Exam 7 Flashcards
Dorsal Columns
discriminated somatosensory (mapped to skin senses)
Posterior Spinocerebellar
proprioception (spine to brain)
Anterior Spinocerebellar
proprioception (spine to brain)
Lateral Spinothalamic
sensory information going to cortex; visceral sensory (spine to thalamus)
Anterior Spinothalamic
sensory information going to cortex; visceral sensory (spine to thalamus)
Lateral reticulospinal
inhibits the extensor and stimulates the flexor muscles of the trunk and proximal limbs
Lateral corticospinal
control the voluntary movement of contralateral limbs
Rubrospinal
muscle tension/tone of muscles in limbs
Medial reticulospinal
muscle tension/unskilled movement
Anterior Corticospinal
gross and postural movement of the trunk and proximal musculature
Vestibulospinal
maintain balance during standing a moving
Tectospinal
help react to loud noises/head movement (relation to colliculi)
Ascending Tracts Color
Blue
Descending Tracts Color
Red
Cranial Nerve I
Olfactory
Olfactory Sensory, Motor, Both?
Sensory; carrying information concerning olfaction
Cranial Nerve II
Optic
Optic Sensory, Motor, Both?
Sensory; carrying information concerning vision
Cranial Nerve III
Occulomotor
Occulomotor Sensory, Motor, Both?
Motor; carrying information concerning vision,PNS/visceral motor fibers to iris and ciliary muscles; some proprioceoption/sensory feedback from eye muscles
Cranial Nerve IV
Trochlear
Trochlear Sensory, Motor, Both?
Both;
Ophthalmic (V1): Sensory
Maxillary (V2): Sensory
Mandibular (V3): Sensory, Motor
Cranial Nerve V
Abducens
Abducens Sensory, Motor, Both?
Motor; somatic motor fibers to last remaining extrinsic eye muscle plus proprioception/sensory
Cranial Nerve VI
Facial
Facial Sensory, Motor, Both?
Both; innervation to muscles responsible for facial expressions plus proprioception sensory feedback from those muscles, Provides PNS/visceral motorfibers to various glands including lacrimal, (tear), nasal, palatine, (tonsils?), submandibular, (salivary), and sublingual, (salivary)., Sensory, (afferent), information from the taste buds on the anterior ⅔ of the tongue.
Cranial Nerve VIII
Vestibulocochlear
Vestibulocochlear Sensory, Motor, Both?
Sensory; carrying information concerning equilibrium and movement, (vestibular: proprioception), and hearing
Cranial Nerve IX
Glossopharyngeal
Glossopharyngeal Sensory, Motor, Both?
Both; innervating part of tongue and pharynx; somatic motor to and proprioception from a pharyngeal muscle involved in swallowing. PNS efferents, ), information concerning taste and general stimuli such as touch, pressure, etc. from pharyngeal mucosa and posterior tongue; information from chemoreceptors in the carotid body, (O2 and CO2/pH), and pressure receptors in the carotid sinus
Cranial Nerve X
Vagus
Vagus Sensory, Motor, Both?
Both; somatic motor innervation of muscles in pharynx and larynx (swallowing and speech respectively) and feedback proprioception. major PNS visceral motor (efferent) outflow to heart, lungs, GI tract and corresponding visceral sensory information allowing feedback regulation; in particular blood pressure monitoring via receptors in the carotid sinus and respiration control via chemoreceptors in the aortic and carotid bodies. taste buds of posterior tongue and mucosa of larynx/pharynx
Cranial Nerve XI
Accessory
Accessory Sensory, Motor, Both?
Motor. Function; unique as fusion of CN and first 5 cervical SC nerves, (C1-C5). Purely motor, (efferent), as joins with vagus, (X), to innervate muscles in the larynx, pharynx and soft palate; spinal nerves control muscles that move head and neck
Cranial Nerve XII
Hypoglossal
Hypoglossal Sensory, Motor, Both?
Motor. the muscles of the tongue; not only for mastication and manipulation of food but also swallowing and speech.
