Exam 6: The Sensorimotor System

_______ are sparsely located throughout the skin and respond to stretching of fingers and limbs.

When athletes work out to improve their stamina, one of the goals is to enhance their

Explain how motor neurons cause muscles to contract.

What are Golgi tendon organs and what is their function?

The band of the skin that is innervated by a single spinal nerve is called a

On entering the spinal cord, the somatosensory projections ascend through the _______ system.

Parkinson's disease is linked to

Which of the following is an example of synesthesia?

The neurotransmitter _______ is produced and released by motor neurons to stimulate skeletal muscles.

Write a short paragraph using the following terms: Extrapyramidal system; basal ganglia; cerebellum; ataxia; Parkinson's disease; Huntington's disease.

What part of the CNS integrates pain information?

Differentiate the motor and sensory homunculi. What purpose does the odd-looking little character (called a homunculus) serve?

Discuss the role of the basal ganglia and the cerebellum in motor control, illustrating your answer with at least one human clinical example for each.

Pain-induced release of substance P in the dorsal horn of the spinal cord causes

Receptors that show little or no adaptation to maintained stimulation are called _______ receptors.

What are tonic and phasic receptors and how are they related to sensory adaptation?

Some individuals born without a _______ still show normal motor skills.

Vibration of _______ stretches the neuronal membrane, allowing sodium channels to open and graded receptor potentials to occur.

Severing sensory fibers from a monkey's arm will cause the monkey to stop using that arm, but it will begin to use it again if the other (good) arm is restrained. This demonstrates that

Naloxone (Narcan), which is used to revive people who are dying of opioid overdose, is an opioid