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79 Cards in this Set

  • Front
  • Back
Nervous system
serves as the body's control system; consists of the brain, spinal cord, and nerves
Lymphatic system
supports the immune system by housing and transporting white blood cells to and from lymph nodes; returns fluid that has leaked from the cardiovascular system back into the blood vessels; consists of the lymph nodes, the lymph vessels spleen, the thymus, and tonsils.
Respiratory System
organ system that provides for air exchange by supplying tissues with oxygenated blood and removing carbon dioxide.
Reproductive system
main purpose is to produce off springs; houses hormones that encourages or suppress activities within the body (i.e. libido and aggression) and influences the development of masculine or feminine body characteristics; consists of the testes and penis or the ovaries, vagina and breasts.
Urinary System
helps maintain the water and electrolyte balance within the body and regulates the acid-base balance of the blood; removes all nitrogen containing wastes from the body.
Muscular
consists of skeletal muscle, tendons that connect muscles to bones, and ligaments that attach bones together to form joints.
Integumentary system
protects internal tissues from injury, waterproofs the body, and helps regulate body temperature; serves as a barrier to pathogens; consists of the skin, mucous membranes, hair, and nails.
Endocrine system
controls body functions; glands in this system secrete hormones that travel through the blood to organs throughout the body to regulate processes such as growth and metabolism.
Digestive system
manufactures enzymes that break down food so that nutrients can be easily passed into the blood for use through the body; consists of all the organs from the mouth to the anus involved in the ingestion, breakdown and processing of food.
Circulatory system
transportation highway for the entire body (also known as the cardiovascular system).
Nervous tissue
structure for the brain, spinal cord, and nerves.
Muscle tissue
dedicated to producing movement; three types include skeletal, cardiac and smooth.
Epithelial tissue
provides covering (such as skin tissue) or produces secretions (such as glandular tissue); commonly exists in sheets and does not have its own blood supply.
Immigration
act of an individual moving into a region or country live.
Binormal nomenclature
two-word naming system that includes the universally accepted genus and species of each organism; developed by Carolus Linnaeus.
Taxonomy
classification of organisms taxons; names reflect the organism's evolutionary heritage.
Emigration
act of an individual moving out of one region or country to live in another.
Arteries

blood vessels that transport blood away from the heart to the capillaries.
Heart
Organ that rhythmically contracts and pumps blood throughout the body.
Capillaries
tiny blood vessels that transport blood between arteries and veins within the body.
Anatomy
study of the structure of various organs and body systems.
Physiology
study of the function of the various organs and body systems.
lungs
paired organs that take in oxygen and exhale carbon dioxide.
Trachea

airways that connects the larynx to the bronchial tubes; also known as the windpipe.
Bronchial tubes
small respiratory passages that connect the trachea to the lungs.
Cilia
tiny hairs in the bronchial tubes that keep the airway clear by removing unwanted matter from the lungs.
Alveoli
structure in the lungs that permits the exchange of oxygen and carbon dioxide to occur.
Diaphragm
dome-shaped muscle located immediately below the lungs that stimulates inhalation and exhalation by contracting and relaxing.
Inspiration
act of breathing in oxygen air.
Expiration
act of exhaling the carbon dioxide from the body.
Peripheral Nervous System (PNS)
branch of the nervous system that extends outside of the central nervous system and consists of the cranial and spinal nerves.
Autonomic Nervous System
branch of the peripheral nervous system that controls automatic body functions like heartbeat and digestion.
Central Nervous System (CNS)
branch of the nervous system that includes the brain and spinal cord.
Parasympathetic Nerves
branch of the automatic nervous system that is active when a person is eating or at rest.
Sympathetic Nerves
branch of automatic nervous system that is activated when a person is excited or scared.
sensory-somatic nervous system
part of the peripheral nervous system that consists of 12 pairs of cranial nerves, 31 pairs of spinal nerves, and associated ganglia, controls voluntary actions of the body.
Ganglia
collection of nerve cell bodies
Dendrites
branched extensions of the neuron that receive impulses (electric messages) from other neurons and stimuli.
Neurons
specialized cells that make up the nervous system and transmit electrical impulses.
Phagocytosis
engulfing of pathogens by white blood cells.
Synpapse
fluid-filed gap that connects the axon of one nerve cell with the cell body of another.
Stimuli
change in the environment that triggers a physical response.
Sensory Neurons
neurons that carry messages from sense organs to the brain and spinal cord.
Microvilli
microscope projections of tissues that make up the villi.
Digestion
mechanical and chemical breakdown of foods.
Enzymes
Protein catalyst; chemical that changes the rate of a chemical reaction in living tissue without itself being chemically altered; a chemical that breaks down protein, carbohydrates, and fats into nutrients that can be absorbed through the wall of the intestine into the bloodstream.
Duodenum
first section of the small intestine.
Chyme
mixture of food, chemicals and enzymes in the stomach.
Pyloric Sphincter
muscle that separates the stomach from the duodenum and slowly releases chime from the stomach into the stomach into the small intestine (duodenum).
Villi
finger-like projections in the mucosa of the small intestine lining; produce a pleated appearance; each villus is supplied with blood and has lymphatic vessels for absorption.
Pathogens
any disease-causing agent.
Perforins
pore-forming protein
lyse
latin wood for "break"; used in biology and chemistry to mean rupture or destruction of the cell membrane, a cell structure, or a molecule.
Interferons
protein that inhibits the reproduction of a virus.
Chemotaxis
release of chemicals by damaged cells that attract white blood cells.
Leukocytes
white blood cells
Cytokines
chemicals that are released by damaged tissues.
Diapedesis
process of white blood cells squeezing through the capillary slits in response to cytokines.
Antibodies
protein produced by a B cell in response to an antigen.
Antigen
a foreign protein, such as a pathogen, that stimulates antibody production.
B cells
type of lymphocyte that produces antibodies in response to antigens; responsible for humeral immunity.
Vaccine
inactivated from a pathogen that stimulates the body to produce antibodies for future protection.
T Cell
lymphocyte that is responsible for cellular immunity.
fertility rates
average number of children a woman will have during her childbearing years (from the ages 15-44).
Crude birth rate
number of childbirths per 1,000 people per year.
Crude death rate
number of deaths per 1,000 people per year.
Connective tissue
connects different structures of the body; includes bones, cartilage, adipose tissue (fats), and blood vessels.
Effectors
glands and muscles and extended away from the spinal cord.
Reflex
automatic response to a stimulus that occurs when neurons transmit a message to the spinal cord, which in turn sends a message back to the muscles to react before the message is transmitted to the brain.
Skeletal system
supports and protects the body and it's organs; supplies a framework that, when used in conjunction with the muscles, creates movement; serves as storage for minerals, such as calcium and phosphorus; consists of bones, cartilage, ligaments and joints.
Organisms come _____ in the order of the human body.
First
Organ systems come _____ in the order of the human body.
Second
Organs come _____ in the order of the human body.
Third
Tissue come _____ in the order of the human body.
Fourth
Cells come _____ in the order of the human body.
Fifth
Molecules come _____ in the order of the human body.
Sixth
Atoms come _____ in the order of the human body.
Seventh
The Respiratory system supplies the body with _______ and removes _______.
Oxygen and carbon dioxide
It is through the walls of the ______ that oxygen and carbon dioxide move in and out of the capillaries in the lungs.