the study of the form of an organism's structures
the study of the functions of those structures.
an integrated group of similar cells that preform a common function.
a structure consisting of several tissues adapted as a group to perform specific functions.
A group of organs that work together in preforming vital body functions
Epithelial Tissue (Epithelium)
A sheet of tightly packed cells lining organs, body cavaties and external surfaces
Tissue consisting of a spare population of cells held in an abundant extracellular matrix, which they produce
Loose Connective Tissue
The most widespread connective tissue in the vertebrate body. It binds epithelia to underlying tissues and functions as packing matera, holding organs in place.
Fibrous Connective Tissue
A dense tissue with large numbers of collagenous fibers organized into parallel bundles. This is the dominant tissue in tendons and ligaments
A type of connective tissue whose cells contain fat
A flexible connective tissue consisting of living cells and collagenous fibers embedded in a rubbery matrix
A type of connective tissue consisting of living cells held in a rigid matrix of collagen fibers embedded in calcium salts
A type of connective tissue with a fluid matrix called plasma in which blood cells are suspended
Tissue consisting of long muscle cells that are capable of contracting when stimulated by nerve impulses; the most abundant tissue in a typical animal
Striated muscle attatched to the skeleton. The contraction striated muscles produces voluntary movements of the body
Striated muscle that forms the contractile tissue of the heart
Muscle made up of cells without striations, found in the walls of organs such as the digestive tract, urinary bladder, and arteries
Tissue made up of neurons and supportive cells
A nerve cell; the fundamental structural and functional unit if the nervous system, specialized for carrying signals from one location in the body to another
The organ system consisting of ductlessglands that secrete hormones and the molecular receptors on or in target cells that respond to the hormones; cooperates with the nervous system in regulating body functions and maintaining homeostasis
The organ system that provides bdy support and protects body organs such as the brain, heart and lungs
The organ system that transports materials such as nutrients, O2, and hormones to body cell and transports CO2 and other wastes from body cells.
The organ system that functions in exchanging gases with the enviroment. It supplies the blood with O2 and disposes of CO2
All the skeletal muscles in the body.
The organ system consisting of the skin and its derivatives, such as hair and nails in mamals; protect the body from drying out, mechanical injury, and infection.
The vertebrate organ system through which lymph circulates; includes lymph vessels, lymph nodes, and the spleen. The lymphatic system helps remove toxins and pathogensfrom the blood and interstitial fluid to the circulatory system
An animal's body system of defenses against agents that cause disease
The organ system that forms and excretes urine while regulating the amount of water and irons in the body fluids
The organ system involved in ingestion and digestion of food, absorption of nutrients and elimination of wastes
The body organ system responsible for reproduction
The organ system that forms a communication and coordination network between all parts of an animal's body.
An aqueous solution that surrounds body cells and through which materials pass back and forth between the blood and the body tissues
The steady state of body functioning; a state of equilibrium characterized by a dynamic interplay between outside forces that tend to change an organism's internal environment and the internal control mechanisms that oppose such changes
A common control mechanism in which a chemical reaction, metabolic pathway, or hormone-secreting gland is inhibited by the products of the reaction, pathway or gland. As the concentration of the products builds up, the product molecules themselves inhibit the process that produced them.