Reaction times are slower than reflexes To explain why creat

Reaction times are slower than reflexes. To explain why, create a flow chart of the neuronal pathway (from sensory input to motor output) that results in the activation of a motor neuron for each of the following two situations: Someone tells you to kick your leg out. Someone elicits the knee-jerk reflex by tapping your tendon with a rubber mallet.

Solution

Reaction time is a measure of the quikness an organism responds some sort of stimulus.REflexes and reactions while seeming similar are quite different. Reflexes are involuntary, used to protect body and are faster than reaction.Reflexes are usually a negative feedback loop and act to help return the body to its normal functioning stability, or homeostasis.

1.somebody tells to kick your leg out- there is auditory information that has to be processed and decisions regarding a correct course of action. The brain then needs to send many signals to various muscles. Feet begin to move, along with many more processes. This is the work of many neurons as well as numerous systems and circuits in the brain, it is actually a symphony of hundreds of thousands of neurons working together to produce a reaction.

2.The classic example of a reflex is the patellar reflex or knee jerk reflex.

knee jerk movement - the muscles in your leg have strech receptors.they react to change in length of the muscle. when the rubber mallet hits the tendon at the knee, it makes a muscle in the front of your thigh longer (streches it). that stimulates the strech receptors in that muscle. when the strech receptors are stimulated they send a message to muscles of your thigh resulting in muscles in the front of your thigh contract.the muscle in the back of your thigh relax and thus your foot jerks. also called patellar reflex.

stretch receptor in thigh muscle---->sensory neuron in thigh muscle-------->Central nervous system------>motor neuron in the thigh muscle-------->thigh muscle

knee reflex arc is a spinal reflex it never needs brain.