Biochemistry of Movement

The following statements are true about the peripheral nervous system except

• PNS is the nervous system that is outside of CNS

• Consists of brain and spinal cord

• Consists of nerves that extend from the brain & spinal cord

• consists of spinal and cranial nerves

_________ carry impulses from sensory to CNS and _____ carry impulses from CNS to effector organs.

• Motor neurons; sensory neurons

• Interneurons; motor neurons

• Sensory neurons; motor neurons

• Sensory neurons; interneurons

Name the structure that are labelled

• A: Axon; B: Axon terminal

• A: Axon terminal; B: Axon

• A: Dendrites; B: Axon terminal

• A: Dendrites; B: Axon

Interneurons are found in

• CNS

• PNS

• sensory receptors

• organs

Identify the ions that are present in high concentrations as presented by A and B

• A: sodium ; B: potassium

• A: potassium ; B: sodium

• A: sodium ; B: sodium

• A: potassium ; B: potassium