(Magnified about 125 ×.) 0. B, Fluorescent light photomicrograph of the corresponding section shows that the superior cortical plate is composed primarily of woven bone (indistinct labels). Procedure 1. Osteocytes, unlike chondrocytes, have numerous cytoplasmic extensions that project off of the main cell body. In long bones, spongy bone forms the interior of the epiphyses; the diaphysis (shaft) consists of compact bone surrounding the central marrow cavity. The supporting trabeculae are composed of remodeling trabecular bone (sharp labels). Compact? osteons. _____ Which is longest? Haversian Canal. You need to get 100% to score the 10 points available. Get started! Note the densely-packed, round structures of varying size. The epiphyseal line is a remnant of an area that contained hyaline cartilage that grew during childhood to lengthen the bone. This is why chondrocytes always leave a region around themselves free of the cartilaginous extracellular matrix that makes up the rest of the tissue. Several descriptions of bone structure are given below. In the photomicrograph below of compact bone tissue, find and label the indicated structures. View the slide on an appropriate objective. The cells of compact bone, which is also called cortical bone, appear to be tightly packed into a solid mass. In the photomicrograph below of compact bone tissue, find and label … Scan. Compact bone appears solid and spongy bone consists of a web- or sponge-like arrangement of solidified extracelluar matrix. Due to the strong nature of compact bone, compared to spongy bone, it is the preferred tissue for strength. In both bone and cartilage, as in the different types of connective tissue proper, there are extracellular protein fibers embedded in a viscous ground substance. They may have prominent mitotic activity, but cellular atypia is rare (see the images below). Label the following: Click on the right square: what is a? What is the function of the periosteum? Today's Rank--0. What tissue type is this? Lacuna. Exercise 5.5. When they are formed in the bone-marrow, they contain a nucleus, but when the become mature it is replaced by haemoglobin in order to carry more oxygen. Slender canaliculi connect neighbouring canaliculi. Privacy Fill out the blanks next to your drawing. interstitial lamellae. 3). outermost layer. Scan. Macroscopic photo of a thick section of bone showing the cortical compact bone and the lattice of trabeculae in cancellous bone at the bone's interior. One of us! Then, on the photomicrograph of bone on the right (208 ), identify all structures named in the key and bracket an osteon. Now look at the outside of the epiphysis, this part of the bone is not surrounded by the periosteum. Most bones are formed by the transformation of cartilage "bone models", a process called endochondral ossification. In the photomicrograph below of cartilage tissue, find and label the indicated structures. Today 's Points. 38. _____ smallest: RBC Longest: smooth muscle cell. Compact Bone. Bone label uptake documents a high rate of remodeling of lamellar bone. The osteocytes occupy flat lacunae, which appear black in this preparation. However, in bone and cartilage, the ground substance is so viscous as to be very hard and tough solids. | The osteocytes sit in their lacunae in concentric rings around a central Haversian canal (which runs longitudinally). One of us! Obtain a microscope and a prepared bone slide tissue to continue with the microscope study of the bone. Supporting connective tissue comprises bone and cartilage. This problem has been solved! Fill out the blanks next to your drawing. The data that is entered into a computer. 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