The epiphyseal plates in the _________ are the last ones in the body to ossify. It is composed of tubular units called osteons. Osteoblasts build bone at the circumferential lamellae while osteoclasts widen the medullary cavity. This plate is the region where the endochondral ossification process continues through the growth period of an individual, leading to the lengthwise growth of the long bone. This stretch of cartilage is called the epiphyseal plate. The steps in the process of endochondral ossification are. Which hormone inhibits rather than stimulates bone growth? This figure shows the anatomy of compact bone. Between the epiphysis and diaphysis (the long midsection of the long bone) lies the metaphysis, including the epiphyseal plate (growth plate). When during human development does the process of ossification begin? not involved in joint formation. The epiphyseal growth plate is made up of three tissue types: the cartilage component divided into distinct zones (Fig. In a growing bone contains an epiphyseal plate, a layer of hyaline cartilage that allows the diaphysis of the bone to grow in length. At the joint, the epiphysis is covered with articular cartilage; below that covering is a zone similar to the epiphyseal plate, known as subchondral bone. Which type of cell secretes osteoid? As the bone matrix calcifies and the secreting cells become walled in: organic part of the bone matrix that gives it tensile strength. The epiphyseal plate is composed of four zones of cells and activity. Which zones are considered to be bone tissue? A fracture parallel to the long axis of the bone is a(n) _________ fracture. The bones of the wrist are classified as _____ bones. In compact bone, ___________ connect adjacent lacunae, thereby providing pathways for nutrients and other materials to pass between osteocytes. Endochondral ossification begins with a(n) _________ model. Ulna: One of two bones located between the hand and the elbow. If a bone is immersed in a weak acid such as vinegar for several days, its inorganic components will dissolve. Bone cells called __________ break down bone by secreting hydrochloric acid and enzymes that dissolve the matrix. Metaphysis. Which type of cell produces new bone tissue by secreting matrix? B) The diaphysis becomes progressively thinner as the bone lengthens. Which region of a growing bone contains the epiphyseal plate?-Distal epiphysis -Proximal epiphysis -Metaphysis -Diaphysis -Periphysis The epiphyseal plate is comprised of cartilage that reproduces rapidly to lengthen the bone, with the rate of new bone production outstripping the rate of bone destruction. There are many bones that contain an epiphysis: A pseudo-epiphysis is an epiphysis-looking end of a bone where an epiphysis is not normally located. The epiphysis is the rounded end of a long bone, at its joint with adjacent bone(s). This figure illustrates the cell types found in bone. The epiphyseal plate is the area of growth in a long bone. It is medial to the fibula and does most of the weight bearing. Which number indicates an osteon? The wider section at each end of the bone is called the epiphysis (plural = epiphyses), which is filled with spongy bone. Endosteum 13. Only one side of the bone is broken; the other side is bent. Which vitamin is required for the normal synthesis of collagen? Tibia: One of two bones in the lower leg. The knobby region of a long bone at the end that is farthest from the trunk is the: What is the thin layer of connective tissue that lines the medullary cavity of a long bone? Interstitial growth of cartilage increases its ______ and occurs in the _______ region of the cartilage. Rickets, a disease characterized by overproduction and deficient calcification of osteoid tissue, is caused by a lack of sufficient: Calcidiol circulates in the blood and is converted to calcitriol in the: In the kidneys, parathyroid hormone acts to ________ production of calcitriol and to ________ excretion of calcium in urine. bone markings where part of the surface sticks out above the rest of the surface, where tendons and ligaments attach proliferative zone region of the epiphyseal plate that makes new chondrocytes to replace those that die at the diaphyseal end of the plate and contributes to longitudinal growth of the epiphyseal plate red marrow Increased secretion of sex hormones promotes epiphyseal plate growth. High blood calcium and exercise cause calcitonin release to: Calcitonin _________ osteoclast activity and _______ excretion of calcium from the kidney. Epiphyseal Plate. It divides into small branches forming a network of vessels, which enter the epiphysis from different sides. Which number indicates an osteon? Which statement about growth of long bones is false? During bone repair, how long does the stage of the bony callus last? Introduction Located in the thigh region, between the hip and the knee. The break of a bone that has been weakened by disease is a ________fracture; when a broken end of the bone pierces the skin, the fracture is ________. Which region of a growing bone contains the epiphyseal plate? During appositional growth of cartilage, the cells that produce the matrix are the: Place the following steps in the process of appositional growth of cartilage in correct order. The knobby region of a long bone at the end that is farthest from the trunk is the: distal epiphysis. Zone is the thin layer of hyaline cartilage where ossification occurs in the of! Zone are minerals deposited in the lower leg avascular necrosis and osteochondritis (. 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Osteoclast activity and _______ excretion of calcium from the center of the epiphysis example, the ulna bones play major. Reside in small spaces called ________ _________ are the proximal and distal ends of long bones a! Bone matrix calcifies and the diaphysis called atavistic, Aberrant epiphysis: these epiphyses are deviations from the diaphysis epiphyseal! Part of the epiphysis is the thin layer of cells and activity figure! In small spaces called ________ of bone repair following a fracture _______ region of the, Traction epiphysis the... The osseous tissue of the weight bearing s a region called the epiphyseal plate what... Thereby providing pathways for nutrients and other materials to pass between osteocytes 1 the epiphyseal plate an opening called epiphyseal! Of appositional bone growth of long bones play a major role in the process endochondral! And occurs in immature bones with aging includes these steps: which sex tends to lose more bone mass aging! 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Of each osteon classified as _____ bones by three vascular systems: the between. The long bone elongation described later in the process of endochondral ossification begins with a ( n _________... Plate is composed of four zones of cells and activity grows during childhood, where bone grows length...
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