Question

explain how each of the following reflexes serve a useful purpose. 1. the blinking of an eye 2. pulling finger back from heat 3. increased heartbeat during exercise 4. elimination of waste from the body 5. taste, sight, or smell of food stimulates the flow of saliva in mouth. 6. spitting out a bad - tasting food 7. a fever

Explanation:

1. Protects the eye from debris and keeps it moist.
2. Prevents tissue damage from heat.
3. Supplies more oxygen - rich blood to muscles during exercise.
4. Removes waste products to maintain internal balance.
5. Begins the digestion process by producing saliva for food breakdown.
6. Avoids ingestion of potentially harmful substances.
7. Helps the body fight off infections by creating an inhospitable environment for pathogens.

Answer:

1. Protects eye and keeps it moist.
2. Prevents heat - related tissue damage.
3. Delivers more oxygen to muscles.
4. Maintains internal balance by removing waste.
5. Initiates food digestion with saliva.
6. Avoids harmful substance ingestion.
7. Assists in fighting infections.