In the spinal cord, the somas of the lower motor neurons are found ina. the cauda equina.b. the posterior horns.c. the anterior horns.d. the posterior root ganglia.e. the fasciculi
Q: Describe the components, connective tissue coverings, and branching of a spinal nerve.
A: The nerves responsible for carrying the motor, sensory and autonomic signals between the body and…
Q: A spinal reflex requires the participation of each of the following except:a. cerebral cortexb.…
A: A spinal reflex is a form of animal behavior in which the stimulation of sensory organs or receptors…
Q: Wallace is the victim of a hunting accident. A bullet grazed his vertebral column, and bone…
A: The vertebral column is the spinal column that is known to be the central axis of the skeleton of…
Q: Which of the following is correct? tertiary neurons found by:- a. extending between the posterior…
A: We know that, Neurons are the chief cells of the nervous system. The junction between two neurons…
Q: The medulla oblongata is one of the smallest sections of the brain. Why can damage to it cause…
A: The control and coordination of the body in humans occur by two systems: the nervous system and the…
Q: All of the following are true regarding the descending motor tracts EXCEPT which one? A. They…
A: The correct option is B.
Q: Which of the following provide almost the entire nerve supply of the shoulders and upper limbs? O A.…
A: There are four nerve plexus located in the trunk. Plexus are areas where nerve fibers from different…
Q: A kicker on the local football team has experienced head trauma. When attempting to kick the ball,…
A: The cerebellum is a large portion of the CNS/central nervous system located close to the brainstem.…
Q: Describe the structure and function of the meningeal membranes that enclose the spinal cord
A: The spinal cord extends from the medulla oblongata present in the brain stem to the lumbar region of…
Q: Testing for neurological function involves a series oftests of functions associated with the cranial…
A: Nerves arising from central nervous system connect either effector organs or receptors from…
Q: The subdivision of the brain that does not initiate somatic motor movements, but rather coordinates…
A: Introduction: The brain is an organ of the body that helps in controlling and coordinating the whole…
Q: Identify the origin of the accessory (XI) nerve in the spinal cord, the foramina through which it…
A: Foramina or foramen is a minute opening through the bone using which crucial anatomical structures…
Q: (a) What are the superior and inferior boundaries of the spinal cord in the vertebral canal? (b) A…
A: The central nervous system of the human body has two parts that are:1)Brain 2)Spinal cord The…
Q: is the term that refers to the crossing of spinal tracts as the pass up and down the brainstem and…
A: *Spinal tracts crossing as they pass up and down the brainstem and spinal cord left to right or…
Q: Describe the gross structure of the spinal cord.
A: Central nervous system is the portion of nervous system which is composed mainly of brain and spinal…
Q: Each of the following is true of the spinal cord, except: it ______________. a.carries…
A: The spinal cord is a thin, tube-like structure that is formed of nervous tissue. It is long and…
Q: The primary motor area projects efferent fibers to all the following centers, except :-a- 1ry…
A: The primary motor area is the region in the brain located in the dorsal portion of the lobe. It…
Q: 30. Which naming scheme is not correct? a. Corpus stiatum = caudate +putamen+globus pallidus b.…
A: Need to find which of the following naming scheme is not correct from the options.
Q: Name the three meninges from superficial to deep. How does the dura mater of the brain differ from…
A: BASIC INFORMATION NERVOUS SYSTEM :- It is of two types namely Central nervous system (CNS) and…
Q: A 50-year-old woman has diminished vibratory sensation on her right arm. Which of the following…
A: The brain and the spinal cord are the two main organs of the central nervous system. Spinal cord…
Q: Damage to the brains precentral gyrus in the left hemisphere would most likely result in what type…
A: Brain's precentral gyrus is also called somato-motor cortex because it controls volitional movements…
Q: Describe the spinal cord according to: A. location B. shape and length C. vertebral levels of…
A: Note :- Since you have asked multiple questions im only answering the ist 3 as per bartleby…
Q: Identify the spinal nerves that make up the lumbar plexus.
A: The primary and important nerves of the body are formed by spinal nerves. There are a total of 31…
Q: sensory imput is relayed into the choices a. precentral gyrus b. insular gyrus c. hypothalamic…
A: Sensory information is collected by brain from the sense organs like nose, ears and skin ( smell,…
Q: Most fibers of the corticospinal tracta. decussate in the medulla oblongata.b. synapse in the…
A: The brain is divided into three major parts, the cerebrum, the cerebellum, and the brainstem. It is…
Q: How many spinal nerves are there in a body?
A: The nervous system is one of the vital systems of a body. It is a system of nerves which carry…
Q: The central terminals of afferent neurons mediating spinal reflexes are distributed within the…
A: A reflex action is an autonomic and rapid response to a stimulus, which minimizes any damage to the…
Q: damage to which spinal nerve might produce the following physical findings? a- inability to extend…
A: Hi! Thank you for the questions. As you have posted multiple questions, I will be answering the…
Q: Describe the organization of the gray matter of the spinal cord
A: The spinal cord forms the part of the central nervous system. It is the long, tube-like structure…
Q: Parkinson’s disease results from damage of :-a- caudate nucleusb- subthalamic nucleusc- globus…
A: Parkinson’s disease is the nervous system’s chronic disease. It is marked by the cardinal features…
Q: Basal ganglia include all the following, except :-a- caudate nucleusb- dentate nucleusc- subthalamic…
A: The brain of the vertebrates is known to be occupied by the group of subcortical nuclei, arising…
Q: Describe the organization of the spinal nerves.
