Intro Flashcards
greek word “tissue”
histos
define histology
the study of the structure and function of tissues
greek word for “study of”
logos
from the french word meaning weave or texture
tissue
Different layers and textures identified by french man _____
Bichat
- all work was without microscope
- identified 21 textures in human body
from latin word meaning ‘cella’ meaning small room
cell
who first used the term ‘cell’
Robert Hooke
How did Hooke come up with the word cell
slice of cork, and what he saw reminded him of monastery cells where monks slept, empty chambers.
theory stated that all living organisms are constructed of small sub units called cells
two men
Cell Theory
- Schleiden and Schwann
4 basic types of tissue
- epithelial tissue
- connective tissue
- muscle tissue
- nervous tissue
tissue that lines something or a surface- skin, stomach lining
epithelial tissue
tissue that holds things together, extracellular matrix, cartilage
connective tissue
cardiac, skeletal smooth
muscle tissue
brain, neurons and associated glial cells.
nervous tissue
the smallest structural unit of living matter that can function independently in the proper environment
cell
‘nut’
nucleus
‘small nut’
nucleolus
a compound occurring in the liver and other tissues that inhibits blood coagulation.
heparin
a compound that is released by cells in response to injury and in allergic and inflammatory reactions, causing contraction of smooth muscle and dilation of capillaries.
histamine
glass rod in water
glass rod visible
glass rod in oil
invisible: the refractive index is about the same
interwoven masses of cells and extra-cellular material
tissues
living, more or less self-sufficient entities that form tissues surrounded by a membrane
cells
membrane bound structures within cells
ex…
organelles:
mitochondria
Golgi apparatus
various non membrane bound structures within cells
ex…
inclusions:
lipid droplets
prions
how cells combine together with extracellular material and each other to form a tissue
tissue structure
how a cell is shaped, and how the components inside cells are organized to support that cells specific function
cellular structure
detailer analysis of organelles and inclusions
sub-cellular structure
molecular analysis of cellular structure
histochemical
name some energy storage molecules
lipid, protein, carbohydrate
structural molecules
phospholipids, cholesterol, actin, myosin, membrane, microtubules, organelles
information molecules
DNA, RNA
interaction of cell molecular structure with proteins called immunoglobulins (antibodies- the immune system)
antigenicity
credited with creating the first “histology” that was based on a detailed examination of tissues with the microscope
Henle
-“loop of Henle”
