A & P Intro Overview Flashcards
Lecture 1 (23 cards)
Define Anatomy
Science of body structures & their relationships [the what]
Define Physiology
Science of body functions & how different parts work [the how]
What are the 6 levels of structural organization [smallest to largest]
Chemical Cellular Tissue Organ System Organismal
What are the 4 main cell & tissue types
Epithelial
Nervous
Muscular
Connective
Metabolism
All chemical process that occur in the body
Catabolism
Breakdown of complex chemicals to simpler components
Anabolism
Creation of complex chemicals from simpler components
Homeostasis
Dynamic response to maintain relatively stable condition
Intracellular fluid
Fluid within cells
Extracellular fluid
Fluid outside body cells (can draw with needle) [i.e. blood plasma, lymph, cerebrospinal]
Interstitial fluid
extracellular fluid that fills between spaces [swelling]
What are the three basic components of a feedback system?
Receptor
Control Center
Effector
Negative Feedback system
Define & give example
Reverse a change in a controlled condition (i.e. blood pressure)
Positive Feedback sysytem
Define & give example
Reinforces a change in a controlled condition (i.e. childbirth)
What are the 4 anatomical planes
Median
Sagittal
Frontal
Transverse
Medial Plane
Vertical anteroposterior plane passing through midlines of head, neck, and trunk.
Divides the body into left & right halves.
Sagittal
Vertical plane passing parallel to median plane.
left VERSUS right
Frontal (Coronal)
Vertical plane passing though the body at a right angle .
Divides body into front and back (anterior/posterior)
Transverse
Horizontal plane passing through the body at right angles to median and frontal planes.
Divides body into upper & lower (superior/inferior)
Identify the three types of lever systems
First-class “see-saw”
Second-class “wheelbarrows”
Third-class “forceps”
Agonist
the principal muscle that is involved in movement
Antagonist
muscle whose action is opposite of prime mover
Synergist
a muscle that assists the agonist & performs a similar movement