Q: Draw a neuron, label its parts, and describe the functions of these parts.
A: Neurons can be defined as neurones or nerve cells are know as the fundamental units of the brain…
Q: Which of the following would be contained within the central nervous system? Select one: a. a neuron…
A: Introduction The nervous system is formed of the nerves and cells, responsible for transmitting…
Q: Meningitis is a viral or bacterial infection of the brain. Which cell type is the first to have its…
A: Meningitis may be a condition that causes the tissues covering your brain and medulla spinalis to…
Q: The function of neuroglia is to a. carry messages from the PNS to the CNS. b. support and…
A: The control and coordination of the body are carried by the nervous system and hormonal system in…
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: What is the electrical current that travels along neurons called? A. Neurotransmitter B. Action…
A: For the functioning of the nervous system, sending and receiving signals by the neurons are…
Q: In the central nervous system, which of the following cells is thought to play a supporting role in…
A:
Q: How would severing an axon affect the flow of information in a neuron?
A: It sends signals to the surrounding tissue to be 'cleaned up' when an axon is destroyed by a laser,…
Q: Oligodendrocytes and Schwann cells generate a fatty substance known as a. glial. c. myelin. b. soma.…
A: Oligodendrocytes and Schwann cells (or neurilemma cells) are the non-neuronal cells of the nervous…
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: What are axons of neurons
A: Neurons are fundamental components of the nervous system and also the brain. These structures are…
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: _____relay messages from the brain and spinal cord to muscles and glands. a. Motor neurons c.…
A: BASIC INFORMATION NEURON It is the longest cell inside the human body It is found in the…
Q: a)Explain how the presynaptic cell "knows" when to release its neurotransmitter into the synaptic…
A: Neurotransmitters are often referred to as the body’s chemical messengers. They are the molecules…
Q: What is the function of the nervous system
A: Nervous system consists of specialized cells that are organized in groups, for the conduction of…
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: Compare and contrast the two main types of neural circuits in the central nervous system?
A: The neural circuit consists of a group of neurons that are interconnected through synapse formation…
Q: Predict what might happen if a disease caused the axons that transmit proprioceptive stimuli to lose…
A: Neurons are the functional units of the nervous system. It helps in transmitting signals throughout…
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: Name one kind of neuron that does not spike
A: The non-spiking neurons are known to transmit signals with the aid of graded potential. Non-spiking…
Q: Multiple sclerosis is a disease in which the immune system attacks and destroys the myelin sheath…
A: A white fatty substance is called myelin which is the protective coating of nerve cells. These…
Q: Where are afferent neurons, efferent neurons, and interneurons located in the nervous system? Are…
A: Neurons are the basic unit that consists of axons, dendrites, cyton, and telodendria for…
Q: function of a neuron is
A: The nervous system of human beings is composed of nerves and neurons.
Q: Understand the relationship between glial cells and brain tumors
A: The central nervous system (CNS) is composed of the brain and the spinal cord. The CNS collects…
Q: The two electrolytes most important in enabling nerves to respond to stimuli are? A. Chloride and…
A: Nerve impulses refers to an electrical or chemical signal that is transmitted along a nerve fibre.…
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: What structure is highlighted? A. Schwann cell B. Cytoplasm of Schwann cell C. Myelin sheath D.…
A: Schwann cells refer to the chief neuroglia of the PNS (peripheral nervous system). Neuroglia or…
Q: Differentiate between Dendrites and axons.
A: The network of nervous system consists of brain, spinal cord and nerves. The nervous system plays an…
Q: How can you tell the difference between a dendrite and an axon
A: Neurons are the fundamental units of the nervous system. Neurons are also known as nerve cells.…
Q: In one to two sentences name and describe the three parts of the neuron.
A: The neuron consists of three major regions: Cell body or Soma: It is the core of the neuron, has the…
Q: How do neurons communicate with one another? A. Electrically B. Chemically C. Through weak,…
A: Neurons are cells within the nervous system. They transmit information to other nerve cells, muscle,…
Q: The opening through which neuron communicates with another neuron is called
A: Neuron is the basic structural and functional unit of nervous system
Q: Match the parts of a neuron with the correct function.
