Which of the Following Is a Feature of Peristalsis

question 8

Multiple Choice

Which of the following is a feature of peristalsis?

• A)It remains quiet between meals when the GI tract is empty
• B)It occurs along the GI tract at a constant rate when food is present
• C)It involves parallel and circular muscles found in the walls of the intestines but not the stomach
• D)It consists of wavelike muscular contractions resulting from alternate tightening and relaxing of circular muscles and longitudinal muscles

Recognize the advancements in technological and social measures in controlling population growth.

Understand the demographic transition theory and its stages in the context of population dynamics.

Identify the impact of migration on population distribution and change.

Understand the concept of fertility rates and how they are calculated.

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Definitions:

Na+

Na+, or sodium ion, is an essential electrolyte in the body, playing key roles in fluid balance, nerve signal transmission, and muscle contraction.

K+

The symbol for potassium ions, which are essential for various physiological functions, including nerve signal transmission and muscle contraction.

Ca2+

Calcium ions, a divalent metal cation crucial for many biological processes including muscle contraction, neurotransmitter release, and cell signaling.

Respiratory Center

A group of neurons in the brainstem that regulate breathing rate and depth to maintain homeostasis.