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48 Cards in this Set

  • Front
  • Back
Study of the structure of living organisms.
Study of the function of living organisms.
The smallest part of an element; indivisible by ordinary chemical means.
The structural and functional unit of living organisms; contains a nucleus and a variety of organelles enclosed by a limiting membrane.
A group of similar cells (and their intercellular substance) specialized to perform a specific function; primary tissue types of the body are epithelial, connective, muscle, and nervous tissue.
A part of the body formed of two or more tissues and adapted to carry out a specific function; e.g., the stomach.
Organ system
A group of organs that work together to perform a vital body function; e.g., the nervous system.
The living animal (or plant), which represents the sum total of all its organ systems working together to maintain life.
Integumentary system
Skin and its derivatives; provides the external protective covering of the body.
Skeletal system
System of protection and support composed primarily of bone and cartilage.
Muscular system
The organ system consisting of the skeletal muscles of the body and their connective tissue attachments.
Nervous system
Fast-acting control system that triggers muscle contraction or gland secretion.
Endocrine system
Body system that includes internal organs that secrete hormones.
Cardiovascular system
Organ system which distributes the blood to deliver nutrients and remove wastes.
Lymphatic system
System consisting of lymphatic vessels, lymph nodes, and other lymphoid organs and tissues; drains excess tissue fluid from the extracellular space and provides a site for immune surveillance.
Respiratory system
Organ system that carries out gas exchange; includes the nose, pharynx, larynx, trachea, bronchi, lungs.
Digestive system
System that processes food into absorbable units and eliminates indigestible wastes.
Urinary system
System primarily responsible for water, electrolyte, and acid-base balance and removal of nitrogenous wastes.
Reproductive system
Organ system that functions to produce offspring.
What are the 6# Levels of Structural Orginization?
1. Chemical Level
2. Cellular Level
3. Tissue Level
4. Organ Level
5. Organ System Level
6. Organismal Level.
What Happens at the
1. Chemical Level?
Atoms combine to form molecules.
What Happens at the
2. Cellular Level?
Cells are made up pf molecules.
What Happens at the
3. Tissue Level?
Tissues consist of similiar types of cells.
What are the 3# types of tissue structures?
1. Epithelial
2. Smoooth muscle
3. Connective
What does the Skeletal System provide for?
*Protects and supports body organs,
* Provides muscle attatchments for movement
i.e. "leevers".
What does the Muscular System provide for?
*Allows locomotion.
*Maintains posture.
*Produces heat. "shivering"
What does the Integumentry Sytem provide for?
*Forms the external bodies organs.
*Protects us from infection.
What does the Nervous System provide for?
*Responds to external & Internal change.
*Activates muscles and glands.
What does the Cardiovascular System provide for?
*Transports materials in the body via blood pumped by the heart.
What does the Endocrine System provide for?
*Secretes regulatory hormones.
*Growth production.
What does the Lymphatic System provide for?
*Returns fluid to bllod vessals.
*Disposes of debri's
*Involved in immunity.
Abnormal accumulation of fluid in body parts or tissues; causes swelling.
What does the Respiratory System provide for?
*Keeps blood supplied w/oxygen.
*Removes carbon dioxide.
What does the Digestive System provide for?
1.Breaks down.
What does the Urinary System provide for?
*Eliminates nitrogenous wastes.
*Water balance.
Regulates materials.
What does the Reproductive System provide for?
*Production of offspring.
Male XX
Female XY
What are the Necessary Life functions?
1.Maintain Boundaries
What does the Human Body need to SURVIVE?
3/Atmospheric Pressure
A state of body equilibrium or stable internal environment of the body.
Homeostatic Imbalance
A disturbance in Homeostasis, resulting in disease.
Feedback Mechanisms
1/Negative feedback.
*Imbalnce of homeostasis
2/Positive feedback.
*Clotting,& childbirth
Away from the midline of the body.
Toward the attached end of a limb or the origin of a structure.
Away from the attached end of a limb or the origin of a structure.
Near or at the surface.
Chemical or mechanical process of breaking down foodstuffs to substances that can be absorbed.
Sum total of the chemical reactions occuring in the body cells.
Sagittal section
A longitudinal (vertical) plane that divides the body or any of its parts into right and left portions.