AP WORKBOOK CHAPTER 8 MULTIPLE CHOICE

The part of the brain that initiates voluntary movement is the

frontal lobe

Neurons that carry impulses from receptors to the CNS are called

sensory

The cranial nerve that decreases heart rate is the

vagus

The part of the brain that regulates heart rate and blood pressure is the

medulla

Cerebrospinal fluid is formed by

choroid plexuses

The gray matter on the surface of the cerebral hemispheres is called the

cerebral cortex

Neurons are electrically insulated by the presence of the

myelin sheath

The part of the brain that regulates body temperature and teh automnomic cervous system is the

hypothalamus

During depolarization of a neuron, sodium ions

rush into the cell

The spinal nerve root that is made of sensorty neurons is the

dorsal root

The part of the neuron that carries impulses away from the bell body is the

axon

at a synapse, a nerve impulse is carried by

a neurotransmitter

Sympathetic responses

decreased peristalsis

dilation of the bronchioles

dilation of the pupils

The lobes of the cerebral cortex that contain the areas for cutaneous sensation are the

parietal lobes

Within the spinal cord, teh cell bodies of motor neurons are contained within the

gray matterA

A reflex is

an involuntary response to a stimulus

Keeping the body upright is the purpose of

stretch reflexes

the two cerebral hemispheres are connected by the

corpus callosum

The correct description of the location of a layer of the meninges is

inner-pia matter

Which part of the brain regulates muscle tone and coordination

cerebellum

The cranial nerve for hearing and equilibrium is the

acoustic

Parasympathetic responses

constriction of the pupils

contraction of the urinary bladder

increased secretion of saliva

How many nerve pairs are there in the lumbar group

five

The descending tracts of the spinal cord are

made of white matter and carry impulses away from the brain

The cerebral cortex is made of the same parts of neurons as is the

gray matter of the spinal cord

Preventing prolonged contact with harmful stimuli is the function of

flexor reflexes

The blood-brain barrier is formed by anatomic features of the

brain capillaries and astrocytes

The myelin sheath of CNS neurons is made by

oligodendrocytes

The visual areas of the brain are in the

parietal lobes

The parts of the brain that regulate accessory movements(such as gestures when speaking) are the

temporal lobes