8_- GRQ- Histology

.docx

School

University of North Carolina, Chapel Hill *

*We aren’t endorsed by this school

Course

921

Subject

Anatomy

Date

Dec 6, 2023

Type

docx

Pages

Uploaded by awhstinharllee

Guided reading questions Histology Please note, the page numbers might be slightly different between the eText and the printed version. Use the titles/subtitles mentioned below to locate the specific text. Read pages: 137- 138 (Connective tissue proper) 142-145 (Cartilage and bone) Watch the online Voicethread mini lecture on Histology 184-187 (Introduction to bones up to, and not including, “Structure of Short, flat..”) 192-194 (Section 6.2, only “Histology of bone tissue”) Do not hesitate to use the web when a question is not specifically addressed in the textbook. The questions below address the readings and not the video. Pages 137-138 1. What are the main functions of connective tissue? 1) binding and supporting, 2) protecting, 3) insulating, 4) storing reserve fuel, and 5) transporting substances within the body. Connective tissues can have various levels of vascularity. Cartilage is avascular, while dense connective tissue is poorly vascularized. 2. What are the three major components of all connective tissues? fibers (elastic and collagenous fibers), ground substance and cells . 3. Different connective tissues contain different types of cells. The major cells of the connective tissue proper (also known as fibrous connective tissue) are called ___________ fibroblasts, mast cells , plasma cells , macrophages, adipocytes, and leukocytes 4. What are the three types of fiber proteins we find in the connective tissue proper (you probably want to use the web for this specific question)? (1) collagen fibers, (2) reticular fibers , and (3) elastic fibers 5. What are the types of connective tissue proper? Connective tissue proper includes: loose connective tissue (also called areolar ) and dense (irregular) connective tissue. Specialized connective tissue types include: dense regular connective tissue , cartilage , bone, adipose tissue , blood, and hematopoietic tissue.

No need to learn in detail the properties of each type of connective tissue proper 6. The space between the fibers and the cells is empty a. True b. False 7. What does ground substance typically include? Ground substance is primarily composed of water and large organic molecules, such as glycosaminoglycans (GAGs), proteoglycans, and glycoproteins. ... Important GAGs found in ground substance include hyaluronic acid, heparan sulfate, dermatan sulfate, and chondroitin sulfate. Pages 142-145 8. The major cells of the cartilage are called ______________. They are responsible for secreting the cartilage matrix. Once these cells are engulfed in lacunae (small “lake” like cavities), they differentiate and become ______________ 9. Why does cartilage recover so slow from injury? Cartilage has limited repair capabilities: Because chondrocytes are bound in lacunae, they cannot migrate to damaged areas. Therefore, cartilage damage is difficult to heal . Also, because hyaline cartilage does not have a blood supply, the deposition of new matrix is slow . There are three types of cartilage tissue, exhibited on p. 143 (Figure 4.17). You do not need to memorize all the details depicted in this table. What you do need to know are the answers to question 10. 10. For each of the cartilage types, write down the name, what their major functions are, and what part of their microscopic anatomy allows them to provide those functions. Name Functions Unique anatomical properties Hy______ ______________ Abundance of collagen fibers Ela______ ______________ ___________________________ Fibr______ Resist compression ___________________________

Your preview ends here

Eager to read complete document? Join bartleby learn and gain access to the full version

Access to all documents
Unlimited textbook solutions
24/7 expert homework help