Osmometric neurons fire ________ when you don’t have a lot of water in your body compared to when you are well hydrated. More Less The same amount

Q: “All-or-none” response in impulse conductionmeans that

A: A biological cell performs numerous biochemical functions. The longest cell is the neuron. It is…

Q: After an action potential, the opening of voltage-gated ________ channels and the inactivation of…

A: Action potential When nerve cell respond to a stimulus, it generates electric impulse which travel…

Q: In an excitable cell at rest, we expect to find ______ ions effluxing out of the cell through leak…

A: The cell is said to be at resting membrane potential when the cell potential is at rest, and the…

Q: Multiple sclerosis is a condition that results from the demyelination of axons in the brain and…

A: Neurons have the capability of generating and transmitting nerve impulses while neuroglia cells are…

Q: Will osmolality remain the same in both extracellular and intracellular fluid? How much will be the…

A: Osmolality is a measure of the number of dissolved particles in a fluid. A fluid with high…

Q: Positively charged ions flow out of the cell when voltage-gated _____ channels open.   A K+   B…

A: The potential difference between the inner and outer side of the cell membrane is called membrane…

Q: How is osmolality different from molarity and what will be the osmolality of the body fluids.? How…

A: We will first discuss the difference between osmolality and molarity of a solution. Osmolality is…

Q: In a typical action potential, the membrane potential of the neuron or muscle changes from_____…

A: Action potentials can be defined as the swift rise and succeeding fall in the membrane potential or…

Q: a.in which direction it points in or out electric gradient? b.in which direction it points in or…

A: Electrochemical gradient defined the electrochemical potential of movements of ions across a…

Q: Say if the following cells are excitable or not: 1. Neuron: 2. Skeletal muscle: 3. Skin: 4. Smooth…

A: Chemicals, cells, tissues, organs, organ systems, and organisms make up the human body's…

Q: At resting state the interior of the cell is more ______________ than the outside When…

A: The distinction in the electrical potential between within a cell and the outside of a cell help to…

Q: COMPARE AND CONTRAST THEM IN TABLES 1. action membrane potential and resting membrane potential…

A: Neurons transmit signals in the form of chemicals which are electrically charged. When chemicals are…

Q: The action potential is a voltage pulse at one location on a cell membrane. How does it get…

A: Neurons are the basic structural and functional unit of the nervous system. Neurons have three…

Q: During the _____ phase of an action potential, both gates of the voltage regulated sodium channels…

A: The action potential (AP) is generated by the neurons and the muscle cells. The AP is comprised of…

Q: key roles in establishing and maintaining the resting membrane potential

A: Simulation of sensory nerve endings creates an impulse. Due to the movement of ions across the nerve…

Q: Describe the activity of the sodium-potassium pump and indicate its importance to the cell.

A: For every 2 potassium ions carried in, it serves to carry sodium and potassium ions in a proportion…

Q: Question 43 The sheath forming an electrical barrier around the axon is; O Dendrites None of these…

A: Neurons are transmitters of information. Between various brain regions and between the brain and the…

Q: Explain Ion homeostasis process.

A: The steady-state of chemical, physical, and, internal conditions maintained by living organisms is…

Q: What an electrical current is, and how sodium ions and gated membrane channels generate a current.

A: Electrophysiology is the mechanism of the cell for producing electrical currents and potentials. For…

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: Each functional stucture in the body contributes its share to the maintenance of more or less stable…

A: All living beings have various situations such as chemical conditions, ionic concentration, water…

Q: Define osmolality

A: The number of soluble particles in a solution is measured by osmolality. It determines the water…

Q: The motor end plate is extensively folded to allow for greater number of what structure? Terminal…

A: Motor end plates are called Neuromuscular junctions, are specialized chemical synapses formed at the…

Q: Contrast the abilities of intracellular and extracellular fluids andmembrane lipids to conduct…

A: impulses are flows into the dendrites and cell body of most neurons by acetylcholine. impulses are…

Q: ATP is used to power the creation of a neuron's resting potential. True False

A: Resting potential of the neuron is -70 mV.

Q: Response Afferent Efferent Balance pathway pathway Effector Receptor Receptor IMBALANCE Control…

A: Homeostasis is the essence of the life of warm-blooded organisms on the earth. Due to the varying…

Q: Compare and contrast action and graded potentials. Your answer should include a definition of each,…

A: An action potential is generated when the potential of a biological membrane rises or falls rapidly…

Q: Compare and contrast calcium, sodium, and potassium ion channels used in neurons.

A: Ions are charged species which are nessesry for neuronal communications . Thier movement helps in…

Q: Neuron(key terms:dendrites, axo,electrical signals, communication) One important structure/feature…

A: The brain is made up of neurons and glial cells. These neurons are made up of components that helps…

Q: Sodium concentration in extracellular fluid is: O > potassium < potassium = potassium undetectable

A: When compared to only 5 g of iron and 0.06 g of copper, a typical human weighing 70 kg has…

Q: If you eat salty pretzels without drinking, what happens to the volume of your extracellular fluid?…

A: Salty pretzels are snacks that comprise fewer calories but are highly rich in salt, and they can…

Q: Watch the video called "(OLD VIDEO) Osmosis". Pick one quote from the video, state the time it took…

A: Without osmosis, life as we know it would not exist. Cells would not be able to absorb the necessary…

Q: Define osmolarity and tonicity, and explain the differencebetween them

A: Osmotically active particles' concentration in a solution which is expressed quantitatively in terms…

Q: In which system is osmolarity significant? endocrine system immune system nervous system urinary…

A: Given: Osmolarity is the concentration of a solution  that is expressed as the total no.of solute…

Q: ___________ are called “downers” because they depressthe central nervous system.

A: According to the question, we have to find out what are called "downers" because they depress the…

Q: Positively charged ions are called and migrate toward the in an electrical field. are negatively…

A: The term migration is defined as the movement of ions in the influence of an externally applied…

Q: Fill in the blank:  As a result of an additive phenomenon called _______________________, the…

A: An action potential can be defined as a quick rise and a subsequent decrease in voltage or membrane…

Q: All of the following are true for neurons EXCEPT neurons must produce many proteins neurons are…

A: Neurons (also known as neurons or nerve cells) are the basic components of the brain and nervous…

Q: Explain how tonicity is different from osmolality.

A: The number of solutes per kilogram of solvent is the osmolarity, which is a measure of the…

Q: osmosis is how excess salts that accumulate in cells are transferred to the blood stream so that…

A: Osmosis out ruled:            Osmoregulation in maintaining the saltwater balance of the body helps…

Q: When nerve membranes become more permeable, is the nervemore or less easily stimulated?

A: Neurons also known as nerve cells are involved in the transduction of electrical impulses by…