AFAA Personal Trainer Certification Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Study for the AFAA Personal Trainer Certification Exam. Engage with quizzes, flashcards, and multiple-choice questions. Prepare efficiently with hints and explanations to achieve certification success.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is the primary function of sensory neurons?

To transmit signals to muscles
To bring messages to the brain
To cause muscle contractions
To support internal organs

The correct answer is: To bring messages to the brain

Sensory neurons play a crucial role in the nervous system by conveying important information from sensory receptors to the brain. Their primary function is to transmit sensory data, such as touch, temperature, pain, and visual information, which informs the brain about the body’s external environment and internal conditions. This process allows the brain to interpret and respond to stimuli, enabling an organism to react appropriately to surroundings. The other functions listed, although important within the overall functionality of the nervous system, do not accurately describe the primary role of sensory neurons. For instance, muscle contractions are primarily facilitated by motor neurons, which send signals from the brain to muscles. The support of internal organs relates more to the autonomic nervous system and not specifically the sensory pathway.