Site of Somatosensory Parietal Lobe complex & association Frontal Lobe Site of Visual sensations Occipital Lobe Balance, hearing, and Emotion Primary Somatosensory Cortex Allows conscious control of precise, skilled, voluntary Temporal Lobe Receives sensory info and capable of spatial Site of motor cortex and Primary Motor Cortex complex reasoning

Site of Somatosensory Parietal Lobe complex & association Frontal Lobe Site of Visual sensations Occipital Lobe Balance, hearing, and Emotion Primary Somatosensory Cortex Allows conscious control of precise, skilled, voluntary Temporal Lobe Receives sensory info and capable of spatial Site of motor cortex and Primary Motor Cortex complex reasoning

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

Chapter16: The Neurological Exam

Section: Chapter Questions

Problem 5ILQ: Watch this short video (http://openstaxcollege.org/l/facialnerve) to see an examination of the...

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Most of the neurons from the fasciculus gracilis synapse in the inferior thoraxand enter the spinocerebellar system, whereas most of the neurons fromthe fasciculus cuneatus synapse in the nucleus cuneatus and then continueto the thalamus and cerebrum. Therefore, it can be deduced that most ofthe proprioception from the lower limbs is unconscious and most of theproprioception from the upper limbs is conscious. Explain why this differencein the two sets of limbs is of value.
86. All of the following statementsconcerning the corticospinal tract arecorrect EXCEPT:A. Most of the upper motor neuronshave their cell bodies in the precentralgyrusB. Pyramidal tract axons descendthrough the corona radiataC. Upper motor neurons reach theanterior limb of the internal capsuleD. Pyramidal tract separates intobundles in the midbrainE. Uncrossed pyramidal fibers continueas the ventral corticospinal tract
Which of these sensory modalities does not pass through the ventral posterior thalamus? gustatoiy proprioception audition nociception
Watch this video (http://openstaxcollege.org/l/motorpathway) to learn more about the descending motor pathway for the somatic nervous system. The autonomic connections are mentioned, which are covered in another chapter. From this brief video, only some of the descending motor pathway of the somatic nervous system is described. Which division of the pathway is described and which division is left out?
You have learned that most sensory impulses never reach ourconscious awareness. Why? What would be the drawback tobeing consciously aware of almost all sensory impulses?
A neuron stimulating the biceps brachii (muscle at the arm) to contract belongs to___ visceral motor division visceral sensory division somatic motor division somatic sensory division
All cognizant mental activities occur within O long-term O episodic O working O sensory Q 15 of 15 memory.
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
In the _____ pathway involving slow pain, the first neuron passes from a pain receptor to the posterior horn of the spinal cord, the second neuron crosses over and passes to the thalamus where it causes poorly localized sensations of aching pain. options: lateral spinothalamic vestibulospinal dorsal column medial lemniscal lateral corticospinal
The posteroventral nucleus of the thalamus projects to all the following centers, except :-a- frontal motor areasb- primary somatic sensory areac- somatic sensory association aread- parieto-occipito-temporal association area
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.
The central terminals of afferent neurons mediating spinal reflexes are distributed within the spinal cord, so that :-a- all of them terminate in the same spinal segment of their entry to the cordb- all of them terminate on interneuronsc- all of them subserve spinal reflexesd- they provide pathways for divergence of the incoming sensory impulses