Psych 3 Chapter 3
The precentral gyrus is essential for the ____.
control of fine movements
After damage to the ventral roots of the spinal cord, an individual will suffer what kind of loss?
control of the peripheral muscles in the affected body area
Which plane shows brain structures as they would be seen from the front?
coronal
A cross section of the spinal cord indicates that gray matter is ____.
densely packed with cell bodies and dendrites
Cell bodies of sensory neurons are located in the ____.
dorsal root ganglia
The limbic system is most related to ____.
emotional behaviors
The ventricles, central canal, and subarachnoid space are all ____.
filled with cerebrospinal fluid
Neurons in the prefrontal cortex ____ than neurons in other cortical areas.
have more dendritic spines
An impairment of eating, drinking, temperature regulation, or sexual behavior suggests possible damage to which brain structure?
hypothalamus
The parasympathetic nervous system has ____.
long preganglionic and short postganglionic axons
Breathing, heart rate, vomiting, salivation, coughing, and sneezing are all controlled by which structure?
medulla
Meningitis is an inflammation of the ____.
membranes surrounding the brain
In which area of the brain would one find the tectum, tegmentum, superior and inferior colliculi, and substantia nigra?
midbrain
Which part of the cerebral cortex is most important for the sense of touch?
parietal lobe
The "binding problem" is the issue of how we ____.
perceive visual, auditory and other aspects of a stimulus as a single object
Together, the somatic nervous system and the autonomic nervous system make up the ____ nervous system.
peripheral
A stereotaxic instrument would most likely be used for ____.
placing an electrode in the brain
The nuclei for most of the cranial nerves are located in the ____.
pons and medulla
What is the primary target area in the cortex for information regarding muscle-stretch and joint receptors?
primary somatosensory cortex
After damage to the dorsal roots of the spinal cord, an individual will suffer what kind of loss?
sensation from the affected body area
Which division of the nervous system consists of neurons that deliver messages from the sensory organs to the central nervous system?
somatic
The sweat glands, adrenal glands, and muscles that constrict blood vessels have input from only the ____ nervous system.
sympathetic
An electroencephalograph measures ____.
the average activity of the cells in a given region of the brain
Cortical blindness may result from the destruction of ____.
the occipital cortex
Prefrontal lobotomies were conducted in the United States in an attempt to ____.
treat severe psychiatric disorders
Computerized axial tomography creates an image from ____.
x-rays
Which method is dependent upon injecting a radioactive chemical into the blood to measure blood flow?
PET
Which statement is TRUE about laminae in the cerebral cortex?
The laminae vary in thickness in different areas
Damage to the basal ganglia would most likely result in ____.
a movement disorder
Sympathetic ganglia ____.
are closely linked and often act as a single system
What structure is composed of the medulla, pons, the midbrain, and certain central structures of the forebrain?
brain stem
If one structure is on the left side of the body and another is on the right, they are said to be ____ to each other.
contralateral