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神经传导路(一).ppt

神经传导路(一).ppt
PPT课件名称:神经传导路(一).ppt 时 间:2022-08-14 i d:5206 大 小:577.08 KB 贡 献 者:dyj00 格 式:.rar 点击下载
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神经传导路(一).ppt

  1张

  标题: The nervous pathway 神 经 传 导 路

  2张

  标题: 一、 Sensory Pathways

  感觉传导通路

  3张

  标题:

  proprioceptive and fine touch pathway of trunk and limbs 躯干四肢本体觉和精细触觉传导路

  4张

  Primary Neuron Cell bodies are located in the ganglion of spinal n. transmit sensory input from joint, muscle, tendon to the posterior funiculus of the spinal cord form the Fasciculus cuneatus and Fasciculus gracilis

  标题:

  1. proprioceptive and fine touch pathway of trunk and limbs

  5张

  Secondary Neuron Cell bodies are located in Nucleus gracilis and Nucleus cuneatus Send out fibers Cross to the opposite by decussation of medial lemniscus Ascends as medial lemniscus

  Third Neuron cell bodis are located in the thalamus send out fibers to form central thalamic radiation project to the somatic sensory cortex

  标题:

  1. proprioceptive and fine touch pathway of trunk and limbs

  6张

  I

  II

  (Gp:) VPL nucleus

  (Gp:) Fasciculus gracilis

  (Gp:) Fasciculus cuneatus

  (Gp:) Medial lemniscus

  III

  (Gp:) Nucleus gracilis Nucleus cuneatus

  (Gp:) Spinal ganglion

  (Gp:) Decussation of medial lemniscus

  (Gp:) central thalamic radiations

  7张

  1. proprioceptive and fine touch pathway of trunk and limbs

  muscles,tendons,joints and periosteum

  Peripheral processes

  I

  ipsilateral posterior funiculus of spinal cord

  (Gp:) II

  Gracile nucleus cuneate nucleus

  III

  supeior 2/3 of postcentral gyrus and posterior part of the paracentral lobule, Precentral gyrus

  (Gp:) central thalamic radiations

  (Gp:) Posterior limb of internal capsule

  Spinal ganglion

  Central processes

  (Gp:) Decussation of medial lemniscus

  (Gp:) medial lemniscus

  ventral posterolateral nucleus (VPL)

  (Gp:) Fasciculus cuneatus (above T4)

  (Gp:) Fasciculus gracilis (below T5)

  Receptor for fine touch in skin

  8张

  标题: Pain,temperature and simple touch pathway of trunk and limbs 躯干四肢的痛温觉和粗略触觉传导通路

  9张

  (Gp:) spinal ganglia

  (Gp:) Ⅰ、Ⅳ、Ⅶ of posterior horn

  (Gp:) spinothalamic tract

  (Gp:) Spinal lemniscus

  (Gp:) ventral posterolateral nucleus

  (Gp:) central thalamic radiations

  I

  II

  III

  10张

  Primary Neuron Cell bodies are located in the ganglion of spinal n. Relay sensory input from the periphery to the posterior horn of the spinal cord Synapses with the secondary neurons in the posterior horn of spinal cord

  标题: Pain,temperature and simple touch pathway of trunk and limbs 躯干四肢的痛温觉和粗略触觉传导通路

  11张

  Secondary Neuron located in the Ⅰ、Ⅳ、Ⅶ of posterior horn of spinal cord Send out fibers cross to the opposite side through the anterior white commissures and form the spinothalamic tract

  Third Neuron the third neurons located in the thalamus send out fibers to form central thalamic radiation project to the somatic sensory cortex

  标题: Pain,temperature and simple touch pathway of trunk and limbs躯干四肢的痛温觉和粗略触觉传导通路

  12张

  Peripheral processes

  I

  II

  III

  supeior 2/3 of posterior gyrus and posterior part of the paracentral lobule

  (Gp:) central thalamic radiations

  (Gp:) Posterior limb of internal capsule

  Spinal ganglion

  (Gp:) Central processes

  (Gp:) Posterior root

  ventral posterolateral nucleus (VPL)

  Skin exteroceptor

  Pain,temperature and simple touch pathway of trunk and limbs 躯干四肢的痛温觉和粗略触觉传导通路

  Ⅰ、Ⅳ、Ⅶ of posterior horn

  lateral spinothalamic tract (pain and temperature)

  anterior spinothalamic tract (simple touch)

  Ascending 1 - 2 segments

  13张

  标题: Pain, temperature and simple touch pathway of head and face 头面部痛温觉和粗略触觉传导通路

  14张

  (Gp:) trigeminal ganglion

  (Gp:) pontine nucleus of trigeminal n

  (Gp:) spinal nucleus of trigeminal n.

