Chapter 12
Which part of a neuron transmits an electrical signal to a target cell?
Axon
Which lobe of the cerebral cortex is responsible for generating motor commands?
Frontal
Cranial nerve lX is known as
Glossopharyngeal
What is the name for a bundle of axons within a nerve?
Fascicle
What type of glial cell provides myelin for the axons in a tract?
Oliogodendrocyte
What region of the diencephalon coordinates homeostasis?
Hypothalamus
Which nerve is responsible for taste, as well as salivation, in the anterior oral cavity?
Facial
What does the trochlear nerve innervate?
Superior oblique eye muscle
What. ion enters a neuron causing depolarization of the cell membrane?
Sodium
What region of the spinal cord contain motor neurons that direct the movement of skeletal muscles?
Anterior horn
Which major section of the neurological exam is most likely to reveal damage to the cerebellum?
coordination exam
What type of receptors are lamellate corpuscles?
Mechanoreceptors
How much of a change in the membrane potential is necessary for the summation of postsynaptic potentials to result in an action potential being generated?
+15mV
What blood vessels enters the cranium to supply the brain with fresh, oxygenated blood?
Internal carotid artery
Which nerve is responsible for controlling the muscles that result in the gag reflex?
Vagus
A composure of axons from the spinal nerves C1 through C5 that branch into nerves in the posterior neck and head is known as
Cervical plexus
What neurotransmitter is associated with inhibition exclusively?
GABA
Which portion of the ventricular system is found within the diencephalon?
Third ventricle
What does the abducens nerve innervate?
Which layer of the meninges surrounds and supports the sinuses that form the route through which blood drains from the CNS?
Dura Mater