Intro to A&P Flashcards
Anatomy
Study of structures in the human body
Physiology
Study of functions of the human body
How many levels of Biological organization
6
What are the levels of biological organization from smallest to largest
- Chemicals 2. Cells 3. Tissues 4. Organs 5. Organ Systems 6. Organisms
How many organ systems are in the human body
11
What organ system contains the Skin and provides protection
Integumentary system
What organ system contains the bones and provides protection, support, and hemopoiesis
Skeletal system
What organ system contains the muscles and provides movement and body temperature regulation
Muscular system
What organ system contains the brain, spinal cord, and nerves
Nervous system
What organ system contains the glands and provides control/regulation
Endocrine system
What organ system contains the heart and blood vessels
Cardiovascular system
What organ system contains the spleen and lymph nodes and provides immune protection
Lymphatic system
What organ system contains the lungs and air ways
Respiratory system
What organ system contains the GI tract and accessory organs
Digestive system
What organ system contains the Kidneys and bladder
Urinary system
What organ system contains the gonads
Reproductive system
What is the body’s way of maintaining a stable state
Homeostasis
What happens when conditions in the body are not maintained
Homeostatic imbalance/ illness
What are the 2 ways homeostasis can be regulated
- Intrinsic regulation 2. Extrinsic Regulation
Homeostasis is regulated by
feedback mechanisms
Intrinsic regulation
Cell, tissue, or organ responds to change automatically
Extrinsic regulation
nervous or endocrine system initiates change throughout the body
What are the 3 parts of a feedback mechanism
- Receptor 2. Control Center 3. Effector
Receptor
A sensor that responds to a particular stimulus/ change
