Nervous System Exam-G10P

Indicate what of the following parts of the nervous system are part of the Peripheral Nervous System (PNS).

• Brain

• Autonomic nervous system

• Spinal nerves

• Spinal cord

• Cranial nerves

The nerve cell that carries impulses from a sense receptor to the brain or spinal cord. It is the function of...

• Ganglion

• Interneuron

• Motor neuron

• Sensory neuron

Choose the correct answer

• 1.Axon terminal 2.Dendrite 3.Axon 4. Cell body 5. Nucleus 6. Schwann cell 7. Node of Ranvier.

• 1.Dendrite 2. Cell body 3.Nucleus 4. Node of Ranvier 5. Axon 6.Schwann cell 7.Axon terminal

• 1.Dendrite 2.Cell body 3.Nucleus 4.Schwann cell 5. Axon 6. Node of Ranvier 7. Axon terminal.

• 1.Axon terminal 2.Cell body 3.Nucleus 4.Schwann cell 5.Axon 6.Node of Ranvier 7.Dendrite.

The function of the Reflex is:

• The chemical secreted into the gap between neurons at a synapse.

• A rapid automatic response to a stimulus.

• The covering of fatty material that speeds up the passage of nerve impulses.

• The high speed signals that pass along the axons of nerve cells.

• None of the above

Choose the correct answers to the number in the picture:

• 3.interneuron - 4.integration center

• 1.sensory neuron - 2.motor neuron

• 5.receptor - 2. sensory neuron

• 5.stimulus - 1.interneuron

Choose the correct pair

• Cerebrum-Coordinating muscle movements.

• The brainstem-Control higher functions: learning, reasoning and speech.

• Hypothalamus-Processes and transmits information from all senses except smell.

• Cerebellum-Produces and regulates neurochemicals.

• None of the above

The part of the peripheral nervous system that regulates the involuntary responses...

• Peripheral nervous system

• Autonomic nervous system

• Sympathetic nervous system

• Parasympathetic nervous system

It is the 1st cranial nerve that carries impulses from the organ of smell in the nose to the brain.

• Olfactory nerve

• Vestibular nerve

• Optic nerve

• Sciatic nerve

A neuron has a polarized membrane, which means it is relatively positive on the outside of the membrane to relatively negative on the inside. Which of the following creates this opposite charge characteristic of a neuron's membrane?

• sodium ions on the outside and proteins on the inside.

• sodium ions on the outside and potassium ions on the inside.

• sodium and potassium ions on the outside and proteins on the inside.

• None of the above

When a neuron is depolarized, the gated channels of the membrane open to allow __________ to enter the neuron. A neuron becomes hyperpolarized when the gated channels of the membrane open thus allowing __________ to exit the neuron.

• K +; Na +

• Na +; K +

• Na +; protein

• None of the above