Question 30 Repolarization corresponds with sodium channels opened O both sodium and potassium channels closed O potassium channels opened O potassium channels closed A Moving to another question will save this response.
Q: Question 7. A channel that opens in response to the binding of a specific molecule, which is usually…
A: Introduction :- Ion channels that are activated by changes in the electrical membrane potential…
Q: QUESTION 5 The activation of the sodium potassium pumps creates ion redistribution by pumping three…
A: Sodium potassium pump It is also known as the Na⁺/K⁺ ATPase It is found in the membrane of all…
Q: Question 2 The afferent (sensory) neuron conducts the signal from the spinal cord to the brain from…
A: Central nervous system is responsible for controlling the activities of the body.
Q: QUESTION 3 Identify an important difference between the cytoplasm of the axon and that of the axon…
A: The component of a nerve cell (neuron) known as the axon, also known as a nerve fibre, is…
Q: QUESTION 2 In an electrical synapse: Neurotransmitter release triggers the opening of ion channels…
A: A synapse is a connection between one neuron's axon terminal and the dendrite of the next neuron.…
Q: QUESTION 3 Some hormones bind to ion channels on neurons and cause them to open. This would be an…
A: Hormones chemical messenger present in the blood circulation. hormones are secreted by glands…
Q: QUESTION 5 What is retrograde axoplasmic transport? Oa. Movement of material from axon terminal to…
A: The scientific theory of the nerve system is known as neuroscience. Physiological, morphology,…
Q: The anterior-most part of the brain steam is the
A: The brainstem is very small, accounting for only around 2.6% of the total weight of the brain. It…
Q: QUESTION 2 Fast muscle fibers differ from slow muscle fibers in that fast muscle fibers a. are…
A: Fast-twitch muscle fibers are predominantly possibly used when the body needs to make sudden, all…
Q: QUESTION 4 In the resting state: voltage-gated Na+ and K+ channels are both closed voltage gated Na+…
A: Voltage-gated ion channels: a type of transmembrane proteins that results in formation of ion…
Q: Question 22 The simplest form of nervous organization is found in A) sponges. B) flatworms. C)…
A: Cnidarians have simplest form of nervous system. So, option D is correct.
Q: QUESTION 6 This type of substance slows our thinking and slows our ability for emotion regulation.…
A: Question: 6 As people continue to abuse alcohol or other substances, changes in the structure and…
Q: QUESTION 1 The diagram below represents a part of the human ear. Explain the result if part A is…
A: Ear is the primary organ involved in hearing. The major purpose of the ear is to keep our senses of…
Q: Question 2 The visual photoreceptors and bipolar cells do not have action potentials but ganglion…
A: A retinal ganglion cell (RGC) is a type of neuron located near the inner surface (the ganglion cell…
Q: QUESTION 21 Negative feedback O initiates compensatory, biological responses from sensory receptors…
A: Negative feedback is a self-regulatory system in which it reduces the output for stabilizing the…
Q: Question 18 A receptor, such as the EGF receptor we saw in class, usually has which topological…
A: EGF receptor is epidermal growth factor or EGFR. It is a tyrosine kinase receptor. EGF is a dynamic…
Q: not a function of the autonomic nervous system
A: Autonomic nervous system( ANS): These are the functional division of the nervous system. Body…
Q: Question 22 Papilledema indicates O a brainstem tumor, such a glioma. O increased intracranial…
A: Edema is a chronic condition which is characterized by retention of fluids into different regions of…
Q: Question 1 Weak depolarization of a postsynaptic neuron leads to: [Select] AMPA receptors, [Select]…
A: When presynaptic neuron receives a weak electrical stimulation, it releases glutamate in moderation.…
Q: Question 8 Mycobacterium leprae infects which cell and cause demyelination and other peripheral…
A: Most of the motor neurons are myelinated. Presence of myelin sheath on the axons of the neurons…
Q: The lateral geniculate nucleus LGN is an important component of the: Thalamus…
A: Brain is a complex structure which control and coordinates different body function by the cells…
Q: QUESTION 13 Which of the following are not criteria for a substance to be detined as a…
A: Note: We’ll answer the first question since the exact one wasn’t specified. Please submit a new…
Q: Question 31 What is true about transient receptor potential (TRPV1) channels? They are highly…
A: Transient receptor potential vanilloid 1 (TRPV1) channel is speculated to have six transmembrane…
Q: Question No 1. When the nerve cell is in a resting state itsmembrane is 59:43 Oa. Polarized Ob.…
A: Neuronal excitability is mainly regulated by an A-type voltage-gated potassium channel which is a…
Q: QUESTION 21 In the sensory system by which odorants are detected. O A. CAMP stimulates the opening…
A: According to the guidelines we are allowed to solve only one question at a time , ask other by…
Q: QUESTION 4 This amino acid neurotransmitter causes IPSPS in target cells: GABA glutamate epinephrine…
A: Neurotransmitters are specific chemical molecules that are released from the presynaptic neuron in…
Q: The inferior surface of a neuron’s plasma membrane at resting membrane potential will have--- A)…
A: Resting Membrane potential is a state when the cell do not get impulse and is not excited. It is…
Q: QUESTION 9 Action potential is characterized by O a. Membrane repolarization created by Na channels…
A: The ion channels that let the positive ions to flow out or negative ions to flow inside through the…
Q: Question 7 Place the events involved in generating an action potential in the order in which they…
A: Neurons are ths structural and functional unit of the nervous system. They help to transmit…
Q: Question 5 of 18 When a threshold or a minimum magnitude of voltage fluctuation is reached, Select…
A: The neurons are responsible for generation and transmission of nerve impulses. They contain specific…
Q: Immediately after an action potential has peaked, which of the following channels will open?
