Rank the following neurons for their speed of conduction from fastest to slowest: Ranskik die volgende neurone in terme van geleidingsspoed van die vinnigste tot die stadigste: a. Myelinated 20 µm diameter axon / Gemiëliniseerde 20 µm diameter akson. b. Unmeylinated 20 µm diameter axon / Ongemiëliniseerde 20 µm diameter akson. c. Unmeylinated 200 µm diameter axon / Ongemiëliniseerde 200 µm diameter akson.

Q: Define autonomic nervous system (ANS)

A: The nervous system is the central processing unit of the body. It enables us to perceive and respond…

Q: Match the description with the statement that best describes the following regions e dendrites +…

A: Neuron:

Q: O Axon terminal O Dendrite O Neuroglia O Target cell O Synaptic cleft

A: This shows space between two neurons.  It is known as Synaptic cleft  The correct option would be…

Q: -)T/F Buffers cause abrupt and large changes in the pH of the body by releasing or binding H+ ions.…

A: A buffer is any substance that minimizes or reduces the change in the pH of a solution. Buffers…

Q: You are recording the electrical activity of a cell body with a resting membrane potential of -70…

A: Given; Resting membrane potential of the cell= -70mV No. of stimuli detected by the cell= 3 from…

Q: Match the letter with the correct structure. В H.

A: Introduction The given diagram is of a Typical Motor Neuron. Motor neurons are neuronal cells…

Q: The movement of sodim and potassium ions is an important part of how a neuron generates an action…

A: Action Potential Generation: The depolarization phase of an action potential is dependent on the…

Q: Place the following events in the correct order 1.depolarasatin reaches the nrve terminal…

A: A nerve impulse gets transmitted from one neuron to another neuron through junctions called…

Q: 15) Examine the diagram of a reflex arc shown below. In this case, pain from tissue damage to the…

A: In response to a stimulus, an action or a sequence which is unplanned and involuntary and nearly…

Q: structures in the following diagram of a neuron. ? Do it

A: A neuron is a specialized cell that is the basic unit of the nervous system. Neurons are responsible…

Q: system is affected? Select one: Oa. Type of Neuron Division of the Nervous System Interneuron PNS b.…

A: The nervous system is the portion of an animal's body that controls and transmits signals between…

Q: Synaptic vesicles are most commonly located: Select one: a. within presynaptic axon terminals b.…

A: The control and coordination of the body in humans occur by two systems- the nervous system and the…

Q: B. THE NEURON 1. The following roots and suffixes are used to Match each root or suffix with its…

A: Dendrite:branch(like that of a tree)Axon:axis(line)Soma:bodylemma:peel(covering)

Q: The following were extracellular recordings obtained from the giant nerve fibers of an earthworm…

A: The correct answer to this question is option A. To calculate the action potential conduction…

Q: 2. 3. 4. Describe the major divisions and subdivisions of the nervous system. Identify the following…

A: The nervous system in human body is an organ system that coordinates the functioning of all the…

Q: Use what you know about the physiology of neurons to answer the following questions. Treat questions…

A: Resting membrane potential is a state in which normally the neuron remains in, when there is no…

Q: identify the key type(s) of cell junctions present in this image (for example, tight junctions, gap…

A: The histological slice of human cerebral cortex tissue exhibits dark blue coloured nuclei scattered…

Q: After repolarization, the sodium ions are found neuron. This reversal of ions can be fixed by the…

A: Following an action potential and the subsequent repolarization phase, there is a temporary reversal…

Q: Wriich of the lollowing thuices correctly ills in the blanks? During repolarization, the sodium ions…

A: The process of generation of action potential is a complex process and it involves three main phases…

Q: Ordinarily, a neuron’s trigger zone is activated before any other part ofan axon, so a wave of…

A: Nerve cells are electrically excitable cells that method and transmits information by electrical and…

Q: When a neuron is at rest, the inside of the cell A has a slight negative charge relative to the…

A: Neurons Neurons also known as nerve cells, is the main functional unit of brain. It is a specialised…

Q: At rest, a neuron has a lower concentration of sodium than the surrounding fluid. When a neuron…

A: The nervous system is highly complex among different organ systems in animals. By transmitting…

Q: Axons can be extremely long and winding. What structural property allows them to maintain the…

A: The structural and functional unit of the nervous system is called a neuron. A neuron is composed of…

Q: Match the letters with the correct part of the neuron in the picture below: A B A V [ Choose ] Axon…

A: Neurons are connected to each other to make nervous system. Different external stimulus is sensed by…

Q: Which of these terms is correctly matched with its definition ordescription?a. depolarization:…

A: The cell membrane has a membrane potential associated with it. The electric potential outside the…

Q: Label name asap

A: The nervous system is essential for the control of various organs and, as a result, systems. The…

Q: The is morphological difference between bipolar neurons and unipolar neurons and that determines how…

A: As you are reading this book, think about the organs that are functioning within you right now! Your…

Q: Fluorescent FM dyes partition reversibly into biological membranes without penetrating through them.…

A: The fluorescent FM dyes can't pass through biological membranes as they are membrane-impermeable…

Q: If the neurotransmitter released by the presynaptic axon is dopamine and the diffusion distance…

A: Dopamine is a brain neurotransmitter that facilitates communication between individual neurons in…

Q: b 都

A: The neuron is the building block or fundamental unit of the nervous system. It is a relay system of…

Q: 3.) Signals are passed from axon to axon when neurotransmitter molecules are released from the…

A: Dopamine is a brain neurotransmitter that facilitates communication between individual neurons in…

Q: The blood brain barrier can be attributed primarily to which cell type? O Tight junction between…

A: We know that The blood-brain barrier (BBB) consists of a highly selective semi-permeable cell line,…

Q: Which of the following is not correct about myelin sheaths? Select one O A. They are formed by glial…

A: The myelin sheath is the protective layer around the nerves. It acts as an electrical insulator and…

Q: Give typed full explanation of both questions otherwise leave it  1) You generate action potentials…

A: An action potential is defined as a brief electrical impulse that travels along a neuron's membrane…

Q: a- Labél the nents When the axon is effectively excited, neuron 2 shows an action potential after…

A: For there are multipe questions, I will be answering the initial ones and if answers for all is…

Q: Place the following events in chronological order from 1-8: Nat enters the cell, and depolarization…

A: Neurons have the capability of generating and transmitting nerve impulses by transporting specific…

Q: In Greys type 1 and 2 synapses, Post Synaptic Densities are composed of __________ ________ ?…

A: The deposition of opaque substances on the cytoplasmic face of the postsynaptic membrane is a…

Q: A very high amount of 1 2 channels to open. There ions and calcium ions, as well as an efflux of 4…

A: Nerve impulses are transmitted through the neurons. The electrical charge distribution across the…

Q: Which of the following rows correctly completes the following statement about synaptic transmission?…

A: Synaptic transmission refers to the cellular communication process by which a neuron interacts with…

Q: 12) Label the parts of the neuron that are numbered below and indicate their general function: 3 25…

A: Label the parts of the neuron and describe their function.

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: Fill in the diagram, your illustration should demonstrate for each phase of the AP: 1. The relative…

A: Action potential (AP) occurs when membrane potential on a specific location of a cell rapidly rises…