KINESIOL 1A03 Lecture Notes - Transitional Epithelium, Histology, Microvillus

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21 Nov 2012

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Chapter 4 - histology: the study of tissues lecture. Histology: tissue fixed to slide can be examined. Tissue classification based on structure of cells, composition of noncellular (extracellular matrix), and cell function. Ectoderm: inner layer forms lining of digestive tract and derivitives (evaginations of digestive tract) middle layer forms tissue as such muscle, bone, blood vessels urinary system outer layer forms skin and neuroectoderm. Extracellular: formed by secretions of both epithelium + connective tissue. Simple: one layer of cells the tissue - shape of cells may be diff close to basement membrane as opposed to free/apical layer. Stratified: more than one layer. shape of cells of apical layer (free layer) used to name membrane so it is in fact simple. Psuedostratified: tissue appears to be stratified, but all cells contact basement. Simple: allows diffusion of gases, filtration of blood, secretion, absorption. Cubodial and columnar: secretion or absorption, may include goblet cells that produce and secrete mucus.

Related Questions

!) Connective tissues:
A) are made primarily of extracellular matrix.
B) arise from different types embryonic tissue; connective tissuestherefore have little
relationship or kinship to one another.
C) are delicate tissues, not designed to bear weight or withstandabrasion or tension.
D) are never vascularized.

2) Which of the following is incorrectly matched?
A) Stratified squamous epithelia: found in areas subjected to wearand tear
B) Simple cuboidal epithelia: found in areas that stretch
C) Simple columnar epithelia: associated with absorption andsecretion
D) Simple squamous epithelia: associated with filtration andexchange

3) Select the true statement.
A) Loose connective tissue includes cartilage.
B) Dense connective tissue is often called fibrous connectivetissue
C) Bundles of collagen are often found in loose connectivetissue.
D) Dense connective tissue includes adipose tissue.

4) Which of the following is not correctly matched?
E) Kidney: absorption
A) Skin: protection
B) Skin: absorption
C) Kidney: filtration
D) Digestive tract: absorption

5) Smooth muscle:
A) has long, cylindrical cells.
B) is under involuntary control.
C) contains intercalated discs.
D) has striations.

6) Which of the following increases the surface area of certainepithelial tissues?
A) Cilia
B) Basal lamina
C) Microvilli
D) Basement membrane
E) Desmosomes

7) Choose the correct answer.
A) Muscle is derived from the primary germ layer, called theectoderm.
B) Epithelium is derived from all three primary germ layers:ectoderm, mesoderm, and endoderm.
C) Nervous tissue is derived from the primary germ layer, calledthe mesoderm.
D) Connective tissue is derived from the primary germ layer, calledthe endoderm

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KINESIOL 1A03 Lecture Notes - Transitional Epithelium, Histology, Microvillus

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