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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 |