Chapter 3 Flashcards
Three Major Cavities
Cranial, thoracic, abdominopelvic
Fluid-filled compartments
circulatory system, eyes, CSF
Hollow Organs
Heart, Lungs, Blood Vessels, Intestines
Lumen
interior of any hollow organ
ECF
plasma, interstitial fluid
Lipids
phospholipids, sphingolipids, cholesterol
Proteins
intergral, peripheral, transmembrane, lipid-anchored
Lipid Rafts
Made up of sphingolipids and lipid-anchored proteins
Glycocalyx
external surface of the cell, protective layer, glycolipids, glycoproteins
Differentiation
Selected genes are active to lead to specialized cells
Inclusions
lack membranes, nutrient storage, glycogen granules, lipid droplets
Microfilaments
actin fibers
Intermediate filaments
Keratin, neurofilaments
Microtubules
tubulin
Centrosome
assembles tubulin monomers into microtubules
Centrioles
direct DNA movement in cell division
Cytoskeleton
cell shape, internal organization, intracellular transport, assembly of cell into tissues, movement
Myosin
muscle contraction
Kinesins/Dyneins
movement of vesicles along microtubules
Dyneins
movement of cilia and flagella
RER
synthesis of proteins
SER
synthesis of fatty acids, steroids, lipids
Golgi
sorts, modifies, and packages proteins into vesicles
Vesicles
storage, secretory vesicles
Lysosomes
break down bacteria and old organelles
Perozisomes
break down fatty acids and toxic materials
Insoluble protein fibers
collagen, fibronectin, laminin
Cadherins
cell-cell junctions such as adherens junctions and desmosomes. Ca2+ dependent
Integrins
primarily found in cell-matrix junctions, function in cell signaling
Immunoglobulin
responsible for nerve cell growth during nervous system development
Selectins
temporary cell-cell adhesions
Epithelial
one or more layers, separated from underlying tissue by basal amine, tight, leaky, sheets of tissue cover surfaces or line, secretory
Epithelial Layers
simple, stratified
Shapes
squamous, cuboidal, columnar
Exchange Epithelium
very thin, flattened cells, allow gas exchange, line the blood vessels and lungs, simple squamous epithelium
Apical
lumen side
Basolateral
faces ECM
Exocrine glands
release products to external environments, serous, mucous
Matrix fibers
collagen, elastin, fibrillar, fibronectin
Loose Connective Tissue
elastic tissues under skin, provide support for small glands
Dense Connective Tissues
irregular, regular, provide strength or flexibility
Tendons
skeletal muscle to bone
Ligaments
bone to bone
Cartilage
nose, ears, knee, lacks blood supply
Bone
calcified
Blood
plasma, blood cells, cell fragments
Neural Tissue
neurons, glial
Necrosis
death from injury
Apoptosis
programmed cell death, cell suicide
Hemidesmosomes
tie epidermal cells to fibers of the basal lamina