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Figures 2 and 3 on the next page provide information from different studies on the ages at which growth plates in humans close (fuse).    Using the information in these figures, what can you determine about the age of the person whose x-ray is Figure 1? Explain your answer by referencing the figures. Explain why it makes sense the distal tibial and fibular growth plates close at the same time. It might help to imagine what would happen if they didn’t.

Figures 2 and 3 on the next page provide information from different studies on the ages at which growth plates in humans close (fuse).    Using the information in these figures, what can you determine about the age of the person whose x-ray is Figure 1? Explain your answer by referencing the figures. Explain why it makes sense the distal tibial and fibular growth plates close at the same time. It might help to imagine what would happen if they didn’t.

Human Anatomy & Physiology (11th Edition)
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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Figures 2 and 3 on the next page provide information from different studies on the ages at which growth plates in humans close (fuse). 

 

Using the information in these figures, what can you determine about the age of the person whose x-ray is Figure 1? Explain your answer by referencing the figures.

Explain why it makes sense the distal tibial and fibular growth plates close at the same time. It might help to imagine what would happen if they didn’t.

4 OHT 12.6 23-28 18-21 16-23- The commencement and completion of union takes several years. The table is only a guide for male subjects (female slightly earlier) in non-tropical climates; the two dates are partial and complete union (years). 15-17 13-16 Head of femur Acromion 17-19 17-20 16-19 14-17 Distal femur Proximal tibia Proximal fibula Greater trochanter 16-19 18-22 16-19 17-19 16-21 16-19 Lesser trochanter 16-19 Head of humerus Distal humerus Medial epicondyle Proximal radius 16-23 13-16 Distal tibia 18-21 Distal fibula 16-17 14-17 14-17 18-21 16-19 14-17 Metatarsals 15-17 Proximal ulna Distal radius Iliac crest 18-22 Primary elements pelvis 14-16 Sternal clavicle 18-21 14-17 Distal ulna 23-28 17-20 Metacarpals Acromial clavicle 18-21 17-19 16-21 16-19 16-19 15-17 Approximate dates (years) of epiphyseal union Fig 2: Knight "A guide to the age of epiphyseal union in the major centers." Forensic Pathology 2nd ed 1996
Transcribed Image Text:4 OHT 12.6 23-28 18-21 16-23- The commencement and completion of union takes several years. The table is only a guide for male subjects (female slightly earlier) in non-tropical climates; the two dates are partial and complete union (years). 15-17 13-16 Head of femur Acromion 17-19 17-20 16-19 14-17 Distal femur Proximal tibia Proximal fibula Greater trochanter 16-19 18-22 16-19 17-19 16-21 16-19 Lesser trochanter 16-19 Head of humerus Distal humerus Medial epicondyle Proximal radius 16-23 13-16 Distal tibia 18-21 Distal fibula 16-17 14-17 14-17 18-21 16-19 14-17 Metatarsals 15-17 Proximal ulna Distal radius Iliac crest 18-22 Primary elements pelvis 14-16 Sternal clavicle 18-21 14-17 Distal ulna 23-28 17-20 Metacarpals Acromial clavicle 18-21 17-19 16-21 16-19 16-19 15-17 Approximate dates (years) of epiphyseal union Fig 2: Knight "A guide to the age of epiphyseal union in the major centers." Forensic Pathology 2nd ed 1996
spheno-occipital synchondrosis clavicle: medial epiph. Medial Clavicle Scapular Acromion sacrum: S1-S2 Scapular Medial Border sacrum: S2-S3 Humeral Promixal End sacrum: S3-S5 radius: distal femur: greater trochanter tibia: proximal femur: head/lesser trochanter Humeral Medial Eplcondyle Proximal Radius Proximal Ulna Distal Radius humerus: head Distal Ulna scapula: acromion/os Coxae: iliac crest femur: distal/fibula: proximal fibula: distal/tibia: distal radius: proximal Mliae Crest Ischium humerus: medial epiph. Femoral Head humerus: distal epiph. Distal Femur Proximal Tibia 0 2 4 10 12 14 16 18 20 22 24 26 28 30 32 Proximal Fibular Age Distal Tibia Distal Fibula Fig 3: Age at which epiphyseal union occurs in a population. Left end of any horizontal bar indicates earliest age of union in a population. Right end of horizontal bar indicates latest age in a population.
Transcribed Image Text:spheno-occipital synchondrosis clavicle: medial epiph. Medial Clavicle Scapular Acromion sacrum: S1-S2 Scapular Medial Border sacrum: S2-S3 Humeral Promixal End sacrum: S3-S5 radius: distal femur: greater trochanter tibia: proximal femur: head/lesser trochanter Humeral Medial Eplcondyle Proximal Radius Proximal Ulna Distal Radius humerus: head Distal Ulna scapula: acromion/os Coxae: iliac crest femur: distal/fibula: proximal fibula: distal/tibia: distal radius: proximal Mliae Crest Ischium humerus: medial epiph. Femoral Head humerus: distal epiph. Distal Femur Proximal Tibia 0 2 4 10 12 14 16 18 20 22 24 26 28 30 32 Proximal Fibular Age Distal Tibia Distal Fibula Fig 3: Age at which epiphyseal union occurs in a population. Left end of any horizontal bar indicates earliest age of union in a population. Right end of horizontal bar indicates latest age in a population.
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