Which cuis insulate axons witho Myclin in the CNS? in the PNS?

Q: Outline two mechanisms by which information flowbetween two neurons in an adult can increase.

A: Neurons are the structural and functional units of the nervous system. The flow of information from…

Q: How a presynaptic neurone is adapted for the manufacture of neurotransmitter?

A: Synapse is the junction between the two neurons. Information from one neuron goes to another neuron…

Q: How can the levels of neurotransmitter in the synaptic cleft be regulated?

A: The synaptic cleft is a gap of roughly 20 nm between the pre- and postsynaptic cells at a chemical…

Q: How does the nervoussystem get information aboutthe external environment, theorgans and the tissues?

A: The nervous system of an organism is quite complex network that is responsible for coordinating…

Q: Which type of glial cell supports neurons and blood vesselsand promotes formation of the blood-brain…

A: The cells that surround neurons and provide insulation to them are called glial cells. Glial cells…

Q: Which is TRUE about typical, resting neurons? O The plasma membrane is most permeable to sodium…

A: Membrane potential is the electrical potential gradient that establishes between the interior and…

Q: This cell provides myelination within the centrallnervous system, allowing for. speed of conduction…

A: The nervous system consists of neurons and neuroglia. Neurons are the basic structural and…

Q: How are APs generated in the presynaptic neurone

A: The neurons are the specialized cells of the human nervous system. They have a special ability to…

Q: Describe the most common excitatory and inhibitory neurotransmitters in the CNS.?

A: Neurotransmitters are chemical messengers that transmit a message from a nerve cell across the…

Q: Where do fibrous astrocytic processes contact the axonal membranes in the CNS? The internode The…

A: Fibrous astrocytes are are a type of glial cells found through out the brain's white matter in the…

Q: Explain the functional classification of the nervous system.

A: The transmission of impulses in the body is mediated by the nervous system. Neurons are the nerve…

Q: Synaptic transmission s terminated    by :-a- block of pretsynaptic receptorsb- elevation of Ca ++…

A: The biological process by which a neuron communicates with a target cell across a synapse is called…

Q: Why do neurons in the PNS regenerate but not in the CNS and under which circumstances might they…

A: The Peripheral nervous system (PNS) corresponds to regions outside the brain and spinal cord of the…

Q: What are the similarities and differences of autonomic and somatic nervous system in terms of…

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

Q: What is saltatory conduction? O The conversion of an electrical impulse into a chemical signal at an…

A: Electrical signals are conducted through electrically excitable nerve cells. The movement of ions…

Q: Which Cells insulate axıns with Myctin in the Cuts.?

A: The nervous system controls our body movements, our response to outer stimuli, etc. It is a highly…

Q: Where does an axon potential begin on an axon? O the action-potential initiating hillock (APIH) O…

A: The nervous system composed of two cells - neurons and neuroglia. Neurons are the nerve cells which…

Q: Which of the following Glial cells plays an important role in the formation of the…

A: Glial cells constitute all of the cells which support and assist nerve cells in their normal…

Q: What is the mechanism bywhich the neural impulse istransmitted along the axon?

A: Communication between neurons is achieved at synapses by the process of neurotransmission. To begin…

Q: What are the major types of glial cells in the adult vertebrate and describe the ways in which they…

A: Glial cells forms an integral part of the human nervous system that help to support and nourish…

Q: 22. Write a short note on electrical synapses?

A: The nervous system's functionality is dependent on the passage of information through chains of…

Q: All afferent signals travel what direction? O None of these is correct O Toward a muscle Toward the…

A: All afferent signals travel towards central nervous system.

Q: The CNS receives information about changes affecting internal organs through sensory inputs…

A: The CNS receives information about changes affecting internal organs through sensory inputs…

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: What is the autonomic nervous system and what activities distin-guish it from the somatic nervous…

A: The nervous system comprises the peripheral and central nervous system (CNS).

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: What physiological activity occurs at the pointed structures? O Myelination O Hyperpolarization…

A: Nerve cells are the structure that is responsible for transmitting electrical signals called "nerve…

Q: Which are the structuresthat are part of the nervoussystem?

A: Introduction  Nervous system is the main controlling centre of the body which controls all voluntary…

Q: How fo nerve signals travel up and down the spinal cord?

A: The nervous system is responsible for controlling all the voluntary and involuntary functions of the…

Q: Which relays instructions from the CNS to muscles more quickly, the somatic nervous system or the…

A: The nervous system in humans is an evolutionary and adapted organ system comprised of two primary…

Q: If a person had no ependymal cells, then he/she could not filter the blood arriving at the neurons…

A: Ependymal cells are neuronal supporting cells which make up the epithelial lining of the cavities…

Q: What is the function of the axon? to receive information and information into the cell body to store…

A: The neuron is the functional unit of the nervous system. The neurons send and receive signals from…

Q: How can the sympathetic axons stimulate so many effectororgans simultaneously?

A: The nervous system is made up of the central nervous system and the peripheral nervous system: The…

Q: What are some differences in the way axons are myelinated inthe PNS versus the CNS?

A: Myelin is a lipid-rich (fatty) material that covers nerve cell axons (the nervous system's "wires")…