Explain how the dendritic length constant changes if More channels are open

Q: Depolarization causes: • Changing membrane permeability for Na • Changing membrane permeability for…

A: When an action potential generates a change in electrical potential can be seen and it runs along…

Q: Which of the following is true about * astrocytes: protoplasmic astrocytes, are located in the gray…

A: Astrocytes are specialised glia that outnumber the neurons in the central nervous system. Each…

Q: Identify the function of the Purkinje fibres. Select one: O a. O b. O c. O d. act as a pacemaker and…

A: The conducting system of heart consists of SA node, AV node, Right and left AV bundles, purkinje…

Q: Explain how the nervous system detects and responds toeach of the following:a. a decrease in blood…

A: The nervous system is defined as the network or system of nerve cells and fibres, which will…

Q: Explain how ligand-gated channels are opened, using nicotinic ACh receptors as an example.

A: Nicotinic acetylcholine receptors or nAChRs can be defined as the receptor polypeptides that will…

Q: Define the term dendritic spines?

A: Spines are hard, needle-like anatomical designs found in both vertebrate and invertebrate species.…

Q: The ANS regulation of blood pressure is involuntary, yet biofeedback techniques enable individuals…

A: ANS stands for the autonomic nervous system. ANS regulates the function of internal organs.

Q: For a ganglion cell that has a red ON center and Green OFF surround, explain how frequent these…

A: The ganglion cells are the only ones that send out neural signals in the form of action potentials.…

Q: Explain Ion homeostasis process.

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

Q: Trace the shortest route a blood corpuscle could take in traveling from the systemic arch to the…

A: Gas exchange with tissues occurs through the circulatory system's arteries, arterioles, and…

Q: . Erythropoietin is available as a drug. Why would athletesabuse it?

A: Hormones are chemical messengers, that are mainly released by several glands. The hormones travel in…

Q: reason why open system has a limitation of collecting only 10 mL of blood?

A: Blood sample collection is done by phlebotomy procedure.  It can be collected by 2 methods -  1.…

Q: Explain differences between action potentials of cardiac muscle cells and those in nodal cells of…

A: On the surface of the heart, muscle fibers are arranged to form a fused interconnected mass termed a…

Q: Describe the action potential of an autorhythmic cell in the heart. a) Indicate how the opening and…

A: Answer 1- the opening and closing of each ion channel affects the membrane potential of the cell can…

Q: All efferent fibers of the vasomotor center belong to the ___________division of the autonomic…

A: Efferent fibers are nerve fibers that exit a particular area and are opposed to afferent…

Q: Trace one possible path of a red blood cell from the leftventricle to the toes.

A: The pumping action of the heart circulates blood throughout the body. Arteries are blood vessels…

Q: Explain the mechanism by which Haemoglobin maintains the acid-base balance of blood.

A: Hemoglobin is a complex protein formed of hem and globulin. The heme part consists of iron and…

Q: Action potentials from baroreceptors in the aortic arch and carotid travel along The…

A:

Q: can you please explain how to use this formula.  Mean Arterial Pressure(MAP)=CO x PR CO=SV x HR

A: The mean arterial pressure determines the average pressure at which blood through the arteries in…

Q: Why is it expected that input resistance and rheobase in a neuron would be very less correlated

A: The rheobase is operationally defined as the minimal electrical current that is necessary to…

Q: Explain the physiologic significance of the syncytiotrophoblast’s production of hCG.

A: During sexual intercourse, the sperm enters the vaginal canal and begins to swim toward the egg. The…

Q: Following a concussion, we see a large influx of:

A: A concussion is very severe disease. It one type of head injury which is temporarily affects brain…

Q: regarding ions concentration that decrease cardiac output, all almost true, except: a. increase K+ O…

A: Cardiac output is the amount of blood pumped by heart per minute. Cardiac output can be calculated…

Q: Which of these statements describes a physiologic significance of the differences in the composition…

A: ECF is the extracellular fluid, while ICF is the intracellular fluid. These are separated by the…

Q: Explain why the second phase of the chymotrypsin mechanism slower than the first phase

