Which component of bone impedes the distribution of nutrients
and oxygen to osteocytes?
a. Extracellular matrix
d. Cell processes
e. Haversian canals
Which if the following most accurately describes compact bone?
In which of the following structures of the oral cavity would taste
buds be localized in the highest concentration?
a. Fungiform papillae
c. Filiform papillae
d. Ventral surface of the tongue
e. Vallate papillae
Certain antibiotic th
Which of the following accurately describes glucocorticoids?
a. Include the steroid hormone aldosterone
b. Are produced in response to stimulation by ACTH
c. Are produced primarily by the zone glomerulosa
d. Typically enhance the immune respons
Which function is carried out by all lymphoid tissues and organs?
a. Filtration of lymph
b. Filtration of blood
c. Extramedullary hemopoiesis
d. Production of lymphocytes
e. Destruction of old erythrocytes
Which structure is partly encapsulated
Which of the following is the thickest component of the cornea?
a. Corneal epithelium
c. Descemet membrane
d. Bowman membrane
e. Corneal endothelium
Which description is accurate for lens fibers?
a. Are terminally differentiated fibro
Which biochemical component of the erythrocyte cell surface is
primarily responsible for determining blood type (eg, the A-B-O
a. Fatty acid
c. Nucleic acid
What cell in circulating blood
Which of the following accurately describes spermiogenesis?
a. Occurs before puberty
b. Involves stem cells, meiosis, and spermatogenesis
c. Involves cytodifferentiation of early spermatids
d. Occurs in diploid cells
e. Results in the formation
THE CRCULARITY TISSUE
Vasa vasorum serve a function analogous to that of which of the
b. Basal lamina
c. Coronary arteries
d. Endothelial diaphragms
What tissue is directly associated with and extends into the
In a liver biopsy from a long-time drug user which of the following
hepatocyte organelles would be expected to be more extensive
a. Rough endoplasmic reticulum
b. Golgi apparatus
e. Smooth endoplasmic re
Which stage of ovarian follicle development is characterized by an
initial period of follicular fluid accumulation?
a. Graafian follicle
b. Mature follicle
c. Primordial follicle
e. Secondary follicle
Which of the following is charact
In which of the following cells involved in erythropoiesis does
hemoglobin synthesis begin?
a. Orthochromatic erythroblast
b. Polychromatophilic erythroblast
d. Basophilic erythroblast
Which of the following c
Which of the following components of the epidermis provides
sealant between adjacent cells?
a. Keratohyaline granules
b. Glycolipids and lipids
e. Adherent junctions
Which cells derive from precursors originating in the
Blood in the renal arcuate arteries flows next into which vessels?
a. Afferent arterioles
b. Efferent arterioles
c. Glomerular capillaries
d. Interlobar arteries
e. Interlobular arteries
Which cell type comprises the visceral layer of Bowman ca
Which of the following connective tissue components is located in
the ECM but not in the ground substance?
a. Collagen bundles
What cells numerous in loose connective tissue
In transmission EM preparations of cells the cell membrane often
appears as a trilaminar structure having two parallel dark-staining
components on either side of an unstained middle layer. This
central poorly stained region of the
Which of the following is characteristic of the chromatophilic
material called Nissl substance in neural tissue?
a. Found throughout neurons
b. Site of mRNA translation for proteins of the axolemma
c. Most abundant in unipolar neuro
White adipocytes are derived developmentally from what
c. Mesenchymal cells
d. Brown adipocytes
e. Mast cells
What are the relatively large particles formed in the intestinal
Functions of the basement membrane include which of the
b. Molecular filtering
c. Active ion transport
e. Modification of secreted proteins
Using immunohistochemistry a population of
The molecular basis for the shock absorbing properties of
cartilage involves which of the following?
a. Electrostatic interaction of proteoglycans with type IV collagen
b. Ability of glycosaminoglycans to bind anions
c. Noncovalent bin
The basal lamina of a muscle fiber is part of which structure?
e. Sarcoplasmic reticulum
With the transmission electron microscope skeletal muscle fibers
can be seen to contain str
HISTOLOGY & ITS METHODS OF STUDY
In preparing tissue for routine light microscopic study, which
procedure immediately precedes clearing the specimen with an
Which of the following components increase(s) as a proportion of
the respiratory tract wall from trachea to alveoli?
b. Elastic fibers
c. Smooth muscle
e. Goblet cells
Air moving rapidly across the vocal cords and causing
Which of the following facilitates breakdown of the nuclear
envelope during the onset of mitosis?
a. Disassembly of nucleosomes in the associated constitutive
b. Increased export of material by the nuclear pore comple