Drag each label into the appropriate category to designate whether the given item describes elements of gray or white matter of the spinal cord. Somas, synapses, and dendrites Integrates arriving electrical signals Transmits electrical signals rapidly over long distances Located to the periphery of the spinal cord Marked by low myelination Contains myelinated axons Gray Matter White Matter Recet

Drag each label into the appropriate category to designate whether the given item describes elements of gray or white matter of the spinal cord. Somas, synapses, and dendrites Integrates arriving electrical signals Transmits electrical signals rapidly over long distances Located to the periphery of the spinal cord Marked by low myelination Contains myelinated axons Gray Matter White Matter Recet

Anatomy & Physiology

1st Edition

ISBN:9781938168130

Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Publisher:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Chapter13: Anatomy Of The Nervous System

Section: Chapter Questions

Problem 5ILQ: Watch this video (http://openstaxcollege.org/l/graymatter) to learn about the gray matter of the...

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Watch this video (http://openstaxcollege.org/l/graymatter) to learn about the gray matter of the spinalcord that receives input from fibers of the dorsal (posterior)root and sends information out through the fibers of theventral (anterior) root. As discussed in this video, theseconnections represent the interactions of the CNS withperipheral structures for both sensory and motor functions.The cervical and lumbar spinal cords have enlargements asa result of larger populations of neurons. What are theseenlargements responsible for?
A patient with a cerebral lesion exhibits loss of fine motor control ofthe left hand, arm, forearm, and shoulder. All other motor and sensoryfunctions appear to be intact. Describe the location of the lesion asprecisely as possible
DRAW IT The reflex that pulls your hand away when you prickyour finger on a sharp object relies on a neuronal circuit withtwo synapses in the spinal cord. (a) Using a circle to represent across section of the spinal cord, draw the circuit. Label the typesof neurons, the direction of information flow in each, and thelocations of synapses. (b) Draw a simple diagram of the brainindicating where pain would eventually be perceived.
Bill and Mary were involved in an accident, and each experienced lossof proprioception, fine touch, and vibration on the left side of the bodybelow the waist. Physicians determined by magnetic resonance imaging(MRI) that Bill had damage to his spinal cord and that Mary had damageto her brainstem. Explain which side of the spinal cord was damaged inBill and which side of the brainstem was damaged in Mary
Contrast the somatic nervous system with the ANS foreach of the following:a. number of neurons between the CNS and the effectororganb. location of neuron cell bodiesc. structures each innervatesd. inhibitory or excitatory effectse. conscious or unconscious controlf. neurotransmitter(s) used
A kicker on the local football team has experienced head trauma. When attempting to kick the ball, his movements were jerkyand exaggerated. The team’s athletic trainer was convinced that the kicker had damage to his cerebellum and insisted that hebe transported to the hospital. Does the athletic trainer’s conclusion make sense? Why or why not?
The part of the diencephalon that regulates hunger,weight, water and electrolyte balance, sleep andwakefulness, temperature, arterial blood pressure,heart rate, production of substances that stimulatethe pituitary gland, and movement and secretion inareas of the digestive tract is the .a. thalamusb. pineal glandc. infundibulumd. hypothalamus
The spinal cord contains tracts of inter neurons. Some tracts carry _ signals downward and other tracts carry _ signals upward. a. Cardiac, Motor b. Sensory, Autonomic c. Sensory, Motor d. Motor, Sensory
Which of these structures is not under direct control ofthe peripheral nervous system?a. trigeminal ganglionb. gastric plexusc. sympathetic chain gangliad. cervical plexus
According to the function ofthe transmitted neuralimpulse which are the types ofneurons? How different arethe concepts of afference andefference of the neuralimpulse transmission?
Complete transection of the spinal cord produces all of the following effects, except :-a- permanent loss of all sensations mediated by the cord below level of lesionb- permanent loss of voluntary movements by muscles innervated by the cord below level of lesionc- permanent loss of reflexes mediated by the cord below level of lesiond- temporary loss of micturition reflexes
Match somatic and autonomic nervous divisions with their desscriptions. can be boluntary 1. somatic fairly involutary 2. autonomic