A: A neuron will accept feedback from other neurons and transmit the signal to downstream neurons if…
Q: Question 10 What part of the brain acts as a relay station for incoming sensory information?…
A: The forebrain includes mainly two cerebral hemispheres of the brain (cortex) and a number of…
Q: QUESTION 22 Select the factor that binds to the side of the actin filaments to stabilize it.…
A: Actin is a family of globular multi functional proteins that form microfilaments.
Q: Question 10.2 Homework • Unanswered A nerve net Select an answer and submit. For keyboard…
A: Nervous system is a kind of organ system which is responsible for providing the response to a…
Q: Question 5 0.5 pts Which of the following are receptors used for neurons during reception? O…
A: 5. Volatge gated ion channels
Q: QUESTION 17 Neurotranamtes Can induce Ca** flux in a muscie cell and thus muscle contraction are…
A: Answer 17) C- neurotransmitters are released at the synapse
Q: Question 2: Action potentials 1. Aneuron is isolated and placed in a bath of normal ECF solution.…
A: Introduction An action potential is a characteristic pattern of sudden rise and subsequent decline…
Q: QUESTION 30 Which of the following is characteristic of the events at the inhibitory synapse? O…
A: The term inhibitory synapse is associated with particular sort of junction in which activation from…
Q: The most posterior part of the brain stem is the
A: The brainstem is the posterior stalk like structure of the brain and comprises of three essential…
Q: Question 4 Sodium channels at the trigger zone initiate action potentials by a feedback negative…
A: INTRODUCTION The voltage gated sodium channels present throughout the body. It conduct sodium ions…
Q: monosynaptic reflex differs from a polysynaptic reflex by the presence of the presence of many…
A: Reflex actions are the immediate reactions which are involuntary and unplanned. These are controlled…
Q: QUESTION 6 Which of the following correctly describes a second messenger? O A protein, such as a…
A: Second messengers are intracellular signaling molecules released by the cell in response to exposure…
Q: acetylcholine is acting in an excitatory manner which of the following is likely a result of the…
A: Neurotransmitter is a chemical which released from ends of nurone and act as a stimulant of adjacent…
Q: QUESTION 12 Refer to the figure. Cll membranes Intercellular- space Hydrophillc - channel Molecules…
A: Cell Junctions: Cell junctions consist of multiple protein structures that attach adjacent cells or…
Q: QUESTION 5 Novocaine works by binding to and blocking Na+ channels. If there was another drug that…
A: Action potential of neurons.
Q: QUESTION 14 (1) In action potential's all-or-none law, a sub-threshold depolarization won't trigger…
A: Sub-threshold is a very low magnitude stimulus that is not enough to produce an action potential in…
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- Question 9 During the absolute refractory period for a neuron, most voltage-gated Na+-channels are in which conformation? a. closed but capable of opening © b. open, or activated c. closed and not capable of opening d. Any of these.Question 9 Afferent fibers carry impulses away from the CNS. True FalseQuestion 14 It is important for newly developed neurons to form synapses with other neurons. which cells are most responsible for guiding the formation of these particular junctions? A) Schwann cells B) Microglial cells C) Satellite cell D) Astrocytes Please provide brief explanation why answers correct or incorrect
- Question 4 A monosynaptic reflex differs from a polysynaptic reflex by the presence of the presence of many efferent neurons multiple stimuli an interneuron a multi -faceted responseQuestion 21 When a neurotransmitter like acetylcholine is acting in an excitatory manner which of the following is likely a result of the acetylcholine acting on the postsynaptic cell? A) Chemically gated sodium channels will closed B) Chemically gated potassium channels will open C) chemically gated sodium channels will open D) chemically gated chloride channels will open Please give a quick explanation each correct or incorrect.Question 52 Nerve impulses leading to the skeletal muscle carry information to direct movements. The nerve fibers sending these signals will most likely belong to which division of the nervous system? A) Parasympathetic division B) Somatic nervous system C) Sensory (afferent) division D) Sympathetic division Please shortly explain each one why correct or incorrect.
- Tetraethylammonia, a toxin that blocks potassium channels, will More than one answer may be correct. Question 10 options: prevent the establishment of a resting membrane potential cause neurons to be unable to generate any action potential lengthen the duration of a neuron action potential increase neuron membrane Na+ conductance decrease neuron membrane K+ conductanceQuestion 2 The afferent (sensory) neuron conducts the signal from the spinal cord to the brain from the receptor to the spinal cord towards the effectorQuestion 25 The inferior surface of a neuron’s plasma membrane at resting membrane potential will have--- A) Negative charge and contains less sodium than outside of the cell B) Positive charge in contains more sodium than outside of the cell C) Negative charge and contains more sodium than outside of the cell D) Positive charge in contains less sodium than outside of the cell The term central nervous system refers to? Please provide a brief explaination of each one correct or incorrect
- Question 25 The inferior surface of a neuron’s plasma membrane at resting membrane potential will have--- A) Negative charge and contains less sodium than outside of the cell B) Positive charge in contains more sodium than outside of the cell C) Negative charge and contains more sodium than outside of the cell D) Positive charge in contains less sodium than outside of the cell The term central nervous system refers to? Please give brief explanation why each is correct or incorrectQuestion 15 Which of the following is not a function of the autonomic nervous system? A) Innervation of glands B) Innervation of cardiac muscle C) Innervation of a smooth muscle of the digestive tract D) Innervation of skeletal muscle. Please quick explain why each answer right or wrongQUESTION 5 Voluntary attention may be defined as ______________. a. willful direction of attention to objects or locations in the world or internal events b. a sudden capturing of attention by external stimuli c. "endogenous" orienting d. "exogenous" orienting e. a and c