Chapter 12

Short-term memory and long-term memory are stored in the same location in the brain.

False

Which of the following parts of the brain is the homeostatic control center, regulating such features as body temperature, thirst, and hunger?

Hypothalamus

Which of the following is NOT a characteristic of the sympathetic nervous system?

It is composed entirely of sensory neurons.

Several students are peacefully sleeping during a statistics class. The decreased heart rate associated with their slumber is a result of the action of the:

Parasympathetic division of the autonomic nervous system.

Neurotransmitters

diffuse across a synapse and bind to receptors on the plasma membrane of the postsynapic membrane

Which of the following is allowed to pass through the blood-brain barrier into the cerebrospinal fluid and the brain?

glucose

How are ions distributed when an axon is NOT conducting a nerve impulse?

more sodium outside the axon and more potassium inside the axon

Which of the following types of neurons conducts nerve impulses FROM receptors (which respond to various stimuli) TO the central nervous system?

sensory

Which of the following mechanisms maintains a gradient across a neuron's membrane?

sodium-potassium pump

In most cases, a simple spinal reflex does not involve:

the brain

Transmission of nerve impulses from one axon to another neuron or to a muscle cell involves

All of the above

Insufficient production of acetylcholine in the synapses of the brain, abnormal tangled neurons, and large deposits of beta amyloid are problems associated with

Alzheimer's disease

Which of the following is TRUE regarding the spinal cord and CSF?

The neurons of the spinal cord and the CSF are protected by the blood- brain barrier.

Which of the following is NOT true regarding the speed of an action potential?

The smaller the diameter of an axon, the faster the speed of the action potential.

During brain surgery, the surgeon passes an instrument through the dura mater. Which of the following does he pass through next?

arachnoid

Which of the following parts of the brain is used to control skilled activities such as riding a bicycle?

cerebellum

In which part of the brain are the primary somatosensory area and primary motor area located?

cerebral cortex

Which of the following is the most highly developed part of the brain - the part that is, relatively, substantially larger in humans, and is associated with language and conscious thought?

cerebrum

Which of the following are NOT a part of the forebrain?

pons

Oligodendrocytes are similar to Schwann cells in that they

produce a protective sheath of myelin

The increase in heart rate and the decrease in digestive activity associated with the fight or flight response is a result of the action of the

sympathetic division of the autonomic nervous system