Multiple Choice
In the context of tissue structure and blood components, platelets (thrombocytes) are formed by cytoplasmic fragmentation of which type of cell?
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1. Overview of Cell Biology
Overview of Tissue Structures
Multiple Choice
In the gastric mucosa, which cell type is NOT found within the gastric pits (foveolae) of the stomach?
A
Surface mucous (foveolar) cells
B
Parietal (oxyntic) cells
C
Mucous neck cells
D
Paneth cells
Verified step by step guidance1
Step 1: Understand the structure of the gastric mucosa, which includes the gastric pits (foveolae) and the gastric glands beneath them.
Step 2: Identify the cell types typically found in the gastric pits: Surface mucous (foveolar) cells line the pits, and mucous neck cells are located in the neck region of the glands.
Step 3: Recognize that parietal (oxyntic) cells are found deeper in the gastric glands, responsible for secreting hydrochloric acid, but they are still part of the gastric mucosa.
Step 4: Recall that Paneth cells are specialized secretory cells found in the small intestine, particularly in the crypts of Lieberkühn, and are not present in the gastric pits of the stomach.
Step 5: Conclude that Paneth cells are the cell type NOT found within the gastric pits (foveolae) of the stomach.
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