Human Organism Flashcards
investigates body structure
anatomy
investigates processes and functions
physiology
studies human organism
human physiology
studies body organ-systems
systemic physiology
studies body cells
cellular physiology
studies body region
regional anatomy
studies external features
surface anatomy
using technologies (MRI, X-Rays, Ultrasound)
Anatomical Imaging
smallest level ; atoms, molecules, chemical bonds
chemical
basic units of life
cell
compartments and organelles ; mitochondria, nucleus
Cellular
group of cells with similar function and structures
tissues
two or more tissue types acting together to perform function
organs
group of organs
organ-system
all organ systems working together which includes associated microorganisms such as
intestinal bacteria
Organism
functional interrelationships between parts
organization
sum of all chemical and physical changes sustaining an organism. ability to acquire and use energy in support of these changes
Metabolism
- ability to sense and respond to environmental changes
- includes both internal and external environments
responsiveness
can increase in size * size of cells, groups of cells, extracellular materials
Growth
changes in form and size * changes in cell structure and function from
generalized to specialized—differentiation
development
- formation of new cells or new organisms
- generation of new individuals
- tissue repair
reproduction
maintenance of constant internal environment despite
fluctuations in the external or internal environment
homeostasis
measures of body properties that may change in value
variables
normal extent of increase or decrease
around a set point
normal range
normal, or average value of a variable
set point
the main mechanism used
homeostatic regulation.
negative feedback
A negative feedback involves: __________ of deviation away from set point
detection