Human Body Unit Test Flashcards
Describe the Integumentary System
organ system that provides a protective covering around the body (skin, hair, nails)
describe the muscular system
primary function is movement and flexibility
describe the skeletal system
primary function is to support, protect, and allow body to move
describe the cardiovascular and circulatory systems
transports blood throughout the body
describe the respiratory system
takes in oxygen and expels carbon dioxide
describe the nervous system
sends electrical signals throughout the body
describe the digestive system
group of organs that digest food
describe the lymphatic system
collects extracellular fluid and returns it to the blood
define homeostasis
the maintenance of a constant internal state in changing environment
describe bones protect
different structures protect vital internal organs such as the lungs, heart, and kidney
describe what storage has to do with bones
bones store minerals that help your nerves and muscles and fat that can be used for energy
describe how muscles help you move
skeletal muscles pull on bones to produce movement
describe what bones have to do with blood cell formation
some bones contain marrow that produces blood cells
describe gliding joint
allows bones to glide over one another with some flexibility (hand+wrist)
describe ball-and-socket joints
lets you move freely in all directions (hips+shoulders)
describe hinge joints
ability to open and close like a door (knee, elbow)
