Lecture 7 Flashcards
Four types of Tissues
1.
2.
3.
4.
Epithelial tissue
Connective tissue
Muscle tissue
Nervous tissue
Organ- structure with discrete boundaries that is composed of _____ tissue types
Histology:
two or more
-study of tissues and how they are arranged into organs
Epithelial Tissue
AVASCULAR
Basement membrane:
Basal surface:
Apical surface:
Lateral surface:
-layer between an epithelium and underlying connective tissue
-cell surface facing the basement membrane
-cell surface that faces away from the basement membrane
-cell surface between the basal and apical surface “side wall”
Epithelial Tissue can be classified into arrangements and shapes
-Arrangement types:
-Cell shapes:
-simple, stratified, pseudostratified
-squamous, cuboidal, columnar
Simple squamous:
-________ row of thin cells
-permits rapid _______ or ________ of substances
-Secretes serous fluid
-locations: _________
-single
-diffusion; transport
- alveoli (lungs), glomeruli (kidney), endothelium (inside of heart and blood vessels), serosa
Simple cuboidal:
-______ layer of square or round cells
-_________ and _______, mucus production and __________
-locations: ________
-single
-absorption; secretion; movement
-liver, thyroid, mammary & salivary gland, bronchioles, and kidney tubules
Simple columnar:
-single row of ____, _______ cells
-brush border of ______, ciliated in some organs, may posses _______ cells
-__________ and _________, secretion of mucus
-locations: ________
-tall; narrow
-microvilli; goblet
-absorption; secretion
-lining of GI tract, uterus, kidney, and uterine tubes
Pseudostratified columnar:
-looks multilayered, but all cells touch ______ ______
-has _____ and ______ cells
-secrete and ______ mucus
-locations: ______
-basement membrane
-cilia; goblet
-propel
-respiratory tract; portions of male urethra
Stratified Squamous Epithelium:
-two types:
-keratinized stratified squamous
-Nonkeratinized stratified squamous
Keratinized stratified squamous:
-multiple cell layers; cells become flat and scaly toward surface
-resists ______; retards water loss through skin; resist penetration by _________ organisms
-locations: _______
abrasion; pathogenic
-epidermis; palms and soles heavily keratinized
Non keratinized stratified squamous:
-same as keratinized epithelium without surface layer of dead cells
-resists ________ and penetration of pathogens
-locations: _________
-abrasion
-tongue; oral mucosa, esophagus, and vagina
Stratified Cuboidal:
-two or more cell layers; surface cells square or round
-secretes ______, produces sperm, produces ovarian hormones
-locations: _______
-sweat
-sweat glands ducts; ovarian follicle and seminiferous tubules
Urothelium (Transitional Epithelium)
-multilayered epithelium with surface cells that ____ from round to flat when stretched
-allows for filing of _______ tract
-location: _______
-change
-urinary
-ureter and blader
Functions of connective tissues:
-connecting organs: ________ and _______
-Support: _______ and _________
-Physical protection: ______,______,_____
-Immune protection: _______________
-Movement: _________
-Storgage: ________,_______,_______
-Heat production: ______________
-Transport: ______
-tendons and ligaments
-bones and cartilage
-cranium, ribs, sternum
-white blood cells attack foreign invaders
-bones provide lever system
-fat, calcium, phosphorus
-metabolism of brown fat
-blood
Types of Fibrous Connective Tissue
Loose connective tissue:
-much gel-like ground substance btwn cells
-types–> areolar & reticular
Dense connective tissue:
-fibers fill spaces between cells
-types–> dense regular connective tissue & dense irregular connective tissue