Module 1 Exam Flashcards
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
Structures found in mediastinum (5)
- Heart
- Thymus
- Esophagus
- Trachea
- Major blood vessels connecting to heart
Serous membrane
*Layer of cells that lines subdivisions of ventral cavity
Parietal layer of serous membrane
Lines internal surface of body wall
Visceral layer of serous membrane
Lines external surface of organs
Superior
closer to head
Inferior
Closer to feet
Anterior
In front of
Posterior
In back of
Medial
Toward midline
Lateral
Away from midline
Proximal
Closer to point of attachment
Distal
Farther away from point of attachment
Deep
On inside
Superficial
On outside
Cranial
Surrounding the brain
Frontal
Forehead
Occipital
Back of head
Orbital
Eye