Lecture 1 Exam Quizlet 6,7,9 & 10

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The precursor cell to a red blood cells is called a:

Erythroblast

A fibroblast is an example is an immature cell that produces fibers

FALSE

Blood is a special form of connective tissue because it does not contain fibers.

FALSE

Brown fat is the predominant type of fat found in humans

FALSE

Brown fat is the predominant type of fat found in humans.

FALSE

Collagen fibers are the only fibers present in loose connective tissue.

FALSE

Ferritin contains two molecules of iron per molecule of ferritin

FALSE

Ferritin contains two molecules of iron per molecule of ferritin.

FALSE

Ground substance contains hyaluronidase which makes ground substance more viscous.

FALSE

Thrombin performs which reaction below in the clotting process.

changes fibrinogen to fibrin

Thromboplastin performs which reaction below in the clotting process.

changes prothrombin to thrombin

The primary function of fibroblasts is to produce:

collagen fibers

The main difference between epithelial tissue and connective tissue is:

connective tissue has intercellular substance

Reticular fibers and collagen fibers are similar in that they both

exhibit same banding periodicity

Intercellular substance is composed of:

fibers and ground substance

Of the functions listed below, which one is not associated with white or yellow fat found in humans.

heat production

Dense Regular Connective Tissue can be found in the

ligaments and tendons

Heparin and Histamine are secreted by cells called:

mast cells

Which blood cell below is not considered to be a granular leukocyte?

monocyte

Loose and Dense Connective Tissue is classified as:

Connective Tissue Proper

In bone marrow, groups of cells called erythroblastic islands are formed from one or two macrophages filled with ferritin or homosiderin surrounded by erythrocytes

FALSE

In the clotting process, the liver produces thromboplastin.

FALSE

Lymphoid tissue is commonly referred to as red bone marrow

FALSE

Lymphoid tissue is commonly referred to as red bone marrow.

FALSE

Platelets are cells derived from megakaryocytes

FALSE

Procollagen fibers are composed of 3 polypeptide chains twisted round each other in a double helix.

FALSE

Procollagen forms a collagen fibril which can be viewed with a light microscope.

FALSE

Reticular fibers are argyrophilic which means that they stain easily with gold stains.

FALSE

Tissue fluid is also drained away from the connective tissue by the lymph capillaries which pump the lymph directly back into the arteriole system.

FALSE

Which of the following entities is not part of the hemoglobin molecule?

Ferritin

Which of the following is not considered a wandering cell of Loose Connective Tissue?

Fibroblast

The fixed macrophages which line the liver sinusoids are called:

Kupffer s cells

Adipose cells are fat cells

TRUE

Adipose cells are fat cells.

TRUE

Collagen fibers exhibit an axial periodicity which appears as repeating bands running down the length of the fibers.

TRUE

Elastic fibers are easily stretched but return to their former shape when stretching stops.

TRUE

Hyaluronic acid is present in synovial joints and its viscous nature makes it a good lubricant enabling joints to move more smoothly.

TRUE

Lymph capillaries begin as blind tubes in the connective tissue

TRUE

Lymph capillaries begin as blind tubes in the connective tissue.

TRUE

Lymphatic obstruction can cause edema due to decreased absorption due to obstruction of lymphatic capillaries by cancer cells or parasites such as those causing elephantiasis

TRUE

Red bone marrow contains both immature and mature blood cells

TRUE

Red bone marrow contains both immature and mature blood cells.

TRUE

Red bone marrow is active in the embryo, newborn and in adults

TRUE

Red bone marrow is active in the embryo, newborn and in adults.

TRUE

Starvation can lead to tissue swelling because of the lower amount of protein in the blood

TRUE

Tendon is an example of a Dense regularly arranged connective tissue which shows fibers arranged in parallel.

TRUE

The Periodic Acid-Schiff Reaction (PAS) oxidizes paired alcohol groups called Schiff s bases to aldehydes

TRUE

Loose Connective Tissue is also called:

areolar connective tissue

Tissue fluid is formed by the diffusion of molecules from the region of the capillary closest to the

arteriole

The immature red blood cell which exhibits intense basophilia in its cytoplasm with Wright s stain is called a:

basophilic erythroblast

Hemopoiesis is the formation of:

blood cells

The precursor cell to granular leukocytes is called a:

myeloblast

In infants and young children, there is a continuous a.subcutaneous fat layer of constant thickness over the whole body called the:

panniculus adiposus

Which blood cell below is not a myeloid element?

plasma cell

The immature red blood cell which exhibits cytoplasmic staining anywhere from purple to lilac or gray after staining with Wright's stain because of varying hemoglobin amounts is called a:

polychromatophil erythroblast

Which function below is not associated with the Reticuloendothelial System

produce calcified cartilage

Which function below is not associated with the Reticuloendothelial System.

produce calcified cartilage

Edema can be defined as the

swelling caused by excess tissue fluid

Reticular tissue is not found in which tissue or organ listed below

umbilical cord

Reticular tissue is not found in which tissue or organ listed below:

umbilical cord

Absorption of water from the tissue fluid back into the blood occurs in the region of the capillary closest to the:

venule


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