Muscular System
Functions:
Helps you move
Provides stability (balance)
Protects body & organs
Regulates body temperature
Major parts/organs:
Skeletal muscles
Smooth muscles
Cardiac muscles
Muscular System
Interactions: Works with bones to help you move
Works with digestive system organs to help move food along
Works with circulatory system to help heart pump blood
Maintaining Homeostasis: Helps regulate body temp. (shivering)
Pumping heart faster when more oxygen is needed
Skeletal System
Functions:
Provides support
Helps you move
Protects internal organs
Produces blood cells & stores fat & calcium
Major parts/organs:
Compact & spongy bone tissue
Bone marrow
Cartilage
Skeletal System
Interactions:
Works with muscles to help you move
Supplies blood cells for circulatory system
Maintaining Homeostasis:
Supplies calcium to your nerves, muscles, and heart
Digestive System
Functions:
Ingesting food (eating)
Digesting food – breaking it down into nutrients
Absorbing nutrients
Getting rid of wastes
Major parts/organs:
Mouth, esophagus, stomach, small intestines, large intestines
Digestive System
Interactions:
Works with muscular system to move food through the body
Works with the excretory system to get rid of wastes
Maintaining Homeostasis:
Provides nutrients that are carried by the circulatory system (blood) throughout the body, which provides energy
Excretory System
Functions:
Collecting & eliminating wastes
Regulating the level of fluid in the body
Major parts/organs:
Kidneys
Ureters
Urethra
Bladder
Excretory System
Interactions:
Works with nervous system to regulate fluid levels in body
Works with digestive system to get rid of wastes
Works with circulatory system to regulate blood pressure
Maintaining Homeostasis:
Filters waste from the blood
Removes wastes from digestive system
Respiratory System
Functions:
Taking in oxygen
Eliminating carbon dioxide
Major parts/organs:
Pharynx
Larynx & trachea
Bronchi & lungs
Alveoli
Respiratory System
Interactions:
Works with muscular system to help you breathe
Maintaining Homeostasis:
Works with circulatory system to bring oxygen to cells & get rid of carbon dioxide
Circulatory System
Functions:
Carries food, water, oxygen, & other materials to your body’s cells
Carries away waste materials
Major parts/organs:
Heart
Blood vessels: arteries, veins, capillaries
Circulatory System
Interactions:
Works with respiratory system to transport oxygen to cells
Works with digestive system to transport nutrients
Transports hormones from the endocrine system
Maintaining Homeostasis:
Works with nervous system to regulate heartbeat
Lymphatic System
Functions:
Absorbs tissue fluid from around cells
Absorbs fats & transports them to blood (circulatory system)
Filters dead cells, viruses, bacteria, & other unneeded particles
Helps fight off illness & infections
Major parts/organs:
Lymph, lymph vessels, lymph nodes
Bone marrow, thymus, spleen, tonsils
Lymphatic System
Interactions:
Works with circulatory system to clean fluids & replace them in the bloodstream
Works with digestive system to absorb & transport fats
Maintaining Homeostasis:
Helps regulate fluid buildup around cells
Nervous System
Functions:
Gathers information from senses
Responds to stimuli (change in internal or external environment)
Maintains homeostasis
Major parts/organs:
Neurons (nerve cells)
Central nervous system: brain & spinal cord
Peripheral nervous system
Nervous System
Interactions:
Works with muscles to move
Works with circulatory system to regulate heartbeat
Works with respiratory system to breathe
Maintaining Homeostasis:
Senses changes in environment & responds by sending signals to other systems
Reproductive System
Functions:
Male: produce sperm cells
Female: produce egg cells & to nourish & protect the developing human (fetus)
Major parts/organs:
Male: testis, penis, sperm
Female: ovary, egg, vagina, uterus
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