HIT 141 Chp 1 Flashcards
Anatomy
Study of the structure and organization of the body
2 subdivisions of anatomy
gross - dissection and examination of the body w/o magnifying lense.
microanatomy - microscopic exam of tissues and cells.
Physiology
Study of the function of the body and its parts
Levels of Organization
Chemical Cellular Tissue Organ Organ System Organism
Chemical level of organization
atoms and molecules
Cellular level of organization
cells containing organelles
Tissue level of organization
made up of similar cells that perform similar functions
Organ level of organization
two or more tissues that work together to perform specific functions
Organism level of organization
highest organizational level. The human organism as a whole.
Integumentary System
skin, hair, nails, and associated glands.
Protects underlying tissues and helps regulate body temperature.
Skeletal System
bones, ligaments, and associated cartilages.
supports body, protects organs, stores minerals, forms blood cells.
Muscular System
skeletal muscles, cardiac muscle of heart, smooth muscles of organs.
moves body and body parts, produces heat
Respiratory System
nasal cavity, pharynx, larynx, trachea, bronchi, lungs
exchanges O2 and CO2 between air and blood in lungs
Cardiovascular System
blood, heart, arteries, veins, and capillaries
transports materials to and from body cells
Lymphatic System
lymph, lymphatic vessels, lymphatic tissue
collects, cleanses, returns interstitial fluid to the blood, provides immunity
