15 Questions
What is the approximate length of individual smooth muscle fibers in the gastrointestinal tract?
200-500 micrometers
What is the approximate diameter of individual smooth muscle fibers in the gastrointestinal tract?
2-10 micrometers
What allows low-resistance movement of ions from one smooth muscle cell to the next within each bundle?
Gap junctions
What characterizes the electrical activity of the smooth muscle in the gastrointestinal tract?
Slow waves and spikes
How does electrical excitation of one muscle layer in the gastrointestinal tract typically affect the other?
Excitation of the other layer
What is the approximate number of red blood cells in each person?
25 billion
What is the main focus of the book mentioned in the text?
Studying the coordination of control systems in the human body
What do all cells deliver into the surrounding fluids?
Products of chemical reactions
What is the main role of microbiota in the human body?
Living in harmony with human hosts
What is pathophysiology primarily concerned with?
Disordered body function
What is the main focus of physiology?
Understanding the physical and chemical mechanisms responsible for the origin and development of life
Why do humans seek food when hungry and refuge when afraid?
Due to automatic life sequence
How does human physiology contribute to medicine?
By integrating multiple functions of cells, tissues, and organs into the functions of the living human being
What allows humans to exist under widely varying conditions?
Sensing, feeling, and knowledgeable beings
Why does the science of physiology have numerous subdivisions?
Each type of life has its own functional characteristics
Test your knowledge about the functions of the alimentary tract, including movement of food, secretion of digestive juices, absorption of nutrients, circulation of blood, and control of these functions.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
