医学生理学1课件
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Significancy: movement and secretion
2. Humoral Regulation Definition: The chemical substances secreted by some special cells are delivered in the extracellular fluid to all of parts of body to regulate cellular functions. Properties: Slow ; diffusive; lasting
Significancy: metabolism; growth ; reproduction
Modes: Telecrine: Hormone blood target cell
slow; diffusible; long lasting
Local~: paracrine; autocrine; neurocrine N-H Regulation :Extension of N. Regulation
Animal object: living organisms Plant
Human Being
Task: functions mechanisms regulations
PHYSIOLOGY=THE LOGIC OF LIFE
Relationship with Medicine:
from medical practice for medical practice
PHYSIOLOGY
Yue Limin(岳利民)
Department of Physiology School of Preclinical and Forensic Medicine
Sichuan University
Chapter 1 INTRODUCTION
❖General Consideration ❖Internal Environment and Homeostasis
Organ and system level ---organ physiology
Organismal level
II. Internal Environment and Homeostasis
1. Internal Environment Definition: The actual environment in which cells of body live directly
2. Methods of Physiological Study Observations Experiments Acute: (in vivo; in vitro) Chronic
3. Levels of Physiological Study
Cellular and chemical level ---general physiology
neurocrine
paracrine
autocrine
.
efferent N
N-H Regulation
3. Autoregulation being independent of either neural or
Hale Waihona Puke Baidu
Structural Basis: reflex arc
sensoryafferent N.centerefferent N.effector receptor
Types: unconditioned Reflex conditioned Reflex
Properties fast; precise; local
Normal
Abnormal
(Disease)
e.g. hypertension--blood pressure hyperthyroidism--thyroid hormone
An Anatomical Study of the Motion of the Heart and of the Blood in Animals
III. Regulation of Physiological Functions Three types of regulation on body functions
1. Nervous Regulation Basic Process----Reflex
Definition: Under control of the CNS, the regular response(s) of the living body to stimuli. (variation of the internal and external environment)
Significance: for normal functions of cell How to Maintain It?
The various physiological arrangements serve to restore the normal state, once it has been disturbed
Extracellular fluid (ECF) 1/3 Body fluid
Intracellular fluid 2/3
Cell
ECF
External Environment
Characteristic: dynamic equilibrium
2. Homeostasis
Definition: Relatively constant state of physical and chemical properties of internal environment
❖Regulation of Physiological Functions
❖Principle of Automatic Control of Physiological Functions
I. General Consideration
1. What is Physiology one branch of biological sciences all of the life activities of living organisms
2. Humoral Regulation Definition: The chemical substances secreted by some special cells are delivered in the extracellular fluid to all of parts of body to regulate cellular functions. Properties: Slow ; diffusive; lasting
Significancy: metabolism; growth ; reproduction
Modes: Telecrine: Hormone blood target cell
slow; diffusible; long lasting
Local~: paracrine; autocrine; neurocrine N-H Regulation :Extension of N. Regulation
Animal object: living organisms Plant
Human Being
Task: functions mechanisms regulations
PHYSIOLOGY=THE LOGIC OF LIFE
Relationship with Medicine:
from medical practice for medical practice
PHYSIOLOGY
Yue Limin(岳利民)
Department of Physiology School of Preclinical and Forensic Medicine
Sichuan University
Chapter 1 INTRODUCTION
❖General Consideration ❖Internal Environment and Homeostasis
Organ and system level ---organ physiology
Organismal level
II. Internal Environment and Homeostasis
1. Internal Environment Definition: The actual environment in which cells of body live directly
2. Methods of Physiological Study Observations Experiments Acute: (in vivo; in vitro) Chronic
3. Levels of Physiological Study
Cellular and chemical level ---general physiology
neurocrine
paracrine
autocrine
.
efferent N
N-H Regulation
3. Autoregulation being independent of either neural or
Hale Waihona Puke Baidu
Structural Basis: reflex arc
sensoryafferent N.centerefferent N.effector receptor
Types: unconditioned Reflex conditioned Reflex
Properties fast; precise; local
Normal
Abnormal
(Disease)
e.g. hypertension--blood pressure hyperthyroidism--thyroid hormone
An Anatomical Study of the Motion of the Heart and of the Blood in Animals
III. Regulation of Physiological Functions Three types of regulation on body functions
1. Nervous Regulation Basic Process----Reflex
Definition: Under control of the CNS, the regular response(s) of the living body to stimuli. (variation of the internal and external environment)
Significance: for normal functions of cell How to Maintain It?
The various physiological arrangements serve to restore the normal state, once it has been disturbed
Extracellular fluid (ECF) 1/3 Body fluid
Intracellular fluid 2/3
Cell
ECF
External Environment
Characteristic: dynamic equilibrium
2. Homeostasis
Definition: Relatively constant state of physical and chemical properties of internal environment
❖Regulation of Physiological Functions
❖Principle of Automatic Control of Physiological Functions
I. General Consideration
1. What is Physiology one branch of biological sciences all of the life activities of living organisms