is derived from ectoderm. The nervous system consists of neurons and neuroglial…

Q: Matching (may not use al choices; may use some choices more than once) Sección 79. Site of action…

A: The communication of neurons with each other take place with the help of brief electrical signals…

Q: Complete the hierarchy of the parts and divisions of the nervous system

A: The nervous system is a vital system within an animal's body that coordinates signals to make proper…

Q: 5. Which one of the following responses is most likely to occur when the body temperature of a…

A: Whenever the body's temperature falls below 95° F (35° C), hypothermia sets in. The average body…

Q: please explain

A: Introduction: A membrane's voltage varies rapidly in a series known as action potentials. The…

Q: The three types of neurons in the nervous system of humans are O synaptic neurons, motor neurons,…

A: Neuron Also known as nerve cell. It is an electrically excitable cell that processes and transmits…

Q: The part of the neuron that is usually highly branched and receives input from other neurons is the…

A: Neurons are a particular form of cell that carry information messages or signals to and from the…

Q: In a nerve cell, the function of the myelin is to Group of answer choices 1. increase the speed at…

A: A nerve cell, also known as a neuron, is a specialized cell in the nervous system that transmits…

Q: 42. List and explain the features that lead to the differences in nerve impulse conductance in a…

A: A nerve is a part of the peripheral nervous system. It facilitates communication between the central…

Q: 4. Draw and label graph showing the changes in membrane potential during a nerve impulse

A: The plasma membrane of the cell is selectively permeable for different ions that results in the…

Q: 28. The insulating structures of the neuron are collectively called the the cells which form this…

A: Answer: The insulating structure of the neuron are collectively called the - B. Myelin sheath. The…

Q: Subject: Neurophysiology  Batrachotoxin OPENS Na+ channels.  If this is added to a bath solution in…

A: The membrane potential is a minor differential in electrical charge that exists across the cell…

Q: What are the two kinds of postsynaptic potentials

A: Synapse is a joint in which two neurons are in contact with each other and easy transfer of impulse…

Q: the role of ion channels in the initiation of neuronal

A: Introduction:- Trafficking of small charged molecules (ions) through the cell membrane of neurons…

Q: 4. From the list of terms that follow, please label the figure (at least once) below accordingly:…

A: Electrical and biochemical signals are used in conjunction by nerve cells, or neurons, to…

Q: 1. Write the differences between the autonomic nervous system and the somatic one. Somatic nervous…

A: Introduction The somatic nervous system includes cranial nerves except optic nerve. The autonomic…

Q: explain the function of the nervous system

A: Nervous system is one of the 12 body system that is divided into :-  I ) Central Nervous system  II…

Q: Summationa. is caused by combining two or more graded potentials.b. occurs at the trigger zone of…

A: The action potential is the temporary shifts in the potential of the neuronal membrane which results…