You observe a tissue that has cells of varying heights. At first glance, it appears that the tissue has multiple cell layers, but upon closer investigation you see that all of the cells attach to the same basement membrane. What classification would you give to this epithelial tissue?

What will be an ideal response?


Answer: pseudostratified columnar epithelium; While pseudostratifed epithela have the illusion of being a multi-layered tissue it is in fact made up of only one cell layer. The irregular heights of the cells that make up pseudostratified epithelia give the tissue a layered appearance. In reality, all of the cells in this tissue rest on the basement membrane.

Anatomy & Physiology

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Which of the following factors affects lift force?

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Answer the following statement true (T) or false (F)

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Pneumothorax (collapsed lung) is a condition that occurs when space forms between the lung and the wall of the pleural cavity. This space would be between ________. 

A. parietal pleura and the visceral pericardium B. visceral pericardium and the parietal pericardium C. the parietal pleura and visceral pleura D. parietal pericardium and the parietal pleura

Anatomy & Physiology

The quantal nature of chemical synaptic transmission is BEST supported by observation of:

A. spontaneous mEPPs B. discrete jumps in EPPs amplitude when [Ca++] is normal C. EPPs that vary smoothly in amplitude D. a constant EPP amplitude E. evoked EPPs smaller than mEPPs

Anatomy & Physiology