Science test Flashcards
A ____ is a group of cells that work together to perform a certain function.
Tissues
tissues that line the external and interanal sufaces of your body.
Epithelial
________ _______ contracts either to move your body or to move substances through your body.
muscle tissue
________ ___ receives and transmits electrochemical impulses to coordinatde the function of the body
nerve tissues
______ are groups of tissues that work together to perform a certain function
organs
Organs with similar function are grouped together into ________ ______
organ system
Your _____________ __________ includes your skin, hair, and nails.
integumentary system
________ can penetrate the skin
pathogens
the outer layer of skin is called the
epidermis
the inner thicker layer of the skin is the
dermis
teh ____________ _________ below the dermis is not really a part of the skin
subcutaneous layer
An area of thickend epidermis is called
callus
A dark pigment called _____ causes much of the color of human skin
melanin
________ is more flexible than bone becuase its nonliving material
cartilage
is also a type of connective tussue
bone
Many bones contain a long central chamber called a
marow cavity
a bone’s surface is usually covered with at ough white tissue called the _________
periosteum
these are tough flexible bands of connective tussue that connect bones to bones at joints
ligaments
these are bands of connective tussue that connect muscles to bones
tendons
a _____ is a place where two or more bones meet
joint
Elbow and knee joints are called _______ joints
hinge
the joints between teh vertebrae of the back are ______ joints
gliding
The joint between the radius and ulna of the forearm near the elbow is a
pivot joint
Muscles that you can control at will are called
voluntary muscles
the muscles that move your skeleton are called
skeletal muscles
muscles tissue that you cannot contrl at will is involuntary muscle.
involuntary muscle
the study of the functions of a living organism and its parts
physiology
the study of the shape and structure of an organism and its parts
anatomy
these are disease causeing organisms
pathogens
form when the skin is exposed quickly to excessive friction or intesne heat
blisters
