A slower dull pain is probably carried by a/an: A fiber with large diameter and heavy myelination   B fiber with medium diameter and light myelination   C fiber with thin diameter and without myelination

Q: Alpha-1 and 2 adrenoreceptors are__________: __________-acting receptors in neurotransmission A:…

A: Neurotransmitter receptors (or neuroreceptors) are membrane receptor proteins that are activated by…

Q: describe how myelination and axon diameter contributes to the increased speed of nerve impulse…

A: The information transmitted by neurons is named nerve impulses. Nerve impulses can roam very rapidly…

Q: a.Would an action potential travels faster in an axon with a wide diameter or a small diameter? b.…

A: The structural and functional unit of the nervous system is called a neuron. A neuron is composed of…

Q: Oligodendrocyte Neurlemma Reset Zoom Schwann cell Basal lamina Nucleus Dendrite Endoneurium…

A: Neurons are nerve cells specialized in conducting nerve impulses in response to stimuli from the…

Q: Injury to the peripheral nervous system can change the receptive field of nociceptive cells in the…

A: The different parts of the body function in a systemic and synchronized manner and this functioning…

Q: Stretch reflex is characterized by the following except :-a- disynaptic reflexb- high localizationc-…

A: The involuntary contraction of the muscle in response to stretch without sensory input from the…

Q: In the gray matter of the cerebral cortex, one would expect to find O Cell bodies and dendrites with…

A: The swollen part of the central nervous system (CNS) located in brainbox having cavities filled with…

Q: In multiple sclerosis, nerve fibers in the CNS lose their myelin. Explain why this loss affects…

A: The nervous system plays an important role in transmitting the reflexes from the tissues to the…

Q: During the relative refractory period: Can select more than one   K+ channels are open. Na+…

A: The action potential propagation is the method in which a stimulus travels through the neurons, and…

Q: physiology of ascending pathways

A: Nervous system:This system is a complex and highly organized network of specialized cells i.e.,…

Q: Describe how the speed of nerve signal conduction varies with axon diameter and the presence or…

A: Neurons send information and instructions throughout the brain and body. The information is sent via…

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: What is a subluxation and what is somatic dysfunction? What role do the mechanoreceptors and…

A: A subluxation refers to a partial or incomplete dislocation of a joint usually in the context of…

Q: 9) Describe the three types of afferent nerve fibers linked to nociceptors in terms of myelination,…

A: Pain is balanced at many spots. It tends to be modulated at the level of pain receptors.We need to…

Q: use arrows to identify: Axon Schwann cell (myelin sheath) Nucleus of Schwann cell neurofibril node…

A: The structural and functional units of nervous system which are capable of sending and receiving…

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: Following administration of an opiate drug, "pain signals" are prevented from getting out of the…

A: Introduction: Opiates are a class of drugs that include natural and synthetic substances such as…

Q: Compare and contrast somatosensation and pain pathways.

A: In our body, there are a great deal of receptors that initiate the overall activity of the body.…

Q: The following diagram helps explain which of the following phenomena? C fiber (nociceptive)…

A: Pain is referred to as a primary human instinct which can be briefed as a distressing sensation or…

Q: Accurately label the components of a reflex arc on this example. Efferent nerve fiber Reset Zoom…

A: Nervous system controls and integrates different body parts.  Reflex action is an involuntary action…

Q: Parkinson's Disease results in a(n)  (increase or decrease) in D1 mediated effects on striatal…

A: Parkinson's disease is a neurological movement disorder that occurs due to some neurons in the brain…

Q: Which of the following actions is NOT an example of a reflex action Sneezing Blinking the eyelids…

A: The sudden and involuntary action to stimulus is called a reflex action. It helps in adapting and…

Q: Which of the following describes a sympathetic postganglionicaxon?a. long, unmyelinated axonb.…

A: Answer: Introduction: Parasympathetic preganglionic fibers bend to and synapse with the…

Q: Nociceptors are tonic rather than phasic receptors.Speculate on why this is beneficial to…

A: Sensory receptors are neurons that respond to specific sensory stimuli such as pain, touch, light,…

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: Muscarinic cholinergic receptors always produce a stimulatory or excitatory response. A. True B.…

A: Muscarinic cholinergic receptors are part of the parasympathetic nervous system. These receptors are…

Q: Identify the structure labeled “h" g d. Thalamus Epithalamus Hypothalamus Lateral ventricle

A: The brain, composed of nerve tissue, acts as the control center of the body. It is a part of the…

Q: Match the informational signal in the left column with the appropriate category from the right…

A: Afferent fibers brings sensory information from peripheral receptors to central nervous system .…