HBS 2.1.7 reflexes

Front

What is the difference between reflexes and reactions?

Back

Reflexes are automatic responses to stimuli that do not require conscious thought, while reactions involve conscious effort and cognitive skill.

Front

True or False: Sensory neurons send signals to the brain for the patellar reflex.

Back

False. In the patellar reflex, sensory neurons send signals directly to the spinal cord.

Front

Which develops first in children: good reflexes or fast reaction time?

Back

Good reflexes develop first.

Front

What happens to reflexes as a person ages (60 plus)?

Back

Reflexes generally get slower with age.

Front

Which generally requires fewer neurons: reflex or reaction?

Back

Reflex requires fewer neurons.

Front

Define 'reflex'.

Back

A reflex is an involuntary and nearly instantaneous movement in response to a stimulus.

Front

Define 'reaction'.

Back

A reaction is a voluntary response to a stimulus that involves conscious thought and decision-making.

Front

What is the role of sensory neurons in reflex actions?

Back

Sensory neurons transmit signals from sensory receptors to the spinal cord, initiating a reflex action.

Front

What is the patellar reflex?

Back

The patellar reflex, also known as the knee-jerk reflex, is a reflex action that occurs when the patellar tendon is tapped, causing the leg to kick.

Front

How do reflexes contribute to survival?

Back

Reflexes allow for quick responses to harmful stimuli, helping to protect the body from injury.