Organization of Human Body , Integumantary Sytem, Nervous System, and Endocrine System Reviewer
Organization of the human body
Human anatomy and physiology – study of the structure and function of the human body.
Anatomy- the scientific discipline that investigates the structure of the human body.
Physiology – The scientific discipline that investigates the process of functions of living things.
6 Structural levels
1. Chemical level – atoms combine to form molecules 2. Cell level – Molecule form organelles 3. Tissue level – similar and surrounding material make up tissues 4. Organ level –diff tissue combine to form organs 5. Organ system level –Organs make up an organ system 6. Organism – organs sytem make up an organism
Characteristics of Life 1. Organization – Specific interrelationships among the parts of an organism and how those parts interact to perform specific functions. 2. Metabolism- To use energy to perform vital functions 3. Responsiveness- To sense changes in the environment and make adjustment that help maintain life. 4. Growth- Increase in size of all part of the organism. 5. Development- The changes an oranism undergoes through time. Fertilization to death. 6. Reproduction – Formation of new cells or new organism.
Homeostasis – Maintenance of a relatively stable condition within the internal environment.
*Nervous system and *endocrine system
Components of Homeostasis
> Receptor- Monitors the value of a variable
> Control Center- (*brain) establishes the set point around w/c the variable is maintained.
> Effector-(*heart) change the value of the variable
*stimulus- changed variable. Initiates a homeostatic mechanism
Feedback Mechanism 1. Negative Feed – works to restore homeostasis by correcting a deficit within the system. 2. Positive Feedback- Deviation from a normal value occurs, the response of the system is to make the deviation even greater.
*Visceral Membrane – inside
*Parietal Membrane- outside
TERMINOLOGY OF THE BODY PLAN
*anatomical Position
Human anatomy and physiology – study of the structure and function of the human body.
Anatomy- the scientific discipline that investigates the structure of the human body.
Physiology – The scientific discipline that investigates the process of functions of living things.
6 Structural levels
1. Chemical level – atoms combine to form molecules 2. Cell level – Molecule form organelles 3. Tissue level – similar and surrounding material make up tissues 4. Organ level –diff tissue combine to form organs 5. Organ system level –Organs make up an organ system 6. Organism – organs sytem make up an organism
Characteristics of Life 1. Organization – Specific interrelationships among the parts of an organism and how those parts interact to perform specific functions. 2. Metabolism- To use energy to perform vital functions 3. Responsiveness- To sense changes in the environment and make adjustment that help maintain life. 4. Growth- Increase in size of all part of the organism. 5. Development- The changes an oranism undergoes through time. Fertilization to death. 6. Reproduction – Formation of new cells or new organism.
Homeostasis – Maintenance of a relatively stable condition within the internal environment.
*Nervous system and *endocrine system
Components of Homeostasis
> Receptor- Monitors the value of a variable
> Control Center- (*brain) establishes the set point around w/c the variable is maintained.
> Effector-(*heart) change the value of the variable
*stimulus- changed variable. Initiates a homeostatic mechanism
Feedback Mechanism 1. Negative Feed – works to restore homeostasis by correcting a deficit within the system. 2. Positive Feedback- Deviation from a normal value occurs, the response of the system is to make the deviation even greater.
*Visceral Membrane – inside
*Parietal Membrane- outside
TERMINOLOGY OF THE BODY PLAN
*anatomical Position