A human femur (thighbone) is essentially a hollow tube filled with yellow marrow (see Figure 13). If the outer radius is r and the inner radius is rin, an important quantity characterizing such bones is r'in k = The density of bone is approximately 1.8 g/cm’ and that of marrow is about 1 g/cm'. For a femur with length L, express its mass as a function of k. nutrient canal location of yellow marrow compact bone tissue spongy bone tissue FIGURE 13 Structure of a human femur Source: From Starr. Biology, 8E © 2011 Brooks/ Cole, a part of Cengage Learning, Inc. Reproduced by permission. www.cengage.com/permissions

A human femur (thighbone) is essentially a hollow tube filled with yellow marrow (see Figure 13). If the outer radius is r and the inner radius is rin, an important quantity characterizing such bones is r'in k = The density of bone is approximately 1.8 g/cm’ and that of marrow is about 1 g/cm'. For a femur with length L, express its mass as a function of k. nutrient canal location of yellow marrow compact bone tissue spongy bone tissue FIGURE 13 Structure of a human femur Source: From Starr. Biology, 8E © 2011 Brooks/ Cole, a part of Cengage Learning, Inc. Reproduced by permission. www.cengage.com/permissions

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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You are given the following assignment. Obtain two small chicken or turkey bones. Bake one bone in the oven at a high temperature for approximately 30 minutes. Place the other in vinegar (acidic pH) for several days. Which of the following would most accurately reflect what occurred? a. Proteins in the bone matrix have denatured in the bone that is baked, and the vinegar has denatured the proteins in the soaked bone, so both bones are flexible. b. Proteins in the bone matrix are lost from the baked bone, and the bone becomes flexible. The soaked bone loses calcium and results in a brittle bone. c. Proteins in matrix have denatured from high temperature, and the bone is brittle; calcium has been removed from the bone soaked in vinegar and it has become flexible. d. Proteins are lost in the baked bone matrix, and this bone becomes flexible. Calcium loss from the bone soaked in vinegar results in a flexible bone.
Pt is a 67 y.o female as documented in addition to chronic smoking and malnutrition, she initially substained a right intertrochanteric hip fracture which was treated with intranadullary nailing last year. This unfortunately went on to a aseptic nonunion with subsequent screw cut out. Pt than underwent conversion to hemiarthroplasty complicated by distal femur fracture which was treated by ORIF of the distal femur. Pt was discharged to a rehab facility on chronic ceftriaxone with the plan for life long chronic suppression. Altered mental status and hypertension and leukocytesis. UA was suspicious to possible UTI. CT shows no obvious evidence but chronic perioslitis of her proximal femur. Risks for fall, left risk restriction, thrombocytosis, asymptomatic puria, lactic acidosis, chronic back pain, CVA with dysphasia presenting for septic shock, COPD, anxiety, depression, anemia, opioid use, smoking, Encephalopathy. Base the patient nursing report, medications, and labs please do the…
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Pt is a 67 y.o female as documented in addition to chronic smoking and malnutrition, she initially substained a right intertrochanteric hip fracture which was treated with intranadullary nailing last year. This unfortunately went on to a aseptic nonunion with subsequent screw cut out. Pt than underwent conversion to hemiarthroplasty complicated by distal femur fracture which was treated by ORIF of the distal femur. Pt was discharged to a rehab facility on chronic ceftriaxone with the plan for life long chronic suppression. Altered mental status and hypertension and leukocytesis. UA was suspicious to possible UTI. CT shows no obvious evidence but chronic perioslitis of her proximal femur. Risks for fall, left risk restriction, thrombocytosis, asymptomatic puria, lactic acidosis, chronic back pain, CVA with dysphasia presenting for septic shock, COPD, anxiety, depression, anemia, opioid use, smoking, Encephalopathy. Please do a concept map on this pt
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