levels of organization Flashcards
List and Define the six levels of organization.
Chemical- human cells composed of 60%-80% water.
Tissues- groups of cells
Cells- basic unit of all living things
Organs- two or more tissues that work together to perform a specific function.
Systems- group of organs/ components working together to perform a specific function.
Body/Organism- individual form of life- body made up of organelles or organs that work together to carry on life.
What are five tissue types that are found within the body?
Connective Epithelial Muscle Nerve Liquid
Explain the differences between the 3 types of muscle tissue.
Striated, control over our body & limbs.
Non Striated, these muscles contract on their own / inconscious control.
Cardiac, Striated appearance - involuntary
DIGESTIVE SYSTEM (function and component)
Breaks down food into soluble (soupy mush) form to allow nutrients to be absorbed into the body.
- Mouth * Pancreas
- Esophagus * Gallbladder
- Stomach *Salivary Glands
- Small + Large Intestines
RESPIRATORY SYSTEM (function and component)
Supplies the body with oxygen and eliminates carbon dioxide.
- Mouth
- Nasal Cavities
- Trachea
- Lungs
- Pharnyx
MUSCULAR SYSTEM (function and component)
Covers and protects skeleton and internal organs - Movement
- Tendons
- muscles ( skeletal, smooth, and cardiac)
- fascia
Integumentary System (function and component)
Covers and protects
- hair, skin, nails
- exocrine glands (sebaceous, sudoriferous glands)
NERVOUS SYSTEM (function and component)
Controls and coordinates all body functions through the transmission of neuroelectrical messages.
- Brain
- Nerves
- Spinal cord
ENDOCRINE SYSTEM (function and component)
Controls and coordinates all body functions through the release of chemical messengers called hormones.
- Pineal Gland
- Thyroid
- Ovaries and testes
- Pituitary Gland
- Adrenal Gland
REPRODUCTIVE SYSTEM (function and component)
Responsible for the recreating of the human race.
*Gonad
OVARIES
TESTES
CARDIOVASCULAR SYSTEM (function and component)
transports blood throughout the body.
- Heart
- Blood
- Blood Vessels
- Arteries
- Veins
LYMPHATIC SYSTEM (function and component)
Protects the body from disease by filtering and destroying harmful toxins and bacteria.
- Lymph
- Lymph Vessels
- Lymph Nodes
- Spleen
- Tonsils
URINARY SYSTEM (function and component)
Filters the blood of any soluble wastes, transforming them into urine and expels them from the body.
SKELETAL SYSTEM (function and component)
Provides the physical framework for the body and protects internal organs.
- Bones
- Cartilage
- Ligaments
- Ligaments
Reproduction
To ensure the continuation of the human race.