A&p I.ch1.levels Of Organization

Front 1

Levels of Organization

Back 1

1. Chemical / Molecular
2. Cellular
3. Tissue
4. Organ
5. Organ System
6. Organism

Front 2

Chemical / Molecular Level

Back 2

Atoms, the smalles stable units of matter, can combine to form molecules with complex shapes

Front 3

Cellular Level

Back 3

Molecules can interact to form various types of organelles, each type of which has specific functions. Organelles are structural and functional components of cells.

Front 4

Tissue Level

Back 4

A tissue is a group of cells working together to perform one or more specific functions.

Front 5

Organ Level

Back 5

Organs consist of two or more tissues working in combination to perform several functions.

Front 6

Organ System Level

Back 6

Organs interact in organ systems.

Front 7

Organism Level

Back 7

An organism is the highest level or organization. All organ systems must work together to maintain the life and health of the organism.

Front 8

11 Interdependent Organ Systems of the Human Body

Back 8

1. Integumentary
2. Skeletal
3. Muscular
4. Nervous
5. Endocrine
6. Cardiovascular
7. Lymphoid
8. Respiratory
9. Digestive
10. Urinary
11. Reporductive

Front 9

Integumentary System
Major Organs

Back 9

1. Skin
2. Hair
3. Sweat Gland

Front 10

Inegumentary System
Functions

Back 10

1. Protects against environmerntal hazards
2. Helps regulate body temperature.
3. Provides sensory information.

Front 11

Skeletal System
Major Organs

Back 11

1. Bones
2. Cartilages
3. Associated ligaments
4. Bone marrow

Front 12

Skeletal System
Functions

Back 12

1. Provide support and protection for other tissues.
2. Stores calcium and other minerals
3. Forms blood cells.

Front 13

Muscular System
Major Organs

Back 13

1. Skeletal muscles and associated tendons

Front 14

Muscular System
Functions

Back 14

1. Provides movement.
2. Provides protection and support for other tissues.
3. Generates heat that maintains body temperature.

Front 15

Nervous System
Major Organs

Back 15

1. Brain
2. Spinal cord
3. Preipheral nerves
4. Sense organs

Front 16

Nervous System
Functions

Back 16

1. Directs immediate responses to stimuli
2. Coordinates or moderates activites of other organ systems
3. Provides and interprets sensory information about external conditions

Front 17

Endocrine System
Major Organs

Back 17

1. Pituitary gland
2. Thyroid gland
3. Pancreas
4. Suprarenal glands
5. Gonads (testes and ovaries)
6. Endocrine tissues on other systems

Front 18

Endocrine System
Functions

Back 18

1. Directs long-term changes in the activites of other organ systems
2. Adjusts metabolic activity and energy use by body
3. Controls many structural and functional changes during development

Front 19

Cardiovascular System
Organs

Back 19

1. Heart
2. Blood
3. Blood Vessels

Front 20

Cariovascular System
Functions

Back 20

1. Dustributes blood cells, water, and dissolved materials, including nutrients, waste products, oxygen, and carbon dioxide.
2. Distributes heat and assists in control of body temperature.

Front 21

Lymphoid System
Major Organs

Back 21

1. Spleen
2. Thymus
3. Lymphatic vessels
4. Lymph nodes
5. Tonsils

Front 22

Lymphoid System
Functions

Back 22

1. Defends against infection and disease
2. Returns tissue fluids to the bloodstream

Front 23

Digestive System
Major Organs

Back 23

1. Teeth
2. Tongue
3. Pharynx
4. Esophagus
5. Stomach
6. Small Intestine
7. Large Intestine
8. Liver
9. Gallbladder
10. Pancreas

Front 24

Digestive System
Funtions

Back 24

1. Processes and digests food
2. Absorbs and conserves water
3. Absorbs nutrients (ions, water, and the breakdown of products of dietary sugars, proteins, and fats)
4. Stores energy reserves

Front 25

Male Reproductive System
Major Organs

Back 25

1. Testes
2. Epididymides
3. Ductus deferens
4. Seminal vesicles
5. Prostate gland
6. Penis
7. Scrotum

Front 26

Male Reproductive Organs
Functions

Back 26

1. Produces male sex cells (sperm), suspending fluids and hormones
2. Sexual intercourse

Front 27

Respiratory System
Major Organs

Back 27

1. Nasal Cavities
2. Sinuses
3. Larynx
4. Trachea
5. Bronchi
6. Lungs
7. Alveoli

Front 28

Respiratory System
Functions

Back 28

1. Delivers air to alveoli (sites in lungs where gas exchange occurs)
2. Provides oxygen to bloodstream
3. Removes carbon dioxide from bloodstream
4. Produces sounds for communication

Front 29

Urinary System
Major Organs

Back 29

1. Kidneys
2. Ureters
3. Urinary bladder
4. Urethra

Front 30

Urinary System
Functions

Back 30

1. Excretes waste products from the blood
2. Controls water balance by regulating volume of urine produced
3. Stores urine prior to voluntary elimination
4. Regulates blood ion concentrations and pH