White matter is , and gray matter is . a. comprised of axons; comprised of cell bodies and dendrites b. myelinated; unmyelinated c. found in the CNS; also found in the CNS d. All of the choices are correct.

Q: When a neuron is stimulated, sodium moves into the cell, causing the inside of the neuron to…

A: Neurons are the functional and structural units of the nervous system. These cells are capable of…

Q: As the strength of a depolarizing stimulus to an axon is increased, a. the amplitude of action…

A: The bodies of mammals are known for having the highest degree of complexity among all living…

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

A: Neuron:

Q: Which of the following is something that glia do NOT do? a. Synchronize activity of a group of axons…

A: The nervous system is a complex system comprising billions of neurons interacting with each other…

Q: The blood-brain barrier Select one: O A. allows action potentials to travel faster using saltatory…

A: The blood-brain barrier is an organized blood vessels and tissue that is comprised of firmly…

Q: The Na+/K+ ATPase pump is a. not required for action potential firing. b. important for…

A: Introduction  Chloride is the most abundant anion in the extracellular fluid. Along with Chloride…

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

A:

Q: For a second action potential to be fired an ......threshold must be reached......... the absolute…

A: An “action potential” occurs when the neuron is sending down an axon. It is an “explosion of…

Q: Repolarization of an axon during an action potential is produced by a. inward diffusion of Na+. b.…

A: A stage of action potential in which the cell undergoes a decrease in voltage, is known as…

Q: A neuron without an axon would be unable to     a. conduct nerve impulses     b. divide     c.…

A: A neuron is a structural and functional unit of the nervous system. It is capable of perceiving any…

Q: Schwann cells are a type of glial cell found in the nervous system. In addition to the conduction of…

A: Schwann cells are the major glial cells found in the peripheral nervous system (PNS). They provide…

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: 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: When a neuron’s resting potential is occurring, the neuron is __________ charged on the inside. a.…

A: Neuron is a cell present in the nervous system that is accountable for receiving and transmitting…

Q: Damage to the axons in the spinal cord is typically permanent and debilitating. One promising avenue…

A: Neuroglial cells are nonexcitatory supporting cells that are present in both central(CNS) and…

Q: The integrative functions of the nervous system are performed mainly bya. afferent neurons.b.…

A: The neuron’s functional classification is based on the direction the action potential travel to the…

Q: A neuron that carries information from the brain to a skeletal muscle is part of the _____.…

A: Neurons are the structural and functional unit of the central nervous system. Neuron can be sensory…

Q: Motor neurons and interneurons are neurons.a. pseudo-unipolar c. multipolarb. bipolar d. afferent

A: Since neurons relay signals between the brain and tissues and regulate their movement or behavior,…

Q: 32) In order for a nerve impulse to be transmitted across a synapse, a neurotransmitter must be…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Small gaps in the myelin sheath where the axon is exposed to the extracellular environment are…

A: The structural and functional units of the nervous system which are capable of sending and receiving…

Q: Which of the following is not a part of the periphrial nervous system (PNS)? a.somatic nervous…

A: Human have highly integrated neural system. It consists of central nervous system, peripheral…

Q: The sensory (afferent) division of the peripheral nervous systey B: transmits action potentials…

A: The nervous system has two parts: the central nervous system and the peripheral nervous system. The…

Q: nsistent or persistent synaptic firing in the CNS

A: A synapse is defined as a tiny gap through which a nerve cell or neuron can send impulses to another…

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: At an electrical synapse, presynaptic and postsynapticmembranes interface througha. neurofibril…

A: Gap junctions

Q: When the action potential begins, Na+ gates open, allowing Na+ to cross the membrane. The charge…

A: Membranes potential can be defined as the change in electric potential due to changes in the amount…

Q: Myelinated and unmyelinated neurons requires _________ to propagate action potential down the axon.…

A: Neurons are the electrically excitable cell in our body which communicate with the other cell by a…

Q: Areas of myelinated axons create the appearance of  _______ matter, while neuron cell bodies and…

A:

Q: Which of the following is (are) true about the myelin sheath? a. made of Schwann cells b. allow for…

A: We know that Oligodendrocytes in the CNS shield the axons of neurons. When an oligodendrocyte…

Q: Gray matter consists of... cell bodies, dendrites, and unmyelinated axons myelinated axons…

A: The central nervous system is composed of the brain and spinal cord, and the peripheral nervous…

Q: During the action potential, which of the following activity is LIKELY to occur? Select one: a. Na+…

A: An action potential (AP) occurs in physiology when the membrane potential of a given cell location…

Q: Where is the action potential generated initiated in the neuron? Select one: a. Nucleus of the…

A: The action potential is defined as the series of electrical changes that occur in membrane potential…

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: A stimulus causes a change in permeability of neural membranes, which begins the process of…

A: Action potential refers to the transitory change and propagation in the resting potential of the…

Q: “bark” of the brain is made

A: The brain is a complex organ composed of various types of cells, including neurons and glial cells.…