Chpt 1 Flashcards
Anatomy
Study of the structures of the body
Homeostasis
Relatively constant internal environment
Positive feedback loops
An initial stimulus produces a response that enhances the change in original condition to make it ends faster
Negative feedback loops
A variation outside the desired range causes the body to respond to end the variation
Physiology
The study of how organs perform their functions
Root language for medical terminology
Latin
Eponyms
Things named after discoverers or victims
Parkinson’s
Macroscopic anatomy
Examines large structures of the body
Microscopic anatomy
Deals with structures that cannot be seen without magnification
Cytology
Study of cells
Histology
Study of tissues
Levels of organization
- atoms
- molecule
- macromolecule
- organelle
- cell
- tissue
- organ
- organ system
- organism
Intrinsic regulation
Self regulation by a cell or organ automatically
Extrinsic regulation
Regulation by the endocrine or nervous system
Homeostatic regulation mechanism parts
- receptor
- control/integration center
- effector
Receptor
Receives info that something is off
Control/integration center
Receives and processes info
Effector
Cell or organ hat responds to commands or control center
Equilibrium
When opposing forces are in balance
Dynamic equilibrium
Systems are constantly adjusting and adapting to changing conditions
Anterior
Viewed from the front
Posterior
Viewed from the back
Superior
Above
Inferior
Below
Medial
Towards the middle
Lateral
Towards the edge
Dorsal
Towards the back
Ventral
Towards the front
Abdominopelvic quadrants and organ in each
Check physical card
Abdominopelvic regions and organ in each
Check physical card
Transverse plane
Parallel to the floor
Frontal/coronal plane
Perpendicular to the floor
Sagittal plane
Perpendicular to floor, splits into left and right
Dorsal body cavity divided into
Cranial and vertebral
Ventral body cavity divided into
Thoracic and abdominopelvic
Thoracic cavity contains
Heart and lungs
Pleura
Membrane that surrounds all of the thoracic cavities to reduce friction
Pleural cavities
Contain lungs
Mediastinum
Membrane that separates the left and right pleural cavities and surrounds esophagus
Pericardial cavity
Contains the heart