Histology Word Scramble
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Question | Answer |
tissue | a collection of similar cells and noncellular substances (extracellular matrix) secreted by the cells |
four types of tissue | epithelial, connective, muscle nervous |
histology | microscopic study of tissues |
apical surface | free or top surface, surface which is exposed to either the external environment or to some internal body space |
lateral surface | side-by-side with other cells, having intercellular junctions |
basal surface | in contact with other cells (often other tissue types), fixed or bottom surface |
avascular | lacking blood vessels |
Distinctive feature of epithelial tissue #1 | consists almost entirely of epithelial cells |
Distinctive feature of epithelial tissue #2 | covers body surfaces and forms glands |
Distinctive feature of epithelial tissue #3 | has free and basal surface |
Distinctive feature of epithelial tissue #4 | avascular |
Distinctive feature of epithelial tissue #5 | undergoes mitosis |
Single cell layer | simple |
More than one cell layer | stratified |
pseudostratified (columnar) | single layer, only some cells reach the apical surface |
transitional | number of cell layers decreases when stretched |
squamous | scaly, cells flattened |
cuboidal | cells cube-shaped |
columnar | cells are taller than wide, shaped like a column |
simple squamous function/location | diffusion, lungs (alveoli) |
simple cuboidal/columnar function/location | absorption/filtration/secretion, small intestine, kidneys |
all types of stratified function/location | protection against abrasion, invasion, etc., outside of your skin |
glands | secretory organs made mostly of epithelium (form as invaginations) |
exocrine gland | have ducts opening to the outer surface lined with epithelium |
types of exocrine glands | sweat glands, mucus glands |
endocrine glands | duct-less, secretions (hormones) transported into the blood system |
types of endocrine glands | pituitary gland, pancreas, thyroid gland |
Distinctive feature of connective tissue #1 | abundant and diverse |
Distinctive feature of connective tissue #2 | consists of cells separated by extracellular matrix |
Distinctive feature of connective tissue #3 | specialized cells produce the extracellular matrix |
Distinctive feature of connective tissue #4 | performs a variety of important functions |
-blast | creates the matrix |
-cyte | fully developed an mature cell |
-clast | breaks down the matrix for remodeling |
mesenchyme | basic, fundamental connective tissue from which adult tissue is derived |
collagen fiber | thickest type of fiber, like a steel cable (strong but resists pull/tension) |
reticular fiber | thinner fiber, like a steel wire (not as strong as collagen) |
elastic fiber | thinner, made of elastin, properties allow it to stretch and return to normal |
Yellow fat | most abundant, storage for lipids, cushions and insulates |
Brown fat | found only in specific areas of the body, contains lots of mitochondria for metabolism |
tendons | connect muscles to bones |
ligaments | connect bones to bones |
Characteristics of loose connective tissue | cells and fibers widely dispersed, lots of extracellular matrix |
Characteristics of dense connective tissue | cells and fibers are densely packed |
Characteristics of blood connective tissue | liquid, extracellular matrix made mostly of water, transport medium |
Functions of loose connective tissue | loose packing material of most organs and tissues, attaches skin to underlying tissues |
Origin of yellow fat | derived from mesenchymal cells |
origin of brown fat | derived from muscle tissue |
Functions of dense regular connective tissue | resists pulling along its length |
Functions of dense irregular connective tissue | forms the dermis of the skin, strong in all directions |
Location of elastic connective tissue | ligaments in vocal cords, in walls of elastic arteries |
chondrocyte | mature, nondividing cartilage cell |
hyaline cartilage structure | glassy appearing matrix |
hyaline cartilage function/location | smooth surfaces for movement of joints, model for bone growth; fetal skeleton, covers end of long bones, larynx, trachea, nose |
fibrocartilage structure | parallel collagen fibers in matrix |
fibrocartilage function/location | resists compression, absorbs shock; intervertebral discs |
elastic cartilage structure | contains abundant elastic fibers that form a weblike mesh around lacunae |
elastic cartilage function/location | maintains structure and shape while permitting flexibility; external ear |
Created by:
Jean-O
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