If the initial level of sympathetic tone were not present, then only vasoconstriction could occur as a result of sympathetic division activity. A. True B. False

Q: The vein that drains the dural sinuses of the brain is the (a) cephalic vein. (b) great saphenous…

A: The cells are the primary unit of life. The cells form the tissues which collectively form an organ.…

Q: Explain how vascular resistance and blood flow are regulated by (a) sympathetic adrenergic fibers,…

A: The heart is a muscular organ that pumps blood through the blood vessels of the circulatory system…

Q: When a person is very stressed and tense, his or her blood pressure typically rises. What aspect of…

A: The autonomic nervous system consists of two divisions known as sympathetic and parasympathetic…

Q: Most parasympathetic preganglionic fibers are found in the________ nerve.

A: BASIC INFORMATION NERVOUS SYSTEM :- It is of two types namely Central nervous system (CNS) and…

Q: During surgery, the right vagus nerve was accidently cut. Explain the effect on the heart rate. a.…

A: It has three components: blood, heart and the blood vessels. Heart is derived from the mesodermal…

Q: Seizures arise due to abnormal asynchronous electrical discharges from millions of neurons in the…

A: A seizure is a sudden, uncontrolled electrical disturbance in the brain. It can cause changes in…

Q: Orthostatic hypotension is the result of inefficiency of an autonomic reflex called the _____.

A: Introduction: Orthostatic hypotension is a condition in which an individual experiences a drop in…

Q: Fill in the blank:  The large fibers on the distal side of the A-V node make up the…

A: A-V node: It is the connecting system between upper chamber and lower chamber of the heart that acts…

Q: Discuss the difference between pre and postganglionic neurons of the sympathetic system

A: Innervation of the Autonomic Nervous System is provided by two neurons (instead of 1).The…

Q: Resting heart rate is regulated by the autonomic nervous system. Explain how the resting heart rate…

A: The vagus nerve stimulates certain muscles in the heart that help to slow rate.When it overreacts ,…

Q: Describe the sympathetic pathway from the CNS to the (a) heart; and (b) adrenal gland.

A: The sympathetic sensory system is additionally called as the thoraco-lumbar division, as it contains…

Q: Describe the sympathetic response in a frightening situationfor each of the following body parts:…

A: The autonomic nervous system is divided into parasympathetic and sympathetic nervous systems. The…

Q: What is the action of Sympathetic division (arousing) on heart beat functioning when a crisis…

A: Nervous System -- Structurally the nervous system is divided in to two parts ( i ) Central Nervous…

Q: Which of the following is an effector site for an ANS axon? a. Quadriceps femoris  b. Diaphragm c.…

A: Every vertebrate has the "central nervous system" (CNS) and the "peripheral nervous system" (PNS).…

Q: The sciatic nerve is a composite of two nerves, the ___________ and _________ .

A: The sciatic nerve is the longest and the largest nerve of the human body. It originates from the…

Q: Which type of fiber could be considered the longest?a. preganglionic parasympatheticb. preganglionic…

A: Nerve fiber in the autonomous nervous system (ANS) is also called an axon. It is generally a long…

Q: Sympathetic stimulation of blood vessels maintains a state of partial vasoconstriction called _____.

A: Vasomotor tone.

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: the paired ventricle in the brain is...........................

A: The vertebrate nervous system can be divided into the "central nervous system" (CNS) and the…

Q: A cerebrovascular accident (CVA, or stroke) can occur due to a blockage in the:

A: Stroke is a cerebrovascular accident which happens when the blood supply of brain is reduced or…

Q: The type of artifact in this EEG signal is due to . 1. bad contact between reference electrode and…

A: Electroencephalography (EEG) is the procedure that is used to record the electrical activity of the…

Q: Discuss the functions of the sympathetic system

A: Autonomous systems  Autonomous nervous system is the involuntary system of the body that regulates…

Q: What effect does sympathetic stimulation have on stroke volume if thevenous return remains constant?…

A: Most blood vessels, including those in the skin, the digestive tract, and the kidneys, constrict…

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: Explain why the sympathetic division is also called thethoracolumbar division even though its…

A: Sympathetic division or thoracolumbar division have the preganglionic somas present in the lateral…

Q: What effect would loss of sympathetic stimulation have on the flow of air into the lungs?

A: All body functions are regulated by the nervous system and endocrine system. These systems work…

Q: When the sympathetic division detects a decrease in blood pressure, will it engage in a positive or…

A: The positive feedback loop in the body occurs when a product produced influences the initiator…

Q: Two thalami are joined across the slit of the 3rd ventricle by the a. Septum b. Periventricular…

A: Thalami is the plural of the word thalamus. These are grey matter that is located on both sides of…

Q: Cell bodies of the sympathetic preganglionic neurons are part of ...

A: In autonomic nervous system, fibres from the central nervous system to the ganglion are known as…

Q: Sympathetic division splanchnic nerves end in theganglia, which are anterior to the vertebral column…

A: Splanchnic Nerve --Bilateral visceral autonomic nerve .  It is composed of myelinated preganglionic…

Q: true or false.. The articulatory errors present in an apraxic patient’s speech are often the result…

A: Aphasia is a condition in which there is trouble in speaking up the words due to injury in the area…

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: A patient is experiencing a stroke due to an occlusive lesion in the posterior cerebral artery. This…

A: The brain is considered the major organ of the central nervous system. Laterally, it gets divided…

Q: Which underlying cause is most associated with the development of epileptic seizures? a.…

A: A seizure occurs as a result of a disturbance in the electrical impulses in the brain. It alters the…

Q: . Thiamine deficiency does not cause: a. Wernicke encephalopathy b. Peripheral neuropathy c. Magenta…

A: Thiamine , also known as vitamin B1 , helps the body to produce energy from carbohydrates , also…

Q: Parasympathetic nerves _____.   A cause smooth muscle in blood vessel walls to contract   B cause…

A: Autonomic nervous system is divided into two divisions known as sympathetic and parasympathetic…

Q: Predict what might happen if the choroid plexus produced excessive CSF,in amounts greater than the…

A: The choroid plexus (ChP) is a is a plexus of tissue found in each of the brain ventricles, which…

Q: Explain how decompensation develops and its effects onthe central nervous system.

A: Decompensation is the deterioration in the functioning of the body system which previously function…

Q: Which are the superior most ventricles where CSF is formed?   a. Both Third and Fourth ventricles…

A: Answer- CSF or cerebro spinal fluid is the colorless fluid present in the brain and spinal cord and…

Q: Complete transection of the spinal cord did not affect arterial blood pressure when the lesion…

A: Spinal cord transection, is the injury caused by the tear in the spinal cord occurred due to the…

Q: At the onset of exercise, what does sympathetic discharge cause?

A: The sympathetic stimulation connects the organs to the brain through spinal nerves. The stimulation…

Q: Medical practice is paying more attention to theautonomic system in considering disease states.…

A: Autonomic tone refers to the stimulation or effect of nerve signals carried by sympathetic and…