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PLTW Biomedical Science Exam With 100% Correct Answers
What are the major elements involved in carrying out an autopsy. - Answer 1. Measurements
- Person identification
- Documentation of various aspects
- Preparation of tools
- Internal examination
- Digestive Exam
- Sample Gathering
- Brain Examination
What is cause of death - Answer Death directly related to injury or trauma or disease
What is manner of death - Answer Cause of death due to accident
What is mechanism of death - Answer What happens inside the body to cause death
What aspect most often requires data and information collected outside of the autopsy - Answer Mechanism of death
What is the integumentary system - Answer Hair, skin, nails
Forms the bodies external coverings, protects deeper tissue from injury, helps regulate body temperature
What is the skeletal system - Answer Bones, joints
protects and supports body organs, provides framework for muscles can years to move,
stores minerals
What is muscular system - Ans Skeletal muscle, cardiac muscle, smooth muscle
Moves the body and moves substances around the body, maintain posture, produce heat
What is nervous system - Ans Brain, spinal cord, nerves, sensory receptors
Response to internal and external changes by acting an appropriate response, processes info
Cardiovascular System - What is it? Heart, Blood vessels (veins, arteries, capillaries)
Pump blood through the body, transport blood oxygen, carbon dioxide, nutrients, waste
Respiratory System-What is it? Nasal cavity, trachea, lungs, bronchus
Aid with gas exchange with the X ternal environment, keep blood supplied with O2, remove CO
Lymphatic and Immune System-What is it? Lymph nodes, spleen, thymus, bone marrow
Filter fluid in the body, Mounts the attack against foreign substances in the body
What is the digestive system - Answer Oral cavity, esophagus, small/large intestines, stomach
Breaks down food into nutrients molecules, absorbs nutrients, rids body of waste
What is the urinary system - Answer Kidney, bladder, ureter, uretha
Eliminate waste from the body, regulate water balance of the blood
What is the Endocrine system - Answer Testis, adrenal gland, pituitary gland, ovary
Produce hormones that control functions including growth, reproduction, and
What is rigor mortis? - Answer Muscles contract and stiffen after death
What is 0°C in Fahrenheit - Answer 0°F
What is 20°C in Fahrenheit - Answer 68°F
What is 50°C in Fahrenheit - Answer 122°F
Lifecycle stage fly eggs - Answer Flags take 24 hours before they come laval
Lifecycle states larva stage - Answer The fly larva form after the first day and last up to two days for becoming pupa
In what way does the ambient temperature influence the rate of cooling of the body following death? -Answer The rate of the temperature change depends upon the ambient temperature. Such that the cooler it is outside, the faster the particles. The hotter it is, sewer it caused an even a chance of an increase.
How does ambient temperature affect the Glaister equation and thus determination of time of death? Answer Ambient temperature could increase and decrease, and if it is not a constant temperature, then rate of cooling in the body pump will be constant.
Why is determining time of death such a complicated process - Answer There are so many factors going into it, so it is hard to be exact. The factors include but are not limited to environment, clothing, health, original temperature, and much more
What are two reasons for completing toxicology test on samples from living people - Answer 1. A person may have damage/health issues to some part of them and they don't know the cause
- To determine if a person is under the influence of drugs
Where does digestion begin - Answer The mouth
Describe the path of food did the digestion system - Answer The food enters the mouth (oral cavity) and teeth, tongue, and salivary glands help break down the food into smaller pieces. The food then travels to the esophagus. Esophagus transport the food to the stomach. Here, there is an acid and enzyme-filled muscular sac. Stomach contracts to break down feet. Once the feet leave the stomach, it goes to the small intestines. The small intestines continue to break dancing in, absorbing the nutrients. The 15 goes to the large intestines, which absorb the water from it and out of the rectum.
What is a presumptive test - Answer It's a test that can't confirm if it is something but if it's likely something.
What are limitations of presumptive test - Answer It can only tell if something is likely to be something. They can also be a false positive.
How much toxicology be important to other bio medical professionals outside of forensics - An toxin can be important to diagnose a health issue from drugs or if they had taken some before an operation that you can't have drugs before.
How is it forensic chemist so much for forensic toxicologist - Answer They both study in normality of certain things to figure out a problem
How does a forensic chemist differ from a forensic toxicologist - Answer Forensic toxicology studies the body/substances in the body and forensic chemist study objects in materials
What is the appearance of the nervous tissue - Answer One large cell with branches surrounded by smaller cells
What is the appearance of epithelial tissue - Answer Mini round south side by side above other cells in no order that are circular
What structures are in the central nervous system -Answer Brain, frontal lobe, parietal lobe, temporal lobe, occipital lobe, spinal cord
What structure is in the peripheral nervous system -Answer Nerves
How might the fact that the frontal up doesn't fully develop in town and virtual is 20 years old or older affect the actions and behaviors that that is not yet in their 20s - Answer Since the brain isn't fully developed until then, people younger would have more trouble controlling their emotions/behaviors and that's one of the things it does.
What may a medical examiner learn by looking at the gross anatomy of the brain - Answer They could tell how old individual was based off of it was fully developed and if there was any damage.
What does a normal brain look like on an MRI - Answer There are no more veggies in grooves and there is normal color and regular size groves/ridges
What does a brain with TBI look like on an MRI - What's the answer There is a lesion and discolor(red)
What does a brain with CTE look like on an MRI - What's the answer The ridges are becoming smaller in the grooves are becoming deeper/wider/darker
What is normal brain tissue look like under a microscope - What's the answer Skinny white lines/few lines
What does a brain following TBI look like under a microscope - Answer Thick white lines/many lines
How am I an individual lose their site or hearing but not have direct damage to their eyes or ears - Answer The individual could damage the part of the brain that controls it. The part of their body still is usable but the person can't control it.
