Unit 8 Blood Vocab

Bloodletting

Practice of draining blood, began by Egyptians to cure diseases.

Arteries

Carry oxygenated blood from the heart to various parts of the body.

Veins

Carry deoxygenated blood to the heart.

Serology

Study of blood.

Spatter

Used to investigate a crime scene and show how an attack was made.

Individual evidence

Can identify a specific suspect.

Class evidence

Can be used to rule out suspects.

Tissue

Distinct types of material consisting of specialized cells and their products; blood is a tissue.

Erythrocytes

Red blood cells.

Leukocytes

White blood cells.

Thrombocytes

Platelets.

Proteins

Antibodies, hormones, and clotting factors; determining factor between different blood types.

Nutrients

O2, glucose, amino acids, salts, and minerals.

Wastes

Urea and CO2.

Blood typing

Identifies the absence or presence of particular proteins embedded in blood cells.

Antigens

Present in red blood cell and foreign cell membranes.

Antibodies

Present in blood plasma.

Antigen-antibody response

Response from the immune system when a foreign material enters the body in which lymphocytes release antibodies to attack the foreign substance.

Transfusions

Transfer of blood from one person to another.

Agglutination

The clumping of red blood cells.

Cohesion

Helps blood remain a curved shape.

Lines of convergence

Lines that show the location of a blood source.

Passive fall

Circular drops with secondary satellites.

Splashes

Help show the position of the victim.

Smears

Bleeding victim touching walls or furniture.

Blood trails

Indicate the victim moving from one place to another.

Blood pools

Caused by a victim bleeding heavily.

Luminol

Chemical used to detect invisible blood residue by reacting with hemoglobin.

Kastle-meyer test

Test swab turns pink if blood is detected.

ELISA test

Uses antibodies that react to human blood to tell if mammal blood is from a human.