Introduction Flashcards
Large structures
Easily observable
Can see with naked eye
Gross Anatomy
Structures cannot be seen with the naked eye
Structures can be viewed only wth a microscope
Microscopic Anatomy
Study of how the body and its parts work or function
Physiology
Structure determines what functions can occur
If structure changes, the function must also change
Relationship between anatomy and physiology
Levels of structural organization
- Atoms
- Cells
- Tissues
- Organs
- Organ systems
- Organisms
Forms the external body covering (skin)
Protects deeper tissue from injury
Helps regulate body temperature
Location of cutaneous nerve receptors
Integumentary system
Consists of bones, cartilage, ligaments, and joints
Supports the body
Provides muscle attachment for movement
Site of blood cell formation (hematopoiesis)
Stores minerals
Skeletal system
Site of blood cell formation
Hematopoiesis
Skeletal muscles contract or shorten
Produces movement of bones
Muscular system
Fast acting control system
Consists of brain, spinal cord, nerves, and sensory receptors
Responds to internal and external changes
Sends messages via nerve impulses to central nervous systems
Central nervous system activates effectors (muscles and glands)
Nervous system
Endocrine glands include: pituitary gland, thyroid and parathyroids, adrenal glands, thymus, pancreas, pineal gland, ovaries (females) and tested (males)
Endocrine system
Secretes regulatory hormones
•growth
•reproduction
•metabolism
Endocrine system
Includes heart and blood vessels
Heart pumps blood
Vessels transport blood to tissues
Transports materials via blood pumped by heart
Oxygen and carbon dioxide
Nutrients
Wastes
Cardiovascular system
Includes the nasal passages, pharynx, larynx, trachea, bronchi, and lungs
Supplies blood with oxygen
Removes carbon dioxide
Respiratory system
Includes the oral cavity, esophagus, stomach, small and large intestines, and accessory organs
Breaks down food
Allows for nutrient absorption into blood
Eliminates indigestible material as feces
Digestive system
Includes the kidneys, ureters, urinary bladder, and urethra
Eliminates nitrogenous wastes
Maintains acid base balance
Regulates water and electrolytes
Urinary systems
For males, include the testes, scrotum, penis, accessory glands, and duct system
Testes produce sperm
For females, include ovaries, uterine tubes, uterus, and vagina
Ovaries produce eggs
Uterus provides site of development for fetus
Reproductive system
Study of the shape and structure of the body
Anatomy
Building blocks of matter, combine to form molecules
Atoms
Smallest units of all living things
Cells
Groups of similar cells that have a common function
Tissues
Two or more tissue types that perform a specific function for the body
Organ
Group of organs the work together to accomplish a common purpose
Organ system
Sum total of all structural levels working together
Organsim