Lecture 1 Exam Quizlet 6,7,9 & 10
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