A: Chymotrypsin is a zymogen that remains in the inactive stage and gets activated only when peptide…

Q: are at or near equilibrium in the erythrocyte (one reaction)

A: The end product of glycolysis is the conversion of glucose into pyruvate. It is the 10 step process…

Q: 116 Cutaneous vasoconstriction is caused by an increase in which of the following? A) Activity of…

A: Cutaneous vasoconstriction is a thermoregulatory response that occurs to excess exposure to cold.…

Q: a blood clot forms in the leg, then breaks free as an embolus. Is it more likely to become stuck in…

A: A blood clot that breaks of is referred to as an embolus. This embolus can be of different types…

Q: Explain how the dendritic length constant changes if The membrane resistance increases

A: Length constant (λ) of a neuron is measured to determine the distance travelled by voltage through…

Q: If blood pressure suddenly drops (not more than 10 mmHg) which of these mechanisms will be activated…

A: The circulatory system is one of the most essential systems in the body. The function of the…

Q: Activation of β2-adrenergic receptors in vascular smooth muscle stimulates vasodilation /…

A: Adrenergic receptors are a class of G protein-coupled receptors that are responsible for mediating…

Q: Negative feedback Receptor Effector Departure from Return to resting level Resting level Positive…

A: When the output of a system serves to decrease or dampen the mechanisms that contribute to that…

Q: Explain how the dendritic length constant changes if The diameter increases

A: In neurobiology, length constant is a mathematical constant used to quantify the distance that a…

Q: You give a drug intravenously that you think is a selective beta 1 receptor agonist to a patient.…

A: Beta 1 receptor agonists,also called as beta adrenergic receptor agonists are drugs that act on the…

Q: Why are the currents generated by CNG and HCN channels typically depolarizing instead of…

A: HCN channel are voltage gated cation channel that conduct Na+ and K+ with a permeability ratio of…

Q: A drug that enhances the activation of plasminogen to plasmin will cause:

A: Plasmin is an important clotting fibrinogen factor that is utilized in the process of blood clotting…

Q: A brain hemorrhage within the region of the right internal capsule results in paralysis of the left…

A: The brain acts as the central organ of the nervous system and acts as the controlling and…

Q: Calculate the BPMs in the table.

A: Value delta-t (in secs) # of r-waves beats per minute(bpm) supine 20.98  19 54.441 seated…

Q: Explain Warburg effect.

A: Glycolysis is a process in which one mole of glucose is partially oxidized into two moles of…

Q: Potassium leak channels allow K+ to pass into the neuron.

A: In neurons the signals are transmitted electrochemically. A neurotransmitter, that is released by…

Q: Diagrammatically explain the phenomenon of counter current multiplication.

A: The process of harnessing energy to create an osmotic gradient that allows you to reabsorb tubular…

Q: Select one: O a. Cluster of cell bodies in the CNS b. Bundle of axons in thne CNS O c. Cluster of…

A: 1. A Gangalion is a swelling along the nerve present at the sensory edge like skin, which contains…

Q: A 60 year-old patient HA, who was bedridden for a few days, feels dizzy and experiences significant…

A: These vascular changes serve two purposes: (1) to efficiently distribute cardiac production among…

Q: Role cardioregulatory centers play in regulating heart rate

A: Cardio regulatory center is a part of brain that found in the medulla oblongata. It is responsible…

Q: Trace the shortest route a blood corpuscle could take in travelling from the systemic arch to the…

A: The circulatory system passes via arteries, arterioles, and capillaries, wherein gas exchange with…

Q: "stimulation of erythropoietin is caused by"

A: Erythropoietin is a type of hormone produced mainly by specialized kidney cells. After…

Q: Movemen of ions into/out of cardiac cells that allow for automaticity…

A: Depolarization of cardiac cells happens due to the diffusion of Na+ ions into the sinoatrial nerve.…

Q: Explain the possible implications of following: Resonant, Hyperresonant and Dull.

A: Percussion is a technique for determining the underlying structures of a surface and is used in…

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.