Human Anatomy & Physiology chapter 4
Questions and Answers Graded A+
Tissues - Answer groups of cells similar in structure and perform a common or related function
Histology - Answer study of tissues
Epithelial tissue - Answer sheet of cells that covers a body surface or lines a body cavity
Apical surface - Answer upper free surface exposed to the body exterior or the cavity of an internal
organ and a lower attached basal surface
Microvilli - Answer finger like extensions of the plasma membrane
Basal lamina - Answer thin supporting sheet adjacent to the basal surface
recticular lamina - Answer deep to the basal lamina; this noncellular adhesive sheet consists largely of
glycoproteins secreted by the epithelial cells plus some of the fine collagen fibers
Basement membrane - Answer reinforces the epithelial sheets, helps it resist stretching and tearing, and
defines the epithelial boundary
avascular - Answer contains no blood vessels
innervated - Answer supplied by nerve fibers
simple epithelia - Answer consists of a single cell layer; ther are typically found where
absorption ,secretion, and filtration occur and a thin epitherial barrier is desirable
, Stratified epithelia - Answer composed of two or more cell layers stacked on top of eachother, are
common in high abrasion areas where protection is important
Squamous cells - Answer flattened and scale like
Cubodial cells - Answer boxlike, approximatelyas tall as they are wide
Columnar cells - Answer tall and column shaped
Simple squamous epithelium - Answer flattened laterally, and their cytoplasm is sparse
Simple cubodial epithelium - Answer consists of a single layer of cells as tall as they are wide
Simple columnar epithelium - Answer single layer of tall, closely packed cells, aligned like soldiers in a
row
pseudoostratified columnar epithelium - Answer vary in height; all of its cells rest on the basement
membrane, but only the tallest reach the free surface of the epithelium
stratified squamous epithelium - Answer most widespread of the stratified epithelia; composedof
several layers,it is thick and well suited for its protective role in the body
stratified cuboidal epithelium - Answer quite rare in the body,mostly found in the ducts of some of the
larger glands ; typically has two layers of cubodial cells
transitional epithelium - Answer froms the lining of hollow urinary organs, which stretch as they fill with
urine
gland - Answer consists of one or more cells that make and secrete a particular product
secretion - Answer aqueous (water based) fluid that usually contains proteins, but there is a variation
Questions and Answers Graded A+
Tissues - Answer groups of cells similar in structure and perform a common or related function
Histology - Answer study of tissues
Epithelial tissue - Answer sheet of cells that covers a body surface or lines a body cavity
Apical surface - Answer upper free surface exposed to the body exterior or the cavity of an internal
organ and a lower attached basal surface
Microvilli - Answer finger like extensions of the plasma membrane
Basal lamina - Answer thin supporting sheet adjacent to the basal surface
recticular lamina - Answer deep to the basal lamina; this noncellular adhesive sheet consists largely of
glycoproteins secreted by the epithelial cells plus some of the fine collagen fibers
Basement membrane - Answer reinforces the epithelial sheets, helps it resist stretching and tearing, and
defines the epithelial boundary
avascular - Answer contains no blood vessels
innervated - Answer supplied by nerve fibers
simple epithelia - Answer consists of a single cell layer; ther are typically found where
absorption ,secretion, and filtration occur and a thin epitherial barrier is desirable
, Stratified epithelia - Answer composed of two or more cell layers stacked on top of eachother, are
common in high abrasion areas where protection is important
Squamous cells - Answer flattened and scale like
Cubodial cells - Answer boxlike, approximatelyas tall as they are wide
Columnar cells - Answer tall and column shaped
Simple squamous epithelium - Answer flattened laterally, and their cytoplasm is sparse
Simple cubodial epithelium - Answer consists of a single layer of cells as tall as they are wide
Simple columnar epithelium - Answer single layer of tall, closely packed cells, aligned like soldiers in a
row
pseudoostratified columnar epithelium - Answer vary in height; all of its cells rest on the basement
membrane, but only the tallest reach the free surface of the epithelium
stratified squamous epithelium - Answer most widespread of the stratified epithelia; composedof
several layers,it is thick and well suited for its protective role in the body
stratified cuboidal epithelium - Answer quite rare in the body,mostly found in the ducts of some of the
larger glands ; typically has two layers of cubodial cells
transitional epithelium - Answer froms the lining of hollow urinary organs, which stretch as they fill with
urine
gland - Answer consists of one or more cells that make and secrete a particular product
secretion - Answer aqueous (water based) fluid that usually contains proteins, but there is a variation
