The thin extracellular layer, consisting of the basal and reticular lamina, that anchors epithelial cells to underlying connective tissue is called the
a) basement membrane.
b) tunica adventitia.
c) tight junction.
d) adherens junctions.
e) gap junctions.
Answer: a
You might also like to view...
Cells of the stratum spinosum have many interlocking desmosomes that will remain between the cells as they migrate to the stratum corneum. These cell junctions serve the body by ________
A) preventing ultraviolet light from penetrating the deeper layers of the epidermis B) allowing secretions like sweat or sebum to pass through C) preventing mechanical stress or trauma from damaging the epidermis D) stopping water loss and preventing dehydration
The head is ____ to the heart
a. superior b. distal c. deep d. inferior
Where in the eye is aqueous humor located?
A) in the anterior cavity, between the cornea and the retina B) in the posterior cavity, between the lens and the retina C) in the anterior cavity, between the cornea and the lens D) in the posterior cavity, between the cornea and the lens E) in the anterior cavity, between the ciliary body and the ora serrata
Which of the following is correct regarding acclimatization?
A) At high altitudes, hemoglobin's affinity for O2 is increased because BPG concentrations increase. B) High-altitude conditions always result in lower-than-normal hemoglobin saturation levels because less O2 is available to be loaded. C) Decreases in arterial PO2 cause the peripheral chemoreceptors to become less responsive to increases in PCO2. D) When blood O2 levels decline, the kidneys produce more erythropoietin, which stimulates breakdown of red blood cells in the spleen.