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A&P Chapter 1.2
The Organ Systems
| Term | Definition |
|---|---|
| growth | where "building" outweighs "breaking down" |
| excretion | eliminate harmful waste products |
| responsiveness | ability of organisms to react to changes in their environment and maintain homeostasis |
| reproduction | ability to reproduce |
| cellular composition | all life is made up of cells |
| What is the most important characteristic of a living organism? | reproduction |
| What's the smallest and least complex level of structural organization? | chemical level |
| What's the chemical level? | atoms and molecules |
| What's the second smallest structure of the levels of structural organization? | cellular level |
| What's the cellular level? | cells |
| What's the third smallest level of structural organization? | tissue level |
| What's the tissue level? | related cells |
| What's the third largest level of structural organization? | organ level |
| What's the organ level? | several tissue types together |
| What's the second largest level of structural organization? | organ systems |
| What's the largest and most complex level of structural organization? | organism |
| regulation | able to adjust internal bodily function in response to environmental changes |
| What are the main functions of the integumentary system? | retain fluids and protect internal structures |
| What does the integumentary system consist of? | skin, breasts, sweat glands, and nails |
| What are the main functions of the skeletal system? | gives body structure and allows movement through fulcrum patterns |
| What does the skeletal system consist of? | bones, cartilages, ligaments, and bone marrow |
| What are the main functions of the muscular system? | provide movement and generate heat when contracted |
| What does the muscular system consist of? | muscles and tendons |
| What are thee main functions of the nervous system? | respond to sensory stimuli and control muscles and some glands |
| What does the nervous system consist of? | brain, spinal cord, peripheral nerves, and sense organs |
| What are the main functions of the endocrine system? | secrete hormones into blood |
| What does the endocrine system consist of? | pituitary gland, thyroid gland, pancreas, adrenal glands, gonads and their hormones |
| What are the main functions of the cardiovascular system? | pump blood through the body in order to distribute oxygen, CO2, nutrients, and electrolytes throughout entire body |
| What does the cardiovascular system consist of? | heart, blood, blood vessels, and capillary beds |
| What are the main functions of the respiratory system? | pump air in and out and exchange oxygen and CO2 |
| What does the respiratory system consist of? | nasal cavities, sinuses, larynx, trachea, bronchioles, and lungs |
| What are the main functions of the lymphatic system? | drain any fluid from between cells and inspection |
| What does the lymphatic system consist of? | spleen, thymus, lymph nodes, and tonsils |
| What is the function of the lymphatic capillaries? | collect fluid from between cells |
| What purpose does the interstitial space in the lymphatic system serve? | keep a slight vacuum between cells so material always flows. |
| What is lymph? | lymphatic fluid collected and carefully inspected in nodes, spleen, thymus and by immune cells called lymphocytes |
| What are the main functions of the digestive system? | digest food, absorb nutrients, and expel waste products |
| What does the digestive system consist of? | teeth, tongue, pharynx, esophagus, stomach, intestines, liver, gallbladder, and pancreas |
| What are the main functions of the urinary system? | filters blood to remove waste products and concentrate waste products in the form of urine |
| What does the urinary system consist of? | kidneys, urethra, bladder, and ureters |
| What are the main functions of the male reproductive system? | produce sex cells and hormones, and transfer sperm to female |
| What does the male reproductive system consist of? | testes, prostate gland, penis, scrotum, epididymis, ductus deferens, seminal vesicles |
| What are the main functions of the female reproductive system? | reproduce a human |
| What does the female reproductive system consist of? | ovaries, uterine tubes, uterus, vagina, labia, clitoris, mammary glands |
Created by:
aslayton
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