Exam 1 Practice Human A&P II

What makes blood an unusual connective tissue is

the highly fluid nature of its extracellular matrix and the lack of fibers there.

Red blood cells, white blood cells and platelets are all

formed elements

The study of blood is called

hematology

Plasma is ____ while formed elements are ____.

the liquid portion of blood; the cells

Blood is more viscous than water. This is because it

becomes more dense when cells are added.

Which of the following functions is associated with the blood?

delivery of oxygen to tissue cells

A blood clot that forms when a blood vessel is cut is an example of blood functioning in

protection

The pale yellow fluid that makes up about 55% of blood volume is

plasma

Plasma

is a colloidal solution

The major component of plasma is

water

The liquid material remaining after blood-clotting proteins have been removed as a result of clotting is called

serum

Plasma is considered a colloid because it contains suspended substances that

don’t settle out in solution

Which of the following plasma proteins is most abundant?

albumin

Functions of plasma proteins include

regulation of osmotic pressure

Plasma

is the liquid matrix of the blood

The plasma component that forms fibrin, the insoluble protein, in a blood clot is

fibrinogen

The cellular components of blood, representing 45% of blood volume are called

formed elements

The stem cell capable of dividing to produce any formed element cell line is the

hemocytoblast

Stem cells

give rise to formed elements in the blood.

Hematopoiesis is the process of

blood cell productionin the bone marrow.

Jaundice is associated with plasma and interstitial space buildup of

bilirubin

Where is oxygen attached on a hemoglobin molecule?

on the iron attached to the heme

The most numerous formed element is the

erythrocyte

Anemia may result from a

decrease in a number of RBC’s

Increased number of reticulocytes in circulating blood indicates

erythropoiesis

Lack of cytoplasmic organelles is important to red blood cells because

more space is available to carry hemoglobin

Hemolysis is rupture of

red blood cells

When stimulated by erythropoietin to produce red blood cells, the hemocytoblast deliver these new cells in

4 days

Each erythrocyte carries how many oxygen atoms?

1 billion

Which of these areas does NOT contain red marrow in the adult?

distal femur

Old, damaged, or defective erythrocytes are removed from the blood by

macrophages

Cells in the red bone marrow that give rise to all the formed elements of the blood are called

stem cells

Each hemoglobin molecule has __________ heme group(s) and __________ globin molecule(s).

4,4

Which of these conditions occur in a normal individual living at a high altitude?

secondary polycythemia

Which of these components of hemoglobin is correctly matched with its fate following the destruction of an erythrocyte?

globin - broken down into amino acids

When large quantities of blood are lost, erythrocytes must be replaced to restore

oxygen-carrying capacity