Question 4 Sodium channels at the trigger zone initiate action potentials by a feedback negative positive potential action Moving to another question will save this responsa 000

Q: Which is/are an electrical signal?

A: The nervous system includes the use of electrical signals for the transmission of impulses from…

Q: Myelinated axons: Are able to transmit signals faster than unmyelinated axons Are relatively rare…

A:

Q: QUESTION 5 The stimulus that usually triggers blood clotting is: O A drop in blood pressure…

A: The process of transformation of blood into gel like substance outside the blood vessels is known as…

Q: 1. Explain the resting membrane potential by discussing: What function does Na+/K+ ATPase membrane…

A: The nerve impulse is a low voltage current measured in millivolts (mv). Neurons are electrically…

Q: Question 51 The major two types of the cells in the central nervous system are O A. sensory and…

A: The brain and spinal cord make up the central nervous system. Most bodily functions, including…

Q: na synapse: O The pre-synaptic cell is always a neuron The post-synaptic cell is always a neuron…

A: A presynaptic cell is a cell that produces action potential and transmutes it to the postsynaptic…

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: Order the following in the correct sequence that reflexes are trasmitted through the nervous system…

A: In animals, there is highly specialized cell is present and is called neurons whose main function is…

Q: Question 10 Which is/are initiated in the axon hillock? O action potential O graded potential O both…

A: An action potential arises, voltage-gated sodium channels open to a quick depolarization in the…

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: Short term facilitation may be due to: Increases in the amount of Na that enters the cell Short term…

A: Neural facilitation, also known as STF (Short term facilitation) is a phenomenon in neuroscience in…

Q: oltage-gated channels open only when the membrane potential depolarizes at least up to a O threshold…

A: The action potential travels down the axon as voltage-gated ion channels are opened by the spreading…

Q: What type of ion current could have produced the membrane potential in E? -40 -50 - -60- D E F -70-…

A: Membrane potential is defined as the electric potential difference across the membrane of a cell…

Q: It is the holidays and you have just finished eating a large meal with your family. Now, you retire…

A: The parasympathetic nervous system (PSNS) and enteric nervous system (ENS) and their roles in…

Q: QUESTION 8 What are 'silent synapses? Synapses with only AMPARS in their postsynaptic surface…

A: The site of contact between two nerves is known as a synapse. There are electrical synapses and…

Q: QUESTION 10 Which of the following is not a phase of muscle contraction? O A. Excitation O B.…

A: The question is asking us to identify which of the given options is not a phase of muscle…

Q: What is occurring during the repolarization phase of an action potential? O Voltage-gated…

A: Answer. All cells have an electrical potential difference, or membrane potential, across the plasma…

Q: Which of the following is not a method for removing neurotransmitter from the synaptic cleft?

A: Neurotransmitters chemical stimulus that is transmitted from one neuron to the other until the…

Q: Question 30 Repolarization corresponds with sodium channels opened O both sodium and potassium…

A: Neurons are the basic structural and functional unit of nervous system and are conductile cells. A…

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: Which of the following statements is not correct? +30! -F Membrane Potential (mV) H D. .B -70- A C…

A: The picture is showing the action potential curve. The action potential is generated on receiving…

Q: Within a neuron an impulse travels: a. in all directions O b from cell body to axon from axon to…

A: A nerve impulse is the action potential that travels from cell body to axon.

Q: Dendritic receptor Secretory vesicle Neurotransmitter Axon terminal C D 1. A 2. B 3. C 4. D B A

A: Neurons are fundamental units of brain and nervous system. It consists of axon, dendrites, soma and…

Q: QUESTION 2 Most sensory stimuli are interpreted in: 00 the cerebrum sensory receptor cells O…

A: Actin is a crucial protein found in cells, particularly in muscle cells. It plays a fundamental role…

Q: Which has a stronger/larger change in voltage? action potential O graded potential both graded and…

A: Neuron or nerve cells are cells that act as messengers, they are able to undergo  electrical…

Q: Question 29 Which of the following does NOT describe the autonomic nervous system? O It controls…

A: Nervous system is calssified in the following manner:

Q: QUESTION 14 Excitation-contraction coupling refers to OA. The action potential of a neuron…

A: The objective of the question is to identify the correct definition of the term…

Q: Question 10 Which of the following is NOT true? O A neurotransmitter's affects at the synapse are…

A: Introduction: Neurotransmitters are chemical messengers that your body requires to function.…

Q: Which of the following is false? O alpha receptors cause smooth muscle to contract O Beta receptors…

A: G protein-coupled receptors such as muscarinic, beta, and alpha receptors are involved in…

Q: Sodium channel open Potassium channel closed Na -K pump closed The stage of the action potential…

A: When a stimulus allows the cell membrane to depolarize above the level of excitation, all sodium ion…

Q: QUESTION 6 At the neuromuscular junction, a neurotransmitter called open, allowing an influx of OA.…

A: The question is asking about the specific neurotransmitter and ion involved in the process of muscle…

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: Thin Filaments contain A. Actin OB. Troponin O C. Tropomyosin OD. All of the above O E. None of the…

A: Skeletal muscles are one of the three chief types of muscles found in the muscular system of the…

Q: The potential depicted in the figure was recorded from the of the heart. D 20 -20 -40 -60 TIME A…

A: The cells included in the sinoatrial (SA) node are considered the primary pacemaker site within the…

Q: What area represents the axon hillock? В NEURON K NEURON L E D A G LABEL C LABEL G LABEL H LABEL B

A: Neurons are the fundamental units of the nervous system and consist of a cell body, axon and…

Q: Which of these processes need ATP most? O Detachment of myosin head O Release of calcium O None of…

A: Contraction of muscles is controlled by two important proteins, actin and myosin.  In muscle cells,…

Q: QUESTION 5 If calcium ions are removed from the fluid surrounding a pre-synaptic neuron, then the…

A: Neurons are the components of the nervous system that are responsible for the generation and…

Q: QUESTION 16 Which pathway is responsible for activating Protein Kinase A? Beta adrenergic receptor…

A: Protein kinase A or PKA is a family of enzyme tyrosine kinase. Its activity depends on the level of…

Q: What are some examples of parasitism?

A: Parasitism is a relationship between two living organisms of different species in which one…

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: Long Answer Essay You are seeing a patient in your office with a primary complaint of excessive…

A: The most common causes of excessive daytime sleepiness are sleep deprivation, obstructive sleep…

Q: Identify the molecule which binds calcium ions after they enter the synaptic bouton via VG Ca++…

A: Calcium along with Troponin, Tropomyosin, Myosin brings about muscle contraction and hence is not an…

Q: Can you please solve this question and say the correct letter

A: During the action potential, part of the neural membrane (sodium channels) opens to allow positively…

Q: Which of these is a 2nd messerger? OBa O CAMP O Calmodulin O Calcitonin

A: Cell is a structural and functional unit of living organisms. Several cells joined together to form…

Q: Question 28 After the depolarization phase of an action potential, the resting potential is restored…

A: The neurons have the capability to generate and transmit electrical impulses in our body. These…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.