bio 17 Flashcards
life is characterized by a ____ of organization
heirarchy
in animals
inidividual cells are grouped into ____
tissues are combined to form ____
organs and organized into ____ ____
organ systems make up the entire ___
tissues
organs
organ system
entire organism
a tissue is a group of cells of similar structure and ____
function
4 catergories of animal tissue
connective tissue
epitheleal tissue
muscle tissue
nervous tissue
what is epitheleal tissue
forms coverings and linings in a human body, contains tightly packed cells
what are connective tissues
provides support and connects many parts of the body, contains scattered cells
what is nervous tissue
innervates and allows communication between cells
what is muscular tissue
capable of contracting in response to nerve signals
what is an organ and what does it consist of
consists of two or more tissues packaged into one working unit that performs a specific function
what are organ systems
teams of organs that work together and perform vital body function
purpose of the digestive system
breaks down food and absorbs nutrients
function of circulatory system
transports substances throughout body
function of respiratory system
exchanges oxygen for carbon dioxide between blood and air
function of urinary system
eliminates certain waste products
function of reproductive system
produces gametes and offspring
function of integumentary system
protects body
function of skeletal system
supports body and anchors muscles
function of muscular system
moves the body
function of endocrine system
secretes horomones that regulate the body
function of lymphatic and immune system
defends against disease
function of nervous system
processes sensory info and controls responses
