9. Which of the following statements about the regeneration of nerve fibers is incorrect?  a. PNS nerve fibers cannot be regenerated b. CNS nerve fibers cannot be regenerated c. Schwann cells secrete growth inhibiting factors to stop axon regeneration d. Oligodendrocytes secrete growth promoting factors to spur axon regeneration e. none of the above

Q: Which of the following is a part of the PNS? a. microglia b. spinal cord c. brain d. neurolemmocyte

A: Peripheral nervous system is the main part of the nervous system which consists of nerves and…

Q: Describe the 6 step sequence of events that occurs at the NMJ in response to a nerve Action…

A: Steps:- The sarcolemma initiates the action potential. 2)The axon terminal receives the action…

Q: Metoprolol blocks beta receptors of the sympathetic nervous system. Which word describes this type…

A: Metoprolol The metoprolol is one of a beta blockers or a selective beta 1 receptor blocker…

Q: thoracal part of the spinal cord was carried out. The irritation of skin receptors of back extrimity…

A: A reflex arc is a pathway that processes a sensory nerve impulse to produce a reflex response. The…

Q: 7. Which statement describes the sympathetic nervous system?  A. Stimulation of the sympathetic…

A: Stimulation of the sympathetic nervous system causes an increase in blood pressure.  The sympathetic…

Q: Many nonsalicylic, nonsteroidal anti- inflammatory drugs (NSAIDS) inhibit pain transmission by the…

A: Different cells play different roles in our body .some helps in identifying the microbe while some…

Q: Cardiac output is defined as a. blood pressure times peripheral resistance. b. peripheral resistance…

A: Blood pressure is the force exerted by circulating blood on the walls of blood vessels. Heart rate…

Q: 1. 1 These are abundant, star-shaped cells that form barrier between capillaries and neurons and…

A: Introduction: The brain, spinal cord, and an intricate network of nerves comprise the nervous…

Q: The motor speech area of the brain, controlling muscles involved in vocalization, is also called:…

A: Broca area is present in frontal lobe of dominant hemisphere mostly the left part of brain. It helps…

Q: 14. Selective serotonin reuptake inhibitors (SSRI) are a class of medications that are prescribed to…

A: A selective serotonin reuptake inhibitors (SSRI) is a common anti-depressant drug given to a patient…

Q: The entry of sodium into the axon causes A. Depolarization of the membrane B. Increase negativity…

A:

Q: Which of the following neurotransmitters have both an excitatory and inhibitory effect?  a. GABA…

A: The chemical messengers of the body are generally referred to as neurotransmitters. They are the…

Q: 1. Effects of the sympathetic stimulation include all, except ___. A. increased digestive system…

A: Two antagonistic and anatomical separated divisions comprises the autonomic nervous system (ANS).…

Q: Which structure transmits impulses towards the nerve cell body? Select one: O a. Dendrite b. Axon…

A: The nervous system controls the activity of what takes place inside and outside the body. The way…

Q: Which alternative best describes the microglial cells? they are concentrated in areas of damage or…

A: Microglial cells are macrophages present in the nervous system. They are responsible for fighting…

Q: surrounds a bundle of nerve fibers A. Neurium B. Perineurium C Epineurium D. Endoneurium E.…

A: A. nerium is a drug which is a derivative of thioctic acid, which is used for seizures.

Q: Which of the following is correct for signaling within a neuron? 1) action potentials stimulate…

A: Normally due to the operation of Sodium Potassium pump the inside of the membrane remains negative…

Q: Damage to the axons in the spinal cord is typically permanent and debilitating. One promising avenue…

A: Neuroglial cells are nonexcitatory supporting cells that are present in both central(CNS) and…

Q: 3. Which structure sends impulses to the body of the nerve cell? Choose one: a. Dendrite b. Axon c.…

A: The nervous system controls the activity of what takes place inside and outside the body. The way…

Q: 6. Which of the following choices is CORRECT? A. cerebrospinal fluid (CSF) is synthesized in the…

A: Cerebrospinal fluid is a clear and colorless body fluid found in the brain and spinal cord. The…

Q: F2

A: Neurons, the basic functional unit of the brain(CNS), composed of a cell body(with a nucleus),…

Q: 12. QUESTIONS 12-17: Use the following list of terms to identify the labeled structures in the…

A: Nervous system consists of brain and spinal cord. Nervous system consists of two types of cell -…

Q: A site of communication between neurons is called a _________ 2. Where is the cerebral spinal fluid…

A: Neurons are also known as fundamental unit of brain and nervous system. The main function is to…

Q: 7. Which of the following is the receptor type at the autonomic ganglia? a. nicotinic b. muscarinic…

A: The many receptor subtypes include: a.Nicotinic receptors, for example, play a role in the impulse…

Q: Which structure transmits impulses towards the nerve cell body? Select one: O a. Dendrite O b. Axon…

A: The nervous system controls the activity of what takes place inside and outside the body. The way…

Q: 9. All of the followings are incorrect about the Graded Potential, except A. It spreads…

A: We know that Graded potential refers to the receptor potential that occurs due to an external…

Q: The CNS is made of the: A. Sensory and motor neurons B. Brain and spinal cord C. Spinal nerves D.…

A: Nervous system is the complex system in our body which controls the entire body and coordinates the…

Q: 28. The hypothesized causes of ALS or Lou Gehrig’s disease is linked to a. glutamate excitotoxicity…

A: ALS or Lou Gehrig’s disease:- is a neurodegenerative disorder characterized by progressive loss of…

Q: 1. What kind of cell performs the major function of the nervous system?

A: Note: Since you have asked multiple question, we will solve the first question for you. If you want…

Q: . A lesion with a bright signal on a DWI means that a. astrocytes and microglia are [proliferating…

A: DWI refers to diffusion-weighted magnetic resonance imaging it uses the specific MRI sequences as…

Q: Which of the following is true concerning the Synapse? a. The post-synaptic membrane possesses…

A: Neurons are the basic structural and functional units of the brain and the central nervous system.…

Q: A neuroendocrine cell is best described as... A. A neuron that releases a neurotransmitter into a…

A: Neuroendocrine cells are specialized cells that are found throughout the body and have the ability…

Q: 5. Which one of the following responses is most likely to occur when the body temperature of a…

A: Whenever the body's temperature falls below 95° F (35° C), hypothermia sets in. The average body…

Q: 2. A neurotransmitter works A. In the axon B. On the presynaptic membrane C. On the postsynaptic…

A: A neurotransmitter is a molecule that transfers the signal from one neuron to another so, it is…

Q: Synaptic nerves belong to the: A. Voluntary nerves B. Optic nerves C. Dorsal root ganglion D.…

A: Nervous system is the complex system in our body which controls the entire body and coordinates the…

Q: What side effects would you worn Audrey to be aware of based on the role of Calmodulin in muscle…

A: Calmodulin is an intracellular polypeptide that upon binding with calcium ions triggers the…

Q: Velocity of action potential is slower in myelinated than in unmyelinated.

A: A. Velocity of the action potential is slower in myelinated sheath than in ummyelinated.

Q: Normally, during resting wakefulness (i.e., not moving) axons from a. ventral lateral nucleus…

A: During resting wakefulness axons from ventral lateral nucleus inhibits motor areas of cerebral…