Exam AP pg 15-20

What are the five components of a somatic spinal reflex?

• Neuron, Synapse, Muscle, Brain, Reflex arc
• Integration center, Sensory neuron, Muscle, Reflex arc, Receptor
• Somatic receptors, afferent nerve fibers, Efferent nerve fiber, effectors

• Receptor, Motor neuron, Sensory neuron, Brain, Effector

What are examples of the stretch reflex?

• stretch reflex is used to maintain a desired muscle length; stretch activates the muscle

  spindle;

• Feeling hungry after smelling food
• Blinking in response to a bright light
• Sweating when feeling hot

What are examples of the flexor reflex?

• Blinking your eyes when something approaches your face.
• Flexor (withdrawal) reflex is initiated by painful stimulus; it causes automatic withdrawal

  of threatened body part

• Raising your arm to signal for help after falling down.
• Stretching your leg to kick a ball during a game.

What are examples of the crossed extension reflex?

• Raising both arms to wave
• Kicking a soccer ball with both legs
• Bending the knee while sitting down
• Crossed extensor reflex occurs with flexor reflexes in weight-bearing limbs to maintain

  balance; consists of ipsilateral withdrawal reflex and contralateral extensor reflex

What are examples of the tendon reflex?

• tendon reflex is a response to excessive tension on the tendon; inhibits muscle from

  contracting too strongly

• Pupillary reflex
• Withdrawal reflex
• Blink reflex

What does it mean for a reflex to be contralateral?

• A reflex is contralateral if it occurs on the same side of the body as the stimulus.
• A reflex is contralateral if it involves multiple body systems simultaneously.
• A reflex is contralateral if it is triggered by external stimuli only.
• A reflex is contralateral is input and output are on opposite sides

What does it mean for a reflex to be Ipsilateral?

• Ipsilateral refers to a reflex that does not involve any side of the body.
• Ipsilateral means the reflex occurs on the opposite side of the body as the stimulus.
• Ipsilateral indicates a reflex that is delayed in response to the stimulus.
• Ipsilateral means the stimulus and response on same side

What does it mean for a reflex to be Intersegmental?

• An intersegmental reflex is the input and output occur at different levels (segments) of the

  spinal cord

• An intersegmental reflex is a type of voluntary movement.
• An intersegmental reflex is a reflex that occurs in the brain only.
• An intersegmental reflex only involves one spinal cord segment.

What does it mean for a reflex to be Monosynaptic?

• A reflex is monosynaptic if it involves multiple synapses between neurons.
• A reflex is monosynaptic if it involves only one synapse in the CNS in its simplest pathway

• A reflex is monosynaptic if it only involves sensory neurons.
• A reflex is monosynaptic if it requires a complex neural pathway.

What does it mean for a reflex to be Polysynaptic?

• A polysynaptic reflex is a involves more than one synapse in the CNS

• A polysynaptic reflex is a reflex that is always faster than a monosynaptic reflex.
• A polysynaptic reflex is a reflex that occurs without interneurons.
• A polysynaptic reflex involves only one synapse.