A&P Nervous System

The two types of cells that compose nervous tissue are _________.

• Astrocytes and Neurons
• Oligodendrocytes and Schwann cells
• Neuroglia and Axons
• Neurons and Neuroglia

Which lobe of the brain is used in vision?

• Occipital Lobe
• Frontal Lobe
• Temporal Lobe
• Parietal Lobe

Which describes the ion concentrations inside and outside of a neuron at rest?

• Sodium and potassium ions are both at higher concentration the inside of the neuron.
• Sodium and potassium ions are both at higher concentration the outside of the neuron.
• The sodium ion concentration is higher on the inside of the neuron and potassium ion concentration is higher on the outside of the neuron.
• The sodium ion concentration is higher on the outside of the neuron and potassium ion concentration is higher on the inside of the neuron.
• The concentrations of sodium and potassium ions are both equal inside and outside of the cell.

During an action potential, depolarization occurs as a result of

• potassium ions diffusing to the outside of the cell membrane.
• potassium ions diffusing to the inside of the cell membrane.
• sodium ions diffusing to the outside of the cell membrane.
• sodium ions diffusing to the inside of the cell membrane.

During an action potential, repolarization occurs as a result of

• potassium ions diffusing to the outside of the cell membrane.
• potassium ions diffusing to the inside of the cell membrane.
• sodium ions diffusing to the outside of the cell membrane.
• sodium ions diffusing to the inside of the cell membrane.

Which of the following lists parts of a reflex arc in the correct sequence?

• Receptor, motor neuron, sensory neuron, effector
• Effector, receptor, sensory neuron, motor neuron
• Effector, sensory neuron, receptor, motor neuron
• Receptor, sensory neuron, motor neuron, effector
• Receptor, effector, sensory neuron, motor neuron

Which component of some reflex arcs is located entirely within the central nervous system?

• Interneuron
• Effector
• Motor Neuron
• Sensory Neuron

The area of the brain that interprets visual stimuli is found in the

• parietal lobe of the cerebrum
• medulla oblongata
• cerebellum
• occipital lobe of the cerebrum
• temporal lobe of the cerebrum

The outer membrane covering the brain is composed of fibrous connective tissues and is called the _____.

• dura mater
• pia mater
• arachnoid mater
• periosteum

What structure connects the left and right cerebral hemispheres?

• corpus callosum
• longitudinal fissure
• choroid plexus
• motor pathway