What structure is highlighted? A. Schwann cell B. Cytoplasm of Schwann cell C. Myelin sheath D. Myelinated axon E. Unmyelinated axon

Q: a.Would an action potential travels faster in an axon with a wide diameter or a small diameter? b.…

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

Q: A(n) ________ neuron has one axon and one dendrite extending directly from the cell body. a.…

A: Neurons are the basic structural and functional unit of the nervous system that consists of cell…

Q: Suppose axon A enters a ganglion (cluster of neurons) and axon B leaves on the other side. Shortly…

A: A ganglion is a group of neuron cell bodies in the peripheral nervous system of the Human Nervous…

Q: which of the following does not describe the somatic nervous system? A.  motor neurons that…

A:

Q: Another name for the axon of a neuron is:- a. nerve fiber. b. neurofibril. c. neurilemma. d.…

A: Answer- Neuron is the main cell of the nervous system that helps in conduction of nerve impulses or…

Q: Choose the best answer for following question: Which of the following neuron parts receive(s)…

A: Introduction  A neuron is a single nerve cell which consists of central cell body, terminal axon…

Q: Where does saltatory conduction occur? Select one: a. From node to node in unmyelinated fibers b.…

A: saltatory conduction in normal term means propagation/movement of action potential from one node of…

Q: The myelin sheath is produced around axons in the PNS by (a) ganglia (b) neuron cell bodies (c)…

A: MYELIN SHEATH It is an insulating layer that forms around nerves, including those in the brain and…

Q: Which of the following would increase the speed of a nerve impulse along an axon?A. Decreasing the…

A: The Speed of conduction of nerve impulses is increase by the presence of a myelin sheath . The…

Q: What two types of macromolecules are the main components of myelin? a. carbohydrates and lipids b.…

A: The nervous system is made up of two main types of cells - neurons and the neuroglia. Neurons are…

Q: What evidence led Sherrington to conclude that transmission at a synapse is different from…

A: The communication between one neuron and the next differs from the communication along a single…

Q: When a neuron is inactive, more of which of the following exist OUTSIDE the neuron? A. Myelin…

A: Neuron is the fundamental unit of brain and nervous system. Neurons transmit signals from brain to…

Q: I. These forms the specialized junctions called synapse. A. Cell body B. Glial cells C. Synaptic…

A: Introduction :- The point of transmission of electric nerve impulses between two nerve cells…

Q: Neurotransmitters are released by_____ . a. axon terminals c. dendrites b. a neuron cell body d.…

A:

Q: During the Refractory period of the action potential, the neuron will: Select one: O a. Not respond…

A: Nerve cells or neurons are excitable cells of nervous system. A typical neuron consists of cell body…

Q: Most human axons have a myelin sheath that_____ . a. prevents action potentials from moving backward…

A: The complex body of human being functions in a systemic and coordinated way, and this…

Q: Which of these do dendritic spines do?A. They synthesize proteins.B. They increase the surface area…

A: Neuron, the relay apparatus of the body, helps to transmit the chemical and electrical impulses or…

Q: are found primarily in the white matter A. myelinated axons B. neuron cell bodies C. unmyelinated…

A: White matter and grey matter are the structural components of brain and spinal cord. White matter is…

Q: Compare the signal conduction speed in myelinated fibers versus unmyelinated ones. Why aren’t all…

A: Ans: Myelination: In this process the fatty sheath which surrounds neuronal process as well as…

Q: The region where an axon connects to its own cell body is called the A. soma B. hillock region C.…

A: ANSWER. B) Hillock region Explain;-   The axon hillock is a specific piece of the cell body (or…

Q: Match each glial cell with its function + Schwann cells A. Help circulate cerebrospinal fluid *…

A: 1. B.Form myelin in the PNS 2. A Help circulate cerebrospinal fluidi

Q: Match the types of neuroglia to their functions. (1) ependymal cells (2) oligodendrocytes (3)…

A: Introduction Glial cells or neuroglia are cells apart from Neurons in both CNS and PNS which carry…

Q: Cells found in the choroid plexuses that secrete cerebrospinalfluid area. astrocytes. d.…

A: The transparent fluid that encompasses the brain and spinal cord is known as cerebrospinal fluid…

Q: What guarantees that there are unidirectional action potential? A. threshold B. depolarization…

A: Action potential generates when the neurons want to pass the information along the body from its…

Q: How do oligodendrocytes myelinate axons and how does this differ from myelination by Schwann cells

A: Myelination Myelin is a lipid-rich protective insulating layer present around the nerve cell axons.…

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: Why are certain cells in the entorhinal cortex called grid cells?A. They respond to locations…

A: The entorhinal cortex (EC) is a zone of the brain located in the medial temporal lobe and plays a…

Q: To which part or parts of a neuron does the all-or-none law apply? a. Axons b. Dendrites c. Both…

A: Neurons are the basic unit of the nervous system. They are involved in the generation and…

Q: Suppose you want to cause the presynaptic terminal of an axon to release its transmitter. How could…

A: Synapse was name given by Sherrington. Synapse is junction between two neurons where information is…

Q: Neurotransmitters must pass from an axon terminal to the next dendrite by crossing a fluid-filled…

A: Neurons facilitate communication in the brain. A neuron is made up of dendrites (receives…

Q: If your index finger had to be amputated as a result of a freak what would happen to your S1…

A: Introduction S1 somatotopic maps refers to spatial patterns within the functional organization of…

Q: Where do some Glial Cells come from? a. The Amygdala b. Thalamus C. Hippocampus d. Inter Neurons…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Which of the neuroglial cell types shown form myelin sheaths within the CNS? OA Ов Ос F

A: Neuroglial cells Neuroglia or glia or glial cells are non-neuronal cells present in brain and spinal…

Q: Heidi’s physician prescribed a medication that is known to block the reuptake of serotonin…

A: A neurotransmitter is a chemical messenger that transmits signals from one neuron to other or to the…

Q: are found primarily in the Grey matter A. unmyelinated axons B. neuron cell bodies C. Interneurons…

A: The central nervous system is composed of white matter and Grey matter. White matter is the paler…

Q: Which statement is true? Select one: a. All axons, dendrites, and cell bodies are myelinated b. Some…

A: Neurons are called as the structural and functional unit of the nervous system as they receive and…

Q: Lidocaine is an anesthetic that is used to prevent the propagation of action potentials. Which…

A: The neurons are the nerve impulse generating and transmitting cells in our nervous system that have…

Q: Many neurons have only a single axon, but many terminals at the end of the axon. How does this end…

A: Neurons or nerve cells that carry out the functions of the nervous system by conducting the nerve…

Q: During saltatory conduction, action potentials are generated: a. along the entire length of the…

A: A neuron is the functional unit of the nervous system. Neurons are excitable cells that transmit…

Q: Ganglia are ... a) ... collections of nerve cell bodies outside the CNS b) ... part of a nerve cell…

A: Ganglia are ovoid designs containing cell assemblages of neurons and glial cells upheld by…

Q: What effect could the destruction of the myelin sheath have on nerve impulses? Select one: a. The…

A: Nerve impulses A nerve impulse is an electrical signal that is transmitted along the nerve fibres.…

Dissection

Dissection is the process of cutting up the tissue of a dead or live animal or plant, to do anatomical studies and surgical treatments. The purpose of dissection is to learn more about the overall structure of organs and organ systems and thereby understand the physiology of the organism.