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Human Anatomy 1.2
Organ Systems, Body Cavities, and Quadrants
| Term | Definition |
|---|---|
| Respiratory System | Maintains blood oxygen and carbon dioxide levels. |
| Nervous System | Controls muscles and glands by electrical impulses; helps control homeostasis. |
| Muscular System | Causes movement of bones, movement of food, and pumps blood. |
| Integumentary System | Waterproof barrier that blocks the entrance of pathogens into the body and the loss of water from the body. |
| Cardiovascular System | Transports nutrients, oxygen, and carbon dioxide throughout the body. |
| Digestive System | Changes food into absorbable nutrients; expels waste. |
| Urinary System | Regulates composition of blood by eliminating nitrogenous wastes, excess water, and minerals. |
| Endocrine System | Uses hormones to control cell function; helps control homeostasis. |
| Skeletal System | Provides framework for the body and guards body organs. |
| Reproductive System | Produces gametes. |
| Immune System | Returns fluids to the bloodstream and provides protection against pathogens that have entered the body. |
| Organ components of the Integumentary System | Skin, hair, fingernails, sweat glands, oil glands. |
| Organ components of the Skeletal System | Bones, Joints, cartilage. |
| Organ components of the Muscular System | Tissue, Brain |
| Organ components of the Nervous System | Brain, spinal cord, nerves, eyes and ears. |
| Organ components of the Endocrine System | Glands, pancreas, ovaries, testes, thymus. |
| Organ components of the Cardiovascular System | Blood, heart, blood vessels. |
| Organ components of the Immune System | Lymph nodes, tonsils, spleen, B & T cells. |
| Organ components of the Respiratory System | Lungs, larynx, trachea, pharynx, bronchial tubes. |
| Organ components of the Digestive System | Mouth, esophagus, pharynx, stomach, small & large intestines, anus, salivary glands, gallbladder, pancreas. |
| Organ components of the Urinary System | Kidneys, ureters, urinary bladder, urethra. |
| Organ components of the Reproductive System | Gonads, testes, ovaries, uterus, mammary glands, ductus, prostate, epididymis. |
| Cranial cavity | Formed by cranial bones and contains brain. |
| Vertebral cavity | Formed by vertebral column, contains spinal cord and nerves. |
| Thoracic cavity | Chest cavity, contains pleural cavity, pericardial cavity, and mediastinum. |
| Abdominopelvic cavity | Subsided into abdominal and pelvic cavities. |
| Pleural cavity (Thoracic) | Surrounds lungs. Outer to inner; parietal pleura, pleural cavity, visceral pleura. |
| Pericardial cavity (Thoracic) | Surrounds heart. Outer to inner; parietal pericardium, pericardial cavity, visceral pericardium. |
| Mediastinum (Thoracic) | Between lungs, from sternum to vertebral. |
| Abdominal cavity (Abdominopelvic) | Contains everything intestines and above, and below lungs. |
| Pelvic cavity (Abdominopelvic) | Below intestines, includes some large intestine. |
| Ventral cavity | Both Thoracic and Abdominopelvic cavities. |
| Diaphram | Between Thoracic and Abdominopelvic cavities. |
| Dorsal cavity | Both Cranial and Vertebral cavities. |
| Lesser omentum (Abdominal) | Between liver and stomach. |
| Greater omentum (Abdominal) | Large intestine area. |
| Mesentery (Abdominal) | Small intestine area. |
| Right upper | Right Hypochondriac |
| Upper middle | Epigastric |
| Left upper | Left Hypochondriac |
| Right middle | Right Lumbar |
| Middle middle | Umbilical |
| Left middle | Left Lumbar |
| Right lower | Right inguinal |
| Lower middle | Hypogastic |
| Left lower | Left inguinal |