Can you please help me answer ALL of this questions. Thank you. Part A Skeletal

Question

Can you please help me answer ALL of this questions. Thank you.

Part A Skeletal System History: Drew, an 8 year-old female, was brought to the emergency room by her uncle after falling from the monkey bars at school recess She fell on her left side, most of her weight landing on her upper body. There was no trauma to her head, nor does she complain of right or left lower limb pain. However, she reports severe pain in the left antebrachial region. She was taken to the radiology department for an X-ray Physical Examination: The patient was alert, oriented to time, place, and date, and was responding appropriately to questions despite being in considerable pain. There were no signs of trauma to the head, neck, torso, lower limbs, or right side of the body. The left arm was extremely tender and was immobilized by a splint. Heart, lung, and abdominal sounds were normal. Radiology Report The X-ray of the left arm revealed a fracture of the left lateral bone in the antebrachial region, No other fractures were noted in the left upper limb. The fracture occurred in the growth plate 1. Based on what you have leaned in lab, describe where the antebrachial region on the upper limb is. (1 point) 2. What bone did Drew break? (the left lateral bone in her antebrachial region). (1 point) 3. Thex-ray showed that Drews fracture occurred in her growth plate. What is a growth plate? (1 point) 4. Why would doctors be concerned if children fractured a bone in the growth plate? (2 points) 5 What hormone stimulates growth at the growth plate? And what/how does that hormone cause the growth? (2 points) Part B Muscular System You are a forensic pathologist called to a crime soene in an abandoned apartment building to determine time and cause of death. The first thing you notice is that the body is in rigor mortis. The suspect in custody has a train ticket proving that she arrived in town only 10 hours earlier. She claims that since the body is already "stiff as a board, there is no way she could have been the murderer 1. What is rigor mortis? (1 point) When would rigor mortis occur? (1 point) Should you let the suspect go or is there a chance she could be the murderer? 2. 3. Why do you think that? (1 point) 4. Summarize for the suspect the phenomenon of how rigor mortis occurs (2 points)

Explanation / Answer

Answer:-

Part-A

1.Antebrachial region:-

the area of the upper limb between elbow and hand.

2.Radius bone.

3.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.

4.Injuries to the growth plate happen when a break or fracture develops near or at the end of a long bone. The growth plate is the weakest part of the growing skeleton.

*An injured growth plate might not do its job properly, which can lead to crooked or misshapen bones, limbs that are too short, or even arthritis.

5.GH-growth hormone.(somatotropin).

growth hormone (GH), which is secreted by cells in the adenohypophysis.

*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.

*IGF-1 can be considered to act as both a hormone and a paracrine.

*Some of the IGF-1 is produced by the liver, and travels to the growth plate via the circulation.

*some of the IGF-1 is produced locally by chondrocytes in the growth plate..

Part-b:-

1.reform mortis:-

stiffening of the joints and muscles of a body a few hours after death, usually lasting from one to four days.

2.A few hours after a person or animal dies, the joints of the body stiffen and become locked in place.

*This stiffening is called rigor mortis.

*Depending on temperature and other conditions, rigor mortis lasts approximately 72 hours. The phenomenon is caused by the skeletal muscles partially contracting.

*The muscle contracts when the myosin shifts, but the lack of ATP prevents it from detaching, and the muscle remains contracted.

Such a process occurs in all muscles as the body becomes rigid. Rigor mortisusually sets in within four hours, first in the face.

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