ATI RN
Questions About Cells and Tissues Questions
Question 1 of 5
What is the function of gap junctions in cell communication?
Correct Answer: B
Rationale: Gap junctions facilitate direct electrical signal transfer.
Question 2 of 5
The epithelial tissue found in areas subject to considerable friction and abuse, such as the esophagus, is:
Correct Answer: D
Rationale: Stratified squamous epithelium, with multiple layers, protects areas like the esophagus from friction and wear.
Question 3 of 5
Blood platelets assist in arresting bleeding by
Correct Answer: B
Rationale: Platelets aggregate at injury sites, adhering to collagen to form plugs, and release clotting factors and vasoconstrictors like serotonin.
Question 4 of 5
The cell membranes in skeletal muscle
Correct Answer: C
Rationale: Insulin increases glucose uptake by facilitating transporter movement to the muscle cell membrane.
Question 5 of 5
Thirst can be
Correct Answer: A
Rationale: Thirst is triggered by increased plasma tonicity (osmoreceptors in hypothalamus); low volume also stimulates it, and ADH increases.