神經(jīng)生物學(xué)ppt課件:7神經(jīng)系統(tǒng)對(duì)運(yùn)動(dòng)的調(diào)節(jié).ppt
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Central Nervous System Control of Movement
XING, GUOGANG(邢國剛), MD. Ph.D.
北京大學(xué) 神經(jīng)科學(xué)研究所
Neuroscience Research Institute, Peking University
Email address: ggxing@bjmu.edu.cn
Introduction
* 生命在于運(yùn)動(dòng)......
* 運(yùn)動(dòng)是動(dòng)物維系個(gè)體生存和種族繁衍的基本功能之一
How does a coordinated movement achieved ?
The motor control hierarchy have three levels
* The highest level- strategy
> Represented by the association areas of neocortex and basal ganglia of the forebrain
> Is concerned with strategy:
?a The goal of the movement and the movement strategy that best achieves the goal
The motor control hierarchy have three levels
* The middle level-tactics
> Represented by the motor cortex and cerebellum
> Is concerned with tactics
- The sequences of muscle contractions
? Arranged in space and time
? Required to smoothly and accurately achieve the strategic goal
The motor control hierarchy have three levels
* The lowest level- execution
> Represented by the brain stem and spinal cord
> Is concerned with execution
- Action of the motor neuron and interneuron pools that generate the goal-directed movement and make any necessary adjustments of posture
Overview
* 脊髓內(nèi)的"下運(yùn)動(dòng)神經(jīng)元(Lower neurons)?±￡?除了受到脊髓內(nèi)局部環(huán)路的影響外，還受到大腦皮層運(yùn)動(dòng)區(qū)及腦干中許多"上運(yùn)動(dòng)神經(jīng)元(Upper neurons)?±的支配和協(xié)調(diào)
* 基底神經(jīng)節(jié)和小腦則向那些上運(yùn)動(dòng)神經(jīng)元提供某種感覺、認(rèn)知或感性的信息，使運(yùn)動(dòng)更加精確和協(xié)調(diào)
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Part 1
Spinal Control of Movement
Introduction
* "running around like a chicken with its head cut off"
* The rhythmic movements could be elicited in the hind legs of cats and dogs long after their spinal cords had been severed from the rest of the central nervous system
-Charles Sherington & Graham Brown (English)
- The importance of circuitry within the spinal cord for the coordinated control of movements
Spinal circuitry control of movement
Spinal motor neurons
* Alpha motor neurons
Innervate skeletal muscle (extrafusal muscle) ......
Central Nervous System Control of Movement
XING, GUOGANG(邢國剛), MD. Ph.D.
北京大學(xué) 神經(jīng)科學(xué)研究所
Neuroscience Research Institute, Peking University
Email address: ggxing@bjmu.edu.cn
Introduction
* 生命在于運(yùn)動(dòng)......
* 運(yùn)動(dòng)是動(dòng)物維系個(gè)體生存和種族繁衍的基本功能之一
How does a coordinated movement achieved ?
The motor control hierarchy have three levels
* The highest level- strategy
> Represented by the association areas of neocortex and basal ganglia of the forebrain
> Is concerned with strategy:
?a The goal of the movement and the movement strategy that best achieves the goal
The motor control hierarchy have three levels
* The middle level-tactics
> Represented by the motor cortex and cerebellum
> Is concerned with tactics
- The sequences of muscle contractions
? Arranged in space and time
? Required to smoothly and accurately achieve the strategic goal
The motor control hierarchy have three levels
* The lowest level- execution
> Represented by the brain stem and spinal cord
> Is concerned with execution
- Action of the motor neuron and interneuron pools that generate the goal-directed movement and make any necessary adjustments of posture
Overview
* 脊髓內(nèi)的"下運(yùn)動(dòng)神經(jīng)元(Lower neurons)?±￡?除了受到脊髓內(nèi)局部環(huán)路的影響外，還受到大腦皮層運(yùn)動(dòng)區(qū)及腦干中許多"上運(yùn)動(dòng)神經(jīng)元(Upper neurons)?±的支配和協(xié)調(diào)
* 基底神經(jīng)節(jié)和小腦則向那些上運(yùn)動(dòng)神經(jīng)元提供某種感覺、認(rèn)知或感性的信息，使運(yùn)動(dòng)更加精確和協(xié)調(diào)
�
Part 1
Spinal Control of Movement
Introduction
* "running around like a chicken with its head cut off"
* The rhythmic movements could be elicited in the hind legs of cats and dogs long after their spinal cords had been severed from the rest of the central nervous system
-Charles Sherington & Graham Brown (English)
- The importance of circuitry within the spinal cord for the coordinated control of movements
Spinal circuitry control of movement
Spinal motor neurons
* Alpha motor neurons
Innervate skeletal muscle (extrafusal muscle) ......
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