Gustatory neurons are stimulated by_____which causes the opening of____gated ion channels. These cell fire______

Q: The figure illustrates the receptive field of an OFF-center ganglion cell under different light…

A: There are two sorts of ganglion cells: ON-center and OFF-center. An ON-center cell is stimulated…

Q: Action potentials ____. Select one: A.can occur only once B.can move up or down an axon, away from…

A: Nervous system is the interconnection of neurons. They carry the message from one place and send to…

Q: Let's say you are at the dentist and you need numbing, so Lidocaine is used. Ahhh, you feel nothing.…

A: Anesthesia is used to block pain sensations. It is of two types namely local and general. Local…

Q: The part of a Schwann cell that contributes to the myelin sheath is the _______________, and the…

A: Schwann cells are a kind of glial cell present in the peripheral nervous system (PNS). There are two…

Q: In the dark, photoreceptors ar and ON bipolar cells are spiking releasing GABA hyperpolarized…

A: Photoreceptors, as the name implies are the cells that respond to light (Rods and Cones). They are…

Q: To maintain ________ action potentials are sent through ______ neurons.

A: Introduction  The fast rise and fall of the membrane potential at a particular cell site is known as…

Q: What characteristic distinguishes dendrites from axons?a. Presence of branches at the tipsb.…

A: Introduction: The structural and functional unit of the nervous system is a nerve cell or neuron. It…

Q: Neurons always ____________________.   have myelination around the axon.   have multiple…

A: Neurons or nerve cells are the basic functional unit of nervous system. It consist of following…

Q: An influx of positive sodium ions causes opening of the activation gates of voltage regulated sodium…

A: VOLTAGE GATED SODIUM CHANNELS These are integral membrane proteins that change conformation in…

Q: Stimuli such as light or sound are not detected directly by neurons. Explain why this is true.

A: Receptors are sensory nerve endings that terminate in periphery as bare unmyelinated endings or in…

Q: If a somatic motor neuron fires an action potential, then ________.     acetylcholinesterase is the…

A: Somatic motor neurons originate in the central nervous system. The somatic motor division sends…

Q: A stronger stimulus means that the action potentials traveling down your nerves will have a higher…

A: Nerve is a complex structure comprising of a collection of neurone, blood vessels, lymph vessels and…

Q: A sharp immediate pain is probably carried by a/an:   C fiber with thin diameter and without…

A: Introduction: Nociceptors can be defined as sensory receptors that send signals that cause pain…

Q: Match the numbers in Figure with the description of what is happening as the sensory neurons,…

A: graded potential starts in a sensory receptor in the skin  At the first synapse , a presynaptic…

Q: Action potential frequency in phasic receptors with a prolonged stimulus in tonic receptars with a…

A: The sensory system is composed of sensory receptors that are present at the peripheral ending of the…

Q: terval. Neurons in the ____________ in the _____________ respond best to the form and shape of…

A: Neurons are outlined as brain cells that are principally accountable for carrying the nerve impulses…

Q: Suppose researchers find that axon A can produce up to 1,000 action potentials per second (at least…

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

Q: A neurotransmitter binds to a ligand-gated Ca2+ channel. This would result in ___ in the…

A: The chemicals responsible for the communication or transmission of signals via a synapse are called…

Q: Since all APs generated by a given nerve fiber have the same magnitude, how does the CNS “know”…

A: The generation of an action potential is an " all or none phenomenon". An action potential will only…

Q: Fill in the blanks with the correct term chosen from the following: afferent motor effectors…

A: Introduction: When an individual incidentally contacts a hot substance in the oven while cooking…

Q: At a given synapse, the _____ neuron has neurotransmitter receptors.

A: Neurotransmitter receptors:                       The receptors present in the plasma membrane of…

Q: drug that binds with the receptor that the neurotransmitter binds with and opens ion channels is an…

A: Neurotransmitters are the sort of chemical messengers which bind to the specific receptor to produce…

Q: pain-induced reflexes to be both myelinated and larger diameters.

A: The stimuli which are responsible for the pain perception are mechanical(pinch, pressure), heat and…

Q: A slower dull pain is probably carried by a/an: A fiber with large diameter and heavy myelination…

A: The neurons are the structural and functional component of the nervous system that is responsible…

Q: Watch this video (http://openstaxcollege.org/l/neurotrans) to learn about the release of a…

A: A neurotransmitter is the chemical messengers responsible for transmitting the impulse from one…

Q: When you stub your toe, the sensation of touch is felt before the sensation of pain. Based on your…

A: The nervous system- is one of the complex body system that acts as a command center of the body. It…

Q: Why can a greater-than-normal stimulus trigger an AP during the relative refractory period but not…

A: Our brain sends and receives information in the form of electrical signals. These electrical signals…

Q: Role of myelin is to allow action potential jump down axon quickly? True False

A: Neurons are the basic structural and functional unit of nervous system. These help in conduction of…

Q: Excitatory postsynaptic potentials (EPSP) are associated with ___     depolarization…

A: Depolarization occurs when more positively charged ions flow inward compared to the resting…

Q: Identify and describe the following on the diagrams below:   1. Dendrites   2. Axon   3.…

A: Our nervous system is a complex network of cells and nerves and it helps to carry/transmit…

Q: Fill in the blank:  Myelin contains a high proportion of _______________________.

A: The basic unit of communication in the nervous system is the neuron. A neuron is also called as…

Q: Classify the given items with the appropriate group. Neuron is hyperpolarized Occurs when…

A: Relative Refractory PeriodNeuron is hyperpolarized: This occurs during the Relative Refractory…

Q: Question 1 Explain why during the absolute refractory period, even a very strong stimulus cannot…

A: The period from the start of the action potential to followed after  peak is called as absolute…

Q: A diagram displaying the different levels of organisation of the nervous system

A: The nervous system is a complex network of cells and tissues that work together to transmit signals…

Q: Which of the following stimuli (s) produces only a local potential and no action potential? Group of…

A: Action potentials occur when distinguished ions across the neuronal membrane. It occurs when a…

Q: a. Between the stars, what would be the gating mechanism of the sodium channels if this was an…

A: The difference in electrical charge that exists between the inside and outside of a cell membrane is…

Q: Fill in the blank:   The moment following the passage of an action potential during which a…

A: The term action potential refers to rapid, short term change in the “membrane potential” across the…

Q: To maintain ____ action potentials are sent through____ neurons.

A: When there is a balanced influx and efflux of the ions in and out of the cell through the cell…

Q: Describe the effect of myelination on the speed ofaction potential propagation, as well as other…

A: The change in the electrical potential across the cell membrane of a nerve cell is referred to as…

Q: When stimulated by effective steady stimuli, sensory receptors :-a- continuously discharge…

A: Introduction  Sensory receptors are those receptors which perceive the signals from the outer…

Q: Influx of ________ ions initiates neurotransmitter release into the synaptic cleft by the process of…

A: Impulse transmission at neuromuscular junction : Neurotransmitters are the chemical messengers…

Q: A pin can be pressed against the skin lightly and elicit no response from the pain receptor how…

A: A neuron plays an important role in us .It receives and sends the impulse to the brain or spinal…

Q: Neurons communicate with other cells at chemical synapses at the end of their _____…

A: The brain is one of the most complex organs. Neurons are the building blocks of the brain. A human…