  (Gp:) Spinal tract of trigeminal n.

  (Gp:) trigeminal lemniscus

  (Gp:) ventral posteromedial nucleus (VPM)

  (Gp:) central thalamic radiations

  I

  II

  III

  15张

  Peripheral processes

  inferior 1/3 of posterior gyrus

  (Gp:) central thalamic radiations

  (Gp:) Posterior limb of internal capsule

  Central processes

  ventral posteromedial nucleus (VPM)

  Skin and mucosa of head and face

  Pain,temperature and simple touch pathway of head and face 头面部痛温觉和粗略触觉传导通路

  trigeminal ganglion

  Trigeminal n.

  Root of trigeminal n.

  pontine nucleus of trigeminal n.

  spinal nucleus of trigeminal n.

  II

  trigeminal lemniscus

  III

  I

  16张

  标题: 2.非意识性本体感觉传导路

  感受器receptor

  肌腱 骨膜 关节

  脊神经

  (周围突)

  脊神经节

  第1级神经元

  后根

  中枢突

  胸核(C8-L2) 、腰骶膨大Ⅴ—Ⅶ (躯干和下肢), 颈膨大Ⅵ—Ⅶ层(上肢.颈部)

  第2级神经元

  脊髓小脑后束、前束

  经小脑下、上脚

  cortex of paleocerebellum 旧小脑皮质

  Spinal ganglion

  17张

  标题: (三)visual pathway 视觉传导路:

  18张

  receptor

  cone cell rod cell

  bipolar cell

  Lateral geniculate body

  Optic Radiation

  Both banks of calcarine sulcus

  (Gp:) Optic n.

  (Gp:) Optic chiasma

  ganglion cell

  (Gp:) Decussation of fibers from nasal halves of retina

  (Gp:) Fibers from temporal halves of retina uncrossed

  (Gp:) Optic tract

  (三)visual pathway 视觉传导路

  19张

  损伤及表现:

  ①视神经损伤:

  同侧盲

  ②视交叉中部损伤:

  双颞侧偏盲

  ③视交叉外侧部损伤:

  同侧眼鼻侧半偏盲

  ④视束、外侧膝状体、视辐射、视中枢损伤:

  双眼对侧同向性偏盲

  Blindness of eye of corresponding side

  bitemporal hemianopia of visual field

  Blindness in nasal half of visual field of corresponding side

  Homonymous hemianopia of visual field in both eye

  20张

  (Gp:) Pretectal region

  标题: 2. pupillary reflexes 瞳孔对光反射

  retina

  Optic n.

  Optic chiasma

  Optic tract

  Brachium of superior colliculus

  Pretectal region

  accessory nuclei of III

  Oculumotot n.

  Ciliary ganglion 睫状神经节

  Postganglionic fibers节后纤维

  Sphincter pupillae

  Contraction of pupil

  (Gp:) E-W nucleus

  (Gp:) Ciliary ganglion

  (Gp:) Oculumotot n.

  21张

  标题: 2. pupillary reflexes瞳孔对光反射:

  损伤及表现: ①视神经损伤: 患侧瞳孔直接对光反射消失 患侧瞳孔间接对光反射存在

  ②动眼神经损伤: 患侧瞳孔直接对光反射消失 患侧瞳孔间接对光反射消失

  22张

  标题: The acoustic(auditory) pathway 听觉传导路

  (Gp:) cochlear ganglion

  (Gp:) Spiral organ

  (Gp:) cochlear nuclei

  (Gp:) medial geniculate body

  (Gp:) inferior colliculus

  (Gp:) acoustic radiation

  23张

  The acoustic(auditory) pathway 听觉传导路

  Spiral organ

  cochlear ganglion

  Cochlear nerve

  cochlear nuclei

  Trapezoid body

  inferior colliculus

  medial geniculate body

  acoustic radiation

  transverse temporal gyri

  Posterior limb of internal capsule

  Lateral lemniscus

  Brachium of inferior colliculus

  24张

  25张

  I

  II

  (Gp:) VPL nucleus

  (Gp:) Fasciculus gracilis

  (Gp:) Fasciculus cuneatus

  (Gp:) Medial lemniscus

  III

  (Gp:) Nucleus gracilis Nucleus cuneatus

  (Gp:) Spinal ganglion

  (Gp:) Decussation of medial lemniscus

  (Gp:) central thalamic radiations

  26张

  (Gp:) spinal ganglia

  (Gp:) Ⅰ、Ⅳ、Ⅶ of posterior horn

  (Gp:) spinothalamic tract

  (Gp:) Spinal lemniscus

  (Gp:) ventral posterolateral nucleus

  (Gp:) central thalamic radiations

  I

  II

  III

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