What is the main cause of phantom limb sensations experienced after an amputation?

• Poor blood circulation in the residual limb

• Psychological trauma from losing the limb

• Miscommunication between the brain and the nervous system

• Infection in the amputation site

What is the central nervous system (CNS) divided into?

• Brain and Spinal cord

• Brain and Cranial nerves

• Spinal cord and Spinal nerves

• Cranial nerves and Spinal nerves

All parts of the Nervous System except for the Brain and Spinal cord

• Nerves

• Neuron

• Central Nervous System

• Peripheral Nervous System

How do neurons communicate with one another?

• Electrically

• Chemically

• Through Radiowaves like impulses

• Both Electrically and Chemically

Which of the following structure at a synapse has the neurotransmitter?

• Schwan cells

• Synaptic cleft

• Synaptic knobs

• Synaptic vesicles

Green line of the graph suggests

• Opening of Voltage gated K+ Channels and efflux of K+

• Opening of Voltage gated K+ Channels and Influx of K+

• Opening of Voltage gated Na+ Channels and influx of Na+

• Opening of Voltage gated Na+ Channels and efflux of Na+

Label properly:

• 1- Dendrites

  8- Schwann Cell

• 2- Neurolemma

  4- Node of Ranvier

• 5- Axon

  6- Nucelus of schwann cell

• 3- Myelin sheath

  2- Nucelus

What is the function of Oligodendrocyte?

• To produce Myelin sheath

• To produce CSF

• To maintain permeability of BBB

• Phagocytosis of microbes and neuronal debris

What is the other name for sensory neuron?

Which type of neurons process information coming from sensory neurons?

• Afferent neurons

• Efferent neurons

• Interneurons

• Spinal neurons