What is the role of the nervous system in digestion?
A. To provide electrical signals to initiate peristalsis.
B. To provide passage of nutrients throughout the body
C. To provide oxygen
D. To provide enzymes
A. To provide electrical signals to initiate peristalsis.
Where does most of the absorption of nutrients occur?
A. Mouth
B. Small intestine
C. Stomach
D. Large intestine
B. Small intestine
The pizza that you ate for lunch is being digested. Summarize what happens to it in your stomach.
A. Enzymes from the liver and pancreas break down fats and proteins in the pizza.
B. The waste materials are compacted and then removed from the body
C. The pizza is mechanically broken up by teeth and mixed with saliva
D. The pizza is churned, mixing it with digestive enzymes and gastric acid
D. The pizza is churned, mixing it with digestive enzymes and gastric acid
How does the nervous system influence the respiratory system?
A. It regulates blood pressure
B. It regulates urine output
C. It stimulates defense against pathogens
D. It controls muscle contraction
D. It controls muscle contraction
Which system comprises of skin, hair, and other parts of the outermost layer of the body?
A. Integumentary system
B. Endocrine system
C. nervous system
D. Lymphatic system
A. Integumentary system
The correct answer is A. To provide electrical signals to initiate peristalsis.
The nervous system plays a vital role in the process of digestion by providing the necessary electrical signals to initiate peristalsis. Peristalsis is the involuntary muscular contractions that propel food through the digestive tract. These contractions are coordinated by the enteric nervous system, which is a major subdivision of the autonomic nervous system.
To get to this answer, you can start by understanding the main functions of the nervous system and then focusing on its role in the digestive process. First, the nervous system is responsible for coordinating and controlling the activities of the body, including the functioning of organs and systems. Second, digestion is a complex process involving the mechanical and chemical breakdown of food in order to extract nutrients.
One function of the nervous system in digestion is to stimulate the muscles of the digestive tract to move food along the digestive system. This movement is achieved through peristalsis, which is coordinated by the enteric nervous system. The enteric nervous system consists of a network of neurons located in the walls of the gastrointestinal tract, extending from the esophagus to the anus. It can independently control gastrointestinal function, but it is also influenced by the central nervous system.
To summarize, the nervous system facilitates digestion by providing the necessary electrical signals to initiate peristalsis, which propels food through the digestive system.