MICRO 20 Lecture Notes - Lecture 4: Epithelium

84 views5 pages

azureworm105

27 Mar 2018

School

Department

Course

Professor

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

Day 4 lab compound light microscope and epithelia. Things to notice (4) scanning power lens; red (10) lower power lens; yellow (40) high/dry lens; blue (100) oil immersion lens; black and white. Everything is backwards when you see it in the microscope a. b. Move slide right to see it move left. Move slide up to see it move down. Working distance = distance between the slide and the lens. High-dry oil immersion will not be in focus unless they are touching the slide. Never use coarse focus knob with the high dry and oil immersion lenses b. Field of view = area on the slide you see through lenses. When you increase magnification you decrease the field of view. When our decrease magnification you increase the field of view. To find specimen start with lowest magnification objective iv. To find specimen start with lowest magnification objective c. Use only ones paper and alcohol wipes to clean lenses i.

Related Questions

1..Some ducts are formed by two layers of cells. In one duct, the apical cell (closest to the lumen, adluminal) are "taller than wide" and the basal cells (farther from lumen, abluminal) are "as tall as they are wide" Another way to describe this epithelium would be to state:

Simple columnar epithelium

Stratified squamous epithelium

Simple squamous epithelium

Simple transitional epithelium

Simple cuboidal epithelium

Stratified cuboidal epithelium

Stratified columnar epithelium

2..Acne (e.g. Acne vulgaris) accounts for approximately 10-15% of all dermatological appointments. This disease is commonly caused by bacterial overgrowth on secreted 'oil.' This disease is related to oil glands which are:(SELECT ANY STATEMENTS THAT ARE APPROPRIATE.)

exocrine glands

ceruminous glands

sebaceous glands

endocrine glands

sudoriferous glands

3. You see a patient complaining of coughing and they report a history of pneumonia. Reading the patientâs history further, you notice they have been diagnosed with cystic fibrosis. Essentially, their mucus is thick and very âstickyâ because they can not secrete adequate water with the mucus. Since many areas of the body produce sticky mucus, you expect _______ (epithelia) to be the primary tissue involved with the patientâs inability to absorb digested nutrients and secrete watery mucus.

Simple squamous

Stratified squamous

Simple columnar

Transitional

Simple cuboidal

!) 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

olivebutterfly576

1.Because it is a thin tissue made of a single layer offlattened cells, many substances diffuse easily across simplesquamous epithelium. give two structures or organs that are linedwith simple squamous epithelium.

2.simple and pseudostratified columnar epithelium may containgoblet cells. what are golblet cells and what is their function

3.columnar cdells may have ciliated apical surfaces, what arecilia and what is their function

4.what features makes stratified squamous epithelium well suitedfor lining structures that are subject to abraision or wear andtear

5.what are common characteristics of connectie tissue

6.what suffix indicates an immature cell? a mature cell?

7.is areolar connective tissue classifie as a loose or denseconnective tissue? why?

8.what protein fiber type is found in dense regular connectivetissue?

9. tendons and ligaments are structures formed of dense reuglarconnective tissue. what are the functions of tendonds andligaments.

10.how does the arrangment of protein fibers differ whencomparing dense regular and dense irregular connective tissue

magentamink596

MICRO 20 Lecture Notes - Lecture 4: Epithelium

Document Summary

Get access

Related Documents

MICRO 20 Lecture Notes - Lecture 4: Rest Area, Basal Lamina, Oil Immersion

BLG 10A/B Study Guide - Final Guide: Stratum Basale, Trachea

HHP 3105 Lecture Notes - Lecture 3: Hyaline Cartilage, Adipose Tissue, Nervous Tissue

Related Questions