Principle to Blood and blood Stains Flashcards
Forensic experts use this principle to identify and differentiate evidence because they know that individuals have their own unique characteristics or even identify from all objects.
Law of Individuality
It states that everything undergoes change over time, these changes can be physical, chemical, or biological, in which it affects characteristics and appearance of objects.
Law of Progressive Change
This principle allows you to identify or analyze something, you must compare it with something similar
Principle of Comparison
It emphasizes that the quality and reliability of an analysis are directly dependent on the quality of the sample being analyzed.
Principle of Analysis
The identification and conclusions are based on the probability, which means that certainty is often expressed rather than absolute certainty.
Law of Probability
A fluid that contains a mixture of components to function the body properly.
Blood
Enumerate the four main components of blood
- RBC
- WBC
- Platelets
- Plasma
A cell in which it carries the oxygen and hemoglobin to flow in our whole body.
Red Blood Cells
The function of this component is primarily to fight the infections and disease in our body
White Blood Cells
This component helps to aid in clotting
Platelets
It carries nutrients such as (glucose, amino acids) hormones and waste.
Plasma
Albumin contain/s of what?
Enzyme and Proteins
It performs important functions like clotting, transporting nutrients, and defending against infections.
Albumin
It includes minerals and salts that help maintain the balance of fluids in our body and support various biological processes.
Inorganic Subtance
pH scales are ranging?
0-14
The normal pH ranging scale of blood?
7.35 - 7.45
The pH ranging scale for an acidic (acidosis)?
0 - 6
The pH ranging scale for an alkaline (alkalosis)?
8-14
The importance of the study of blood?
- As circumstantial or corroborative evidence against or in favor of the perpetrator
- For disputed parentage
- Determination of the cause of death and the length of time the victim survived the attack
- Determination of the direction of escape of the victim or the assailant
- Determination of the origin of the flow of blood
- Determination of the approximate time the crime was committed
It is considered as the largest circulating tissue of the body.
Blood
A fluid that circulates into the Cardio Vascular System
Blood
Nature of Blood?
- Largest circulating tissue of the body
- Consists of vital substances
- Fluid that circulates into the Cardiovascular System (CVS)
It responsible for transporting oxygen (O₂) from the lungs to the body’s tissues and carbon dioxide (CO₂) from the tissues back to the lungs for exhalation
Blood
It carries nutrients absorbed from the digestive system to cells throughout the body and transports metabolic waste products to the kidneys, liver, and lungs for elimination.
Blood