Exam 8: The Nervous System

Identify the correct sequence of steps in the generation of an action potential. 1.Activation of sodium channels and rapid depolarization 2)Inactivation of sodium channels and activation of potassium channels 3)Depolarization to threshold 4)Closing of potassium channels

Clusters of rough endoplasmic reticulum and free ribosomes are known as

Which of the following delivers poorly localized sensations of touch,pressure,pain,and temperature to the primary sensory cortex?

The spinothalamic tracts function in

Almost 75 percent of all parasympathetic outflow travels along the

Multiple areas of the brain can regulate breathing at the same time by stimulating the diaphragm for contraction.This activity is best explained by

The resting potential of a neuron is

As a result of a severe concussion from a car accident,you have a terrible problem with both retaining new information and recalling old information.The injury affected the

________ refers to the loss of memory from disease or trauma.

Which of the following contains a delicate network of collagen and elastin fibers through which cerebrospinal fluid circulates?

In multiple sclerosis,there is progressive and intermittent damage to the myelin sheath of peripheral nerves.This results in poor motor control of the affected area.Why does destruction of the myelin sheath affect motor control?

Most neurons in the brain are

You bowl with your right arm,but you write with your left hand.This is related to differences in the

The ________ division of the nervous system brings sensory information to the central nervous system.

Photo Credit: Ralph T. Hutchings Figure 8-1 Structural Components of the Brain (Sagittal Section) Use Figure 8-1 to identify the labeled part. -Structure J is the

Axons that cross from one side of the spinal cord to the other are found in the

The sensory nuclei of cranial nerves V-VIII are found within which of the following?

The cortex inferior to the lateral sulcus is the

Photo Credit: Ralph T. Hutchings Figure 8-1 Structural Components of the Brain (Sagittal Section) Use Figure 8-1 to identify the labeled part. -The lobe at P is associated with

Which structures are related to Parkinson's disease?