Body Systems 1
Protects underlying tissues; regulates body temperature
Integumentary System
Early healers relied on ___ and performed ___
Superstitions/magic
Most abundant chemical in the body
Contains the brain
Cranial cavity
Provides body movement, posture, and body heat
Muscular System
Skeletal System
Used to treat ailments before medication was around
Herbs/natural chemicals
Divides the body into anterior/ventral (front) and posterior/dorsal (back) sections
Frontal Plane
Muscle that separates the thoracic and abdominopelvic cavities
Diaphragm
Cells communicate with each other via neurotransmitters
Nervous System
Exchanges O2 and CO2
Respiratory System
Method used to gather information about the natural world and workings of the body
Scientific Method
Divides the body into EQUAL left and right halves
Midsagittal Plane
Contains stomach, intestines, and reproductive organs
Abdominopelvic cavity
Distributes O2, CO2, nutrients, and removes waste
Cardiovascular System
Defends the body against infection
Lymphatic System
Atoms, molecules, and macromolecules make up the ___ level
Chemical
Divides the body into superior (top) and inferior (bottom) sections
Surrounds the heart
Pericardial membrane
Receives, breaks down, and absorbs nutrients from food while excreting waste
Digestive System
Secretes hormones and regulates metabolic processes
Endocrine System
Largest level of body organization
Organism
Any of 4 characteristics of life shared by all organisms
Growth, reproduction, responsiveness, movement
Line the walls of cavities
Parietal membranes
Produces, stores, and eliminates liquid waste
Urinary System
Produces and maintains sperm
Male Reproductive System
Made of various cells working together
Tissues
Any of 4 metabolism processes
Respiration, Digestion, Circulation, Excretion
Covers the internal organ
Visceral membrane
Produces ova, prepares for fertilization, houses offspring
Female Reproductive System