30 Jun Introduction to Histology – Cartilage and Bones / Skin Lab Questions
Cartilage and Bones lab Observations Take a picture and insert it in the appropriate section below. Hyaline cartilage Magnification used: Fibrocartilage Magnification used Compact bone 2 Magnification used Spongy bone Magnification used ©2015 Carolina Biological Supply Company 3 Data table Tissue type Best magnification Tissue comparison What is specific about this tissue compared to the other cartilage Best magnification Tissue comparison What is specific about this tissue compared to the other bone Hyaline cartilage Fibrocartilage Tissue type Compact bone Spongy bone Post-laboratory Questions 1. Describe the difference observed between hyaline cartilage and fibrocartilage? What is the effect of that difference in the way the tissue functions? 2. In an osteon where can you find the lacuna? ©2015 Carolina Biological Supply Company 4 3. Which of the tissues you have observed has long narrow lacuna surrounded by long narrow fibers going all in the same direction? 4. Which tissue type has lacuna which radiate out giving it a star like appearance and why would this be? 5. When looking at a slide you see what appears to be open spaces with small cells in it, this all is surrounded by layers of connective tissue. What type of tissue is being observed? ©2015 Carolina Biological Supply Company Introduction to Histology: Cartilage and bones Pre-laboratory Questions 1. What distinguishes connective tissues from other tissues? 2. What term is used to describe the network of fibers in spongy bones? 3. Name the three groups of connective tissue as it relates to their function? 4. When an osteoblast is surrounded by a matrix, what is it called? 5. Name the three types of cartilage and explain the differences? 6. Bone and cartilage represent which type of connective tissue? 7. In which bone type are osteons found and what do they look like? ©2015, Carolina Biological Supply Company 1 Introduction to histology: the Skin Observations Take a picture and insert it in the appropriate section below also record the total magnification needed to best view the object. Epidermis, dermis and hypodermis Magnification used: Different layers of the epidermis Magnification used: 2 Papillary dermis Magnification used: Reticular dermis Magnification used: ©2016 Carolina Biological Supply Company 3 Apocrine sweat gland Magnification used: Merocrine sweat gland Magnification used: ©2016 Carolina Biological Supply Company 4 Data table Fill out the table according to the instruction listed in the lab manual. Tissue type Best magnification Stratified Squanomous Epithelium Basement membrane Stratum corneum Stratum lucidum Stratum granulosum Stratum spinosum Stratum basale ©2016 Carolina Biological Supply Company Tissue comparison What is specific about this tissue 5 Papillary dermis Reticular dermis Apocrine sweat gland Merocrine sweat gland Questions 1. Someone doing manual labor what would you see when looking at a section of the dermis of their hands? 2. A callus is a hardening of skin, which protein is very abundant here? 3. What will happen if the sebaceous gland slows their function? 4. Why does hair look shinier when we are sweating a lot? 5. Skin grows from a particular layer, what is the name of this layer and what might happen if this layer gets damaged? ©2016 Carolina Biological Supply Company Introduction to Histology: The Skin Pre-laboratory Questions 1. What are the three main layers of the skin and what are they composed of? . 2. What is the role of sebaceous glands? 3. Which layer of the skin contains adipose tissue and what are the main functions of this tissue? 4. What are the names of the two types of sweat glands and what is the main difference between the two? 5. What is the most abundant cell type in the epidermis? What substance do they produce and why? 6. What is the difference between thin and thick skin and where can this thick layer be found? 7. Name the five layers of the epidermis? 8. What are the two layers of the dermis and what is their function? ©2015, Carolina Biological Supply Company 1 …
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