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A&P Chapter 12 The Central Nervous System

STUDY
PLAY
Which of the following is true of the cerebral hemispheres of the human brain?
a) Nearly the entire surface of the cerebral hemispheres is marked by elevated ridges called sulci.
b) Nearly the entire surface of the cerebral hemispheres is marked by shallow grooves called gyri.
c) The longitudinal fissure separates the cerebral hemispheres from the cerebellum.
d) The cerebral hemispheres account for about 83% of total brain mass.
d) The cerebral hemispheres account for about 83% of total brain mass.
Which part of the brain is the "executive suite" for all brain activity?
cerebral cortex
Patients who have lesions involving Broca's area __________.
can understand language, but have difficulty speaking
(Patients with lesions involving Broca's area can understand language but have difficulty speaking (and sometimes cannot write or type or use sign language) - this disorder is called expressive, or Broca's, aphasia. On the other hand, patients with lesions involving Wernicke's area are able to speak but produce a type of nonsense often referred to as "word salad" - this disorder is called receptive, or Wernicke's, aphasia. These patients also have great difficulty understanding language.)
Which of the following are motor areas of the cerebral cortex that lie in the posterior part of the frontal lobes and control voluntary movement?
a) Broca's area; posterior association area; auditory areas; visual areas
b) primary motor cortex; premotor cortex; prefrontal cortex; gustatory cortex
c) primary somatosensory cortex; somatosensory association cortex; visual areas
d) primary motor cortex; premotor cortex; Broca's area; frontal eye field
d) primary motor cortex; premotor cortex; Broca's area; frontal eye field
At age 79, Mrs. X is diagnosed with a disorder that severely impairs her logical judgment. Medical imaging techniques show that this has been most likely caused by brain damage in a ______.
frontal lobe.
(The frontal lobe has areas that control voluntary motor functions, mood, smell, and social judgment.)
Which part of the brain is considered the "gateway" to the cerebral cortex?
the thalamus
Which meninx is a delicate connective tissue membrane that clings tightly to the brain like cellophane wrap following its every convolution?
pia mater
Which area of the brain controls voluntary movement of the eyes?
frontal eye field
Which fissure separates the cerebral hemispheres?
longitudinal fissure
Which part of the brain stem houses the reflex centers for respiration and cardiovascular functioning?
medulla oblongata
Which type of white matter fiber tract connects the two cerebral hemispheres?
commissures
Ridges of tissue on the surface of the cerebral hemispheres are called ________.
gyri