2. Conscious and unconscious responses 3/4

Conscious activities are controlled by the ____ nervous system

• somatic
• autonomic
• peripheral
• central

Unconscious activities are controlled by the ____ nervous system

• somatic
• autonomic
• peripheral
• central

The brain and spinal cord are part of the ____ nervous system

• somatic
• autonomic
• peripheral
• central

An example of a reflex action includes

• Touching a butterfly

• Brushing your hand against the side of your body

• Touching a hot stove and removing your hand quickly

• Your legs moving as you walk

In a reflex action, the __________ initially bypasses the ___________

• Motor neuron, brain

• Sensory neuron, brain

• Sensory neuron, spinal cord

• Motor neuron, spinal cord

In a reflex arc, the sensory neuron leads to the ___________ and the motor neuron leads to the __________

• Spinal cord, CNS

• CNS, muscle

• Spinal cord, muscle

• Muscle, CNS

Which of the following describes one thing that happens in the spinal cord during a reflex arc?

• The stimulus causes a sensory neuron to generate a nerve impulse

• The nerve impulse carries a signal to be directly sent to a sensory neuron

• The motor neuron causes a contraction in the muscle

• Interneurons relay the message to motor neurons

If you pick up a hot plate _____________ receptors in your ___________ detect this change

• Sensory, skin

• Sensory, muscle

• Motor, skin

• Intermediate, muscle

Reflex actions are important because

• They provide a quick, involuntary response

• They prevent injury

• They are adaptive responses, ie they help the organism to survive

• All of the above

When you touch the hot handle of a pan, this causes a reflex which happens at the __________ level without having the brain process the impulse first.

• Brain Stem
• Frontal Lobe
• Spinal Cord and Parietal Lobe
• Spinal Cord