A: Neurons are specialized cells that form the basic building blocks of the nervous system and brain,…
Q: PART II: STRUCTURAL CLASSIFICATION OF NEURONS. Familiarized the type of neurons classified based on…
A: Answer: Introduction: Nerve cells or neurons are the structural and functional units of the nervous…
Q: What occurs when a stimulus depolarizes the membrane of a neuron?
A: Depolarization occurs when a sensory signal is acknowledged in the periphery and is stated as the…
Q: Name the structure that the arrow is pointing at? A. Dendrite B. Axon hillock C. Cell body D.…
A: NEURON It isthe basic most structure of the nervous system. These are the cells within the nervous…
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: Draw a neuron then use the different documents of the activity to determine on the figure the…
A: The structure of neurons: Nerve cells or neurons are the structural and functional units of the…
Q: what the difference between the afferent and efferent divisions of the peripheral nervous system
A: Peripheral nervous system (PNS) is a division of the central nervous system (CNS). It consists of…
Q: Which statement about how neurons develop and connect in different species is FALSE?
A:
Q: Explain what is represented in the image (neuron) in five sentences or less
A: Neuron It is the cell which can carry stimulus in the form of electrical impulses to the brain and…
Q: The part of a neuron that contains the nucleus is the a. cell body b. dendrite c. axon d. glial
A: A neuron is the cell that makes up majority of the central and peripheral nervous systems in the…
Q: The gap between two neurons is called……?
A: Neurons are nerve cells responsible for transferring signals in the form of chemical and electrical…
Q: In the sympathetic nervous system, which of the following prevents apoptosis? A. Steroid hormones B.…
A: There are different biomolecules present in humans. They include carbohydrates, lipids, proteins,…
To which part or parts of a neuron does the all-or-none law apply? a. Axons b. Dendrites c. Both axons and dendrites
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- Lidocaine is an anesthetic that is used to prevent the propagation of action potentials. Which compartment would lidocaine MOST likely target? A. axon B. dendrite C. soma D. synaptic cleftWhich of the following insulates and protects a neuron’s axon, as well as helps speed along electrical impulses? a. synaptic knobs c. myelin sheath b. receptor sites d. neuromodulatorsA neuron without an axon would be unable to a. conduct nerve impulses b. divide c. receive stimulation from other neurons d. store genetic material
- When a neuron is inactive, more of which of the following exist OUTSIDE the neuron? A. Myelin sheaths B. Positive ions C. Neuropeptides D. Negative ions33) What part of a neuron is responsible for receiving information?a. Axon.b. Node of Ranvier.c. Dendrite.d. Myelin sheath.The nerve impulses always travel in one direction from dendrites to axon terminals. What prevents an action potential from travelling backward? a. Hyperpolarization of the neuron makes the membrane more positive and prevents another action potential. b. After repolarization, the refractory period occurs, where the sodium ions are found outside the cell. c. After repolarization, the reversal of ions prevents another action potential as there would not be enough sodium ions outside the cell to rush in. d. The refractory period prevents another action potential by lowering the threshold potential.
- A neuron may receive signals from thousands of synaptic terminals. What determines whether the receiving neuron will respond by transmitting a signal? a. the concentration of transmitter inside the receiving neuron b. the summation of excitatory and inhibitory signals received c. the number of glial cells contact the receiving neuronThe axon hillock of a neuron reaches the threshold of excitation and the membrane potential becomes completely reversed. Then, suddenly, the membrane potential begins to return to resting membrane potential. What is the event that triggers this return to resting potential? A. Na+ channels close in a voltage-dependent manner B. Na+ channels close in a time-dependent manner C. Na+ channels close in a chemically-dependent manner D. Na+ channels open in a voltage-dependent mannerMatch the neuron part on the left to its description on the right. (1) dendrite A. a cell process that sends information (2) axon B. one of usually several cell processes that receive information (3) cell body C. the rounded part of a neuron
- A(n) ________ neuron has one axon and one dendrite extending directly from the cell body. a. unipolar b. bipolar c. multipolar d. pseudounipolarThe two-neuron chain allows increased communication and control of the effector organ. A. True B. FalseOn what part of the neuron are NT receptors typically located? If the activated NT receptors cause channels to open or change thus changing the diffusion of ions, what type of potential will this initially produce? A.Resting B.Graded C.Action D.Homeostatic