| Category | Format | Size |
|---|---|---|
| Jiangsu Education Edition Seventh Grade Biology Volume 2 | pptx | 6 MB |
"Neural Regulation of the Human Body" PPT
Description
"Neural Regulation of the Human Body" PPT
Part One: Nervous System
(1) Composition:
Central Nervous System
peripheral nervous system
(2) Basic unit - neuron (nerve cell)
1. Structure:
Neurons
cell body
protuberance
dendrites
axon
2. Distribution:
Cell body: Mainly in the brain and spinal cord.
(Neuron cell bodies with the same function are gathered together to form the nerve center)
Nerve fibers: Mainly outside the brain and spinal cord.
(Many nerve fibers are gathered into bundles to form nerves)
The relationship between neurons, nerve fibers and nerves:
The long processes of neurons and their outer myelin sheaths make up nerve fibers. Many nerve fibers are gathered into bundles and covered with a membrane made of connective tissue to form a nerve.
Human body's neuroregulation PPT, part 2: the basic method of neuroregulation - reflex
(1) The concept of reflection:
It refers to the regular response of the animal or human body to changes in the internal and external environment with the participation of the central nervous system.
(2) Types of reflection:
reflection
unconditioned reflex
Example:
Saliva production, knee jerk reflex, hand withdrawal reflex, blink reflex, baby's sucking reflex, etc. when eating bayberry
Features:
It is born, caused by direct stimulation of specific things, and can be completed with the participation of lower nerve centers (in the brainstem and spinal cord)
Conditioned reflex
Example:
Secretion of saliva when seeing or talking about bayberry, color changes when talking about tigers, drawing cakes to satisfy hunger, once bitten by a snake, fear of wells for ten years
Features:
It is acquired, caused by signal (conditioned) stimulation, based on unconditioned reflexes, and completed with the participation of the cerebral cortex, the high-level nerve center.
Keywords: Jiangsu Education Edition seventh grade biology PPT courseware for the second volume free download, human body neuroregulation PPT download, .PPT format;
For more information about the PPT courseware "Neuroregulation of the Human Body", please click the "Neuroregulation of the Human Body" ppt tag.
"Neural Regulation of the Human Body" PPT courseware:
"Neural Regulation of the Human Body" PPT Courseware Part One Content: The Structure and Functions of Each Part of the Brain Right Brain: Artistic Thinking, Controls the Left Half of the Body Left Brain: Language, Logical Thinking, Controls the Right Half of the Body Cerebellum: Maintains Body Balance (Drunk, bent...
File Info
Update Time: 2024-06-29
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