A: Level Region How many vertebrae’s How many spinal nerves Name (Vertebrae) Name…
Q: the bundle of fibers that the spinal cord continues down is called the ........................
A: Spinal cord possesses an anterior and a posterior median fissure running along its length.
Q: In adults, the spinal cord is not the same length as the vertebral canal, and most of the lumbar…
A: The spinal cord along with the brain forms the central nervous system of the body. It helps in…
Q: 42 A patient comes to the physician because in church he has begun falling every time he closes his…
A: Introduction The nervous system is a highly specialized system of an animal that coordinates its…
Q: The somatic motor neurons innervating the __________________ of the lower limbs are located in the…
A: The lower motor neuron somatic efferent system comprises the neurons which innervates the striated…
Q: During a procedure called a lumbar puncture,CSFsurrounding the meringues is withdrawn with a needle.…
A: Lumbar puncture is inserting a needle at the lumber vertebra to collect the cerebrospinal fluid from…
Q: the posterior part of the medbrain has four rounder elevations called.. O A. Tectum O B. Substania…
A: The midbrain is the highest portion of the brainstem, which serves as the primary link between the…
Q: Bill and Mary were involved in an accident, and each experienced lossof proprioception, fine touch,…
A: The nervous system of the body is in charge of establishing communication between different parts of…
Q: Most corticospinal tracts decussate in the ________. A.spinal cord B. basal nuclei C.medulla…
A: The corticospinal pathway is a one-neuron pathway from the cerebral cortex controlling movements of…
Q: a. Describe the characteristics of a spinal cordtract, using an example.b. Differentiate an upper…
A: Introduction:- discuss about spinal nerve and neurones.
Q: When a patient flexes their neck, the head tips to the right side. Also, their tongue sticks out…
A: The human brain is broadly divided into three main parts as below:Cerebrum, Cerebellum, and Brain…
Q: A patient with a stroke cannot gaze conjugately to the left and has a spastic paralysis of the right…
A: Localization refers to the location of the lesion that is causing a patient's symptoms and…
In the spinal cord, the somas of the lower motor neurons are found in
a. the cauda equina.
b. the posterior horns.
c. the anterior horns.
d. the posterior root ganglia.
e. the fasciculi
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Damage to any of the following spinal cord tracts may result ina disruption in sensation from the lower limb except thea. fasciculus gracilis.b. anterior spinocerebellar tract.c. posterior spinocerebellar tract.d. lateral corticospinal tract.The vertebral canal is occupied by a bundle of spinal nerve roots called a. the terminal filum. b.Below L2 the descending tracts. c. the gracile fasciculus. d. the medullary cone. e. the cauda equina.Pyramidal cell axons project through corticospinal tracts andsynapse ata. motor nuclei of cranial nerves.b. motor neurons in the anterior horns of the spinalcord.c. motor neurons in the posterior horns of the spinalcord.d. motor neurons in the lateral horns of the spinalcord.
- The white matter of the spinal cord is composed primarily ofa. unmyelinated axons.b. neurolemmocytes and satellite cells.c. myelinated axons.d. cell bodies of neuronsLabel the following components of the corticospinal tracts with numbers 1 through 6, with 1 being the origin of the tracts and 6their destination. a. _____ Medullary pyramids where most fibers decussate b. _____ Anterior horn of the spinal gray matter c. _____ Midbrain and pons d. _____ Upper motor neurons in the primary motor andpremotor cortices e. _____ Corona radiata and internal capsule f. _____ Lateral funiculus of the spinal cordThe main connection between the right and left hemispheres of thecerebrum is thea. intermediate mass. d. unmyelinated nuclei.b. corpus callosum. e. thalamus.c. vermis
- Fibers of the dorsal-column/medial-lemniscal systema. carry the sensations of two-point discrimination, proprioception,pressure, and vibration.b. cross to the opposite side in the medulla oblongata.c. are divided into the fasciculus gracilis and the fasciculus cuneatusin the spinal cord.d. include secondary neurons that exit the medulla and synapse in thethalamus.e. All of these are correct.The _______ serve the skin and musculature of the posterior body trunk at their emergence from the spinal cord; while the ventral rami of spinal nerves pass anteriorly as the __________ to supply the muscles of intercostal spaces, and the skin and muscles of the anterior and lateral trunk. A. dorsal rami, ventral rami B. dorsal rami, intercostal nerves C. dorsal root, ventral root D. nerve plexues, spinal nerves The white matter of spinal cord is bisected by fissures: the more open ventral fissure is called the ventral _____________ and the dorsal one is the shallow dorsal ______________. A. funiculus, horn B. median fissure, median sulcus C. median sulcus, median fissure D. horn, funiculus n gray matter of spinal cord, the central butterfly shaped region, contains dorsal and anterior _____; on both lateral side of the spinal cord, there are the dorsal and ventral ______ for interneurons and sensory fibers that…The gray communicating ramus containsa. visceral sensory fibers.b. parasympathetic motor fibers.c. sympathetic preganglionic fibers.d. sympathetic postganglionic fibers.e. somatic motor fibers
- Most fibers of the corticospinal tracta. decussate in the medulla oblongata.b. synapse in the pons.c. descend in the rubrospinal tract.d. begin in the cerebellum.The anterior root of a spinal nerve containsa. axons of both motor and sensory neurons.b. axons of sensory neurons only.c. interneurons.d. axons of motor neurons only.The outermost connective tissue wrapping of a nerve is called thea. epineurium.b. perineurium.c. endoneurium.d. arachnoid mater.e. dura mater.