Chapter 1: Flashcards
Definition of homeostasis
the state of relative stability of the body’s internal environment.
Define anatomy.
The science of body structures and the relationships among them.
Define dissection.
The careful cutting apart of body structure to study their relationships.
Define Physiology
The science of body functions - how the body parts work.
Name all the branches of anatomy.
Embryology Developmental biology Cell biology (cytology) Histology Gross anatomy Systematic anatomy Regional anatomy Surface anatomy Imagining anatomy Pathological anatomy
Name ALL the branches of Physiology
Molecular physiology Neurophysiology Endocrinology Cardiovascular physiology Immunology Respiratory physiology Renal physiology Exercise physiology Pathophysiology
Define the study of EMBRYOLOGY
The first 8 weeks of development after fertilization of a human egg.
Define the study of DEVELOPMENTAL BIOLOGY
The complete development of an individual from fertilization to death.
Define the study of CELL BIOLOGY (cytology)
Cellular structures and functions
Define the study of HISTOLOGY
Microscopic structures of tissues.
Define Gross Anatomy
Structures that can be examined without a microscope (visible to the naked eye)
Define Systematic Anatomy
Structures of specific systems of the body such as the nervous or respiratory systems.
Define Regional Anatomy
Specific regions of the body such as the head or chest
Define Surface Anatomy
Surface markings of the body to understand internal anatomy through visualization and palpating (gentle touch).
Define Imaging Anatomy
Internal body of structures that can be visualized with techniques such as x-rays, CT scans, and other technologies for clinical analysis and medical intervention.
Define Pathological Anatomy
Structural changes associated with disease.
Define Molecular Physiology
Functions of individual molecules such as protein and DNA.
Define Neurophysiology
Function property of nerve cells.
Define Endocrinology
Hormones (chemical regulators in blood) and how they control body functions.
Define Cardiovascular Physiology
Functions of the heart and blood vessels.
Define Immunology
The body defenses against disease-causing agents.
Define Respiratory Physiology
Functions of the air passageways and lungs.
Define Renal Physiology
Function of the kidneys.
Define Exercise Physiology
Changes in cell and organ functions due to muscular activity.
Define Pathophysiology
Functional changes associated with disease and aging.
What are the SIX (6) levels of organization?
(1) Chemical Level
(2) Cellular Level
(3) Tissue Level
(4) Organ Level
(5) System Level
(6) Organismal Level
What is the CHEMICAL LEVEL of organization?
The basic level of structure. It includes atoms - the smallest units of matter and molecules - two atoms joined together. The most common atoms that make up life are carbon, hydrogen, oxygen, nitrogen, phosphorus, calcium, and sulfur. The most common molecule is DNA - the genetic material passed from one generation to the next and glucose (blood sugar).
What is the CELLULAR LEVEL of organization?
Molecules combine together to form cells, basic structural and functional units of an organism that are composed of chemicals. Cells are the smallest living units in the human body among many kind of cells such as muscle cells, nerve cells, and epithelial cells.
What is the TISSUE LEVEL of organization?
There are FOUR basic types of tissue in your body: epithelial tissue, connective tissue, muscular tissue, and nervous tissue.
What is the ORGAN LEVEL of structure?
At the organ level, different types of tissue are joined together. Organs are structures that are composed of two or more different types of tissues, they have specific functions and usually have recognizable shapes.
What is the SYSTEM LEVEL of structure?
A system consist of related organs with a common function. Sometimes an organ can be part of more than one system.
What is the ORGANISMAL LEVEL of structure?
All the parts of the human body functioning together constitute the total organism.
What is Epithelial Tissue?
It covers the body’s surfaces, lines hollow organs and cavities, and forms glands.