Can you please help me answer ALL the questions in Part A and Part B. Thank you.

Question

Can you please help me answer ALL the questions in Part A and Part B. Thank you.

Part A Skeleta System History: Drew, an year-od feme was brought to the emergenay roombyher unde after falling framm the monkey bars at school recess. She fell on her left side, most of her weight landin on her upper body. There wts r10 tra ITEJ to her head, ror does she complain ol right or left lower limb pain. However, shereports severe pain in the left antebrachial reion. She was taken tothe radilogy department for an-ray Physical Examination. The patient w alert, uriented to time, place, arid date, arid was responding appropriatelyto questions despite being in considerable pi. There were no igns of trauma to the head, neck, torsn, lowe limhs, or right side of the body. The left arm was extremely tender and was irrmobilized by a splint Heart, lung, and abdorrinal sounds were norl. Radiology Report: The Xray of the left armrevea da fracture of the left lateral bone in the antebrachialr No other fractures werenoted in the left upper limb. The fracture cccurred in the growth plate. 1. Baced on what you have learned in lab, descnbe wherethe antelrachial region on the uppe li is 1 point) 2. What hone did Drewreak? the left lateral bone in her antebrachial region 1 pnint) 3. Thex-ray showed that Drew's fraturered in her growth plate. What is a rowh plate? point) 4. Why would doctors be ooncerned if children fractured abone in the growth plate? (2 points) . What hormone stimulates growth at the groth plate? And what/haw does that hormone cause the growth? (2 pcints Part B Muscular System You are a forensic pathologist cal ed to a crire erne i abandoned apartrment building to determine irme and caue of death. The ir thing you notice is that the bucy is in rigur mortis. The suspect in custody has a train ticket proving that she arived in town only 10 hours earlier. She claims that since the body is ul ready "stiff bourd," there is no way sheould have beer the iTurderer 1. VWhat is rigor martis? 1 pint) 2. When would ngor mrtis occur? 1 poit) 3. Should you let the suspect goor is there a chaneshe cculd be the murderer? think that? (1 point Why do you 4. ummarize for the suspect the phenomenon of how rigar mortis ours 2 points)

Explanation / Answer

1.Antebranchial region is  the area of the upper limb between elbow and hand.

2.Drew broke the left lateral bone in the antebranchial region.

3.The growth plate, also known as the epiphyseal plate or physis, is the area of growing tissue near the end of the long bones in children and adolescents. Each long bone has at least two growth plates: one at each end. The growth plate determines the future length and shape of the mature bone.

4.When a child's bones are done growing (called reaching skeletal maturity), the growth plates ossify (harden) and the epiphysis fuses with the metaphysis, forming one complete bone.Before this if a fracture occurs it is a matter of concern as there would be difficulty in hardening of this plate later.An adult whose bones have finished growing might simply pull a muscle or a tendon after a fall. But in a child, that same fall could injure the growth plate.

5.Growth hormone secreted by adenohypophysis of pituitary gland causes the growth of "growth plate".The main way that GH stimulates growth at the epiphyseal plate is indirect. GH stimulates production of insulin-like growth factor-1 (IGF-1), and it is IGF-1 that directly stimulates chondrocyte cell division and bone growth.

Part B

1.After death when oxygen is no longer present, the body may continue to produce ATP via anaerobic glycolysis. When the body's glycogen is depleted, the ATP concentration diminishes, and the body enters rigor mortis because it is unable to break actin myosin bridges which are required for the functioning of mucles.Thus all the muscle becomes stiff.

2.Rigor mortis begins within two to six hours of death.Decomposition of the myofilaments occurs 48 to 60 hours after the peak of rigor mortis, which occurs approximately 13 hours after death.

3.Yes she can be suspected because she was there for about 10 hours and rigor mortis can occur in a corpse within 2 to 6 hours after death.

4.In rigor mortis myosin heads continue binding with the active sites of actin proteins via adenosine diphosphate (ADP), and the muscle is unable to relax until further enzyme activity degrades the complex.Normal relaxation would occur by replacing ADP with ATP, which would destabilize the myosin-actin bond and break the cross-bridge.However, as ATP is absent, there must be a breakdown of muscle tissue by enzymes during decomposition. As part of the process of decomposition, the myosin heads are degraded by the enzymes, allowing the muscle contraction to release and the body to relax.

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