Module 1 Exam Flashcards
(106 cards)
Define Anatomy
Form and structure of organs/systems
Define Physiology
Function of organs/systems
Levels of Organization (6)
- Chemical
- Cellular
- Tissue
- Organ
- Organ system
- Organismal
Chemical level
- simplest level
- involves atoms and moleculeus
- atoms–molecules–macromolecules–organelles
Cellular level
- consists of cells
* smalles living structures
Tissue level
*groups of similar cells that perform common functions
Organ level
*contain 2 or more tissue types that work together to perform specific, complex functions
Organ system level
*related organs that work together to coordinate activities and achieve common function
Organismal level
- highest level
* all body systems function interdependently
6 Characteristics of life
- Organization
- Metabolism
- Growth and development
- Responsiveness
- Regulation
- Reproduction
Organ systems (11)
- Integumentary system
- Muscular system
- Skeletal system
- Nervous system
- Endocrine system
- Lymphatic system
- Cardiovascular system
- Respiratory system
- Urinary system
- Digestive system
- Reproductive system
Function of integumentary system
- protection
- regulate body temp
- site of cutaneous receptors and glands
- synthesizes vit D
- prevents water loss
Function of muscular system
- produces body movement
* generates heat w/ muscle contractions
Function of nervous system
- regulatory
- controls muscles and some glands
- responds to sensory stimuli
- responsible for consciousness, intelligence, and memory
Function of endocrine system
- glands and cell clusters that secrete hormones—-regulate development, growth, and metabolism
- maintain homeostasis of blood composition and volume
- control digestive processes, and control reproduction
Function of lymphatic system
- transports and filters lymph
* participates in an immune response when necessary
Function of cardiovascular system
- consists of heart and blood vessels
* heart moves blood in order to distribute hormones, nutrients, gases, and pick up waste products
Function of respiratory system
*responsible for exchange of gases between blood and the air in the lungs
Function of the urinary system
- filters the blood to remove waste products and biologically active molecules
- concentrates waste products in the form of urine
- expels urine from the body
Function of the digestive system
- mechanically and chemically digests food materials
- absorbs nutrients
- expels waste products
Function of the reproductive system
Male *Produces male sex cells *produces male hormones *transfers sperm to female Female *Produces female sex cells *produces female hormones *receives sperm from male *site of fertilization *site of growth and development of embryo and fetus *produces and secretes breast milk for nourishment of newborn
Define homeostasis
Ability of an organism to maintain consistent internal environment in response to internal or external conditions
Negative feedback
- resulting action always in opposite direction of the stimulus
- most processes use this
Positive feedback
*stimulus is reinforced to continue in the same direction until a climactic event occurs