Chapter 1 - Intro Flashcards
Anatomy
“Cutting open”, the study of internal and external structures
Gross Anatomy
“Macroscopic” large structures visible with the unaided eye
Microscopic Anatomy
Structures that can’t be seen without magnification
Physiology
The study of function
Organism
Highest level of organization. The human.
Organ system
The interrelation between organs
Organ
Group of two or more tissues working to perform a function.
Tissue
Similar cells and products working to perform a specific function.
Cells
Smallest living unit in the body
Atoms
Smallest stable units of matter
Molecules
Groups of atoms with complex shapes
Chemical level
Consists of atoms and molecules
Cellular level
Consists of cells
Types of cells
Smooth muscle Blood Bone Fat Nerve Reproductive Digestive
Smooth muscle cells
Long and slender
Can contract
Blood cells
Red: flattened discs, transports O2 and CO2
White: spherical, fight disease
Bone cells
Found in bone recycle calcium and phosphate stored in bone
Fat cells
Round, stores energy
Cell theory
Cells are structural building blocks of all plants and animals
Cells come from reproduction of pre-existing cells
Smallest structural unit that can perform all vital functions
Digestive tract cells
Absorb nutrients
Reproductive cells
Oocyte
Sperm
Nerve cells
Neurons
Process information
Histology
Study of tissue
Primary Tissue types
Epithelial
Connective
Muscle
Nervous