BLOOD Flashcards
a transport system that transports nutrients, waste, and hormones
Blood
Erythrocytes sink to the bottom, 45% of blood, a percentage known as the
Hematocrit
Buffy coat is thick, whitish layer between the erythrocytes and plasma
White blood cells and platelets
rises to the top (55% of the blood)
Plasma
Color of oxygen-rich blood
Scarlet red
Color of oxygen-poor blood
Dull red or purple
The metallic and salty taste of blood is because of the presence of
Electrolytes
True or false. blood pH is slightly basic
False. Blood is slightly alkaline, between 7.35 and 7.45
How many liters of blood are found in a healthy adult?
5-6 liters
Blood makes up how much percent of body weight?
8%
The extracellular matrix of the blood; 90% water; Straw-colored fluid
Blood plasma
an important blood buffer and contributes to osmotic pressure
Albumin
clotting proteins; help to stem blood loss when a blood vessel is injured
Fibrinogen
help protect the body from pathogens
Globulin
3 formed elements from the blood
Erythrocytes, leukocytes, and thrombocytes
Main function is to carry oxygen that contains few organelles and lack mitochondria to make room for hemoglobin
Erythrocytes
True or false. Erythrocytes are shaped like biconcave discs
True
Normal count of RBCs
5 million per cubic mm
An erythrocyte can have ___ million hemoglobin molecule
250
is a decrease in the oxygen-carrying ability of the blood due to lower-than-normal number of RBCs and abnormal or deficient hemoglobin content in the RBCs
Anemia
results from abnormally shaped hemoglobin caused by the change of hemoglobin sequence of amino acids
Sickle cell anemia
is a disorder resulting from excessive or abnormal increase of RBCs
Polycythemia
Bone marrow cancer
Polycythemia Vera
Crucial in body’s defense against disease. Complete cells, with nucleus and organelles
Leukocytes