Transcript Introduction to Human Body Systems

Introduction to Human
Body Systems
Circulatory system
► Role:
Transports
substances throughout
the body
► Circulates
oxygen, CO2
heat, water, nutrients,
wastes
► Major
organs: Heart,
Arteries, Veins
Excretory System
► Role:
Filters wastes
from blood; maintains
bodies internal nutrient
balances
► Also
rids body of
wastes via urethra
► Major
organs: Kidneys,
Urethra, Bladder
Digestive System
► Role:
Breaks down
macromolecules and
absorbs necessary
nutrients
► Major
organs:
Stomach, L.I., S.I.
► Liver
serves multiple
functions for multiple
systems (but is
considered part of
DS)
Reproductive System
► Role:
Producing
offspring; regulating
sexual characteristics
► Major
organs: Testes,
Uterus, Ovaries
Skeletal System
► Provides
body
structure and support
► Bone
marrow creates
new blood cells for
circulation;also stores
lipids
► Major
organs: bones,
cartilage
Muscular System
► Role:
allows for
movement
► Major
organs: skeletal
muscle
Nervous System
► Control
system of body
► Major
organs: Brain,
Spinal cord, nerves
► Stimulates
heart rate
and controls blood
oxygen levels
Integumentary System
► Role:
Protects body;
transfer of heat;
sensory reception
► Major
nails
organs: skin,
► Releases
sweat, and
heat from blood, to
help control body
temperature
Endocrine System
► Role:
Circulates
hormones around the
body to control body
functions; maintains
homeostasis
► Major
organs: Pituitary,
Thyroid, Adrenals,
Pancreas,hypothalmus
Lymphatic System
► Role:
Works to help
maintain ciculatory
system as well as
housing cells
responsible for
immunity
► Major
nodes
organs: Lymph
Respiratory System
► Ventilation
body
system for
► Major
organs: lungs,
diaphragm, trachea
► Takes
in oxygen and
releases carbon
dioxide from blood