Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 49, Problem 9TYK
Summary Introduction
Introduction: Cerebrum is the major part of the brain and is divided into the right and left cerebral hemispheres. The outer portion of cerebrum is known as the cerebral cortex, which is involved in learning, perception, and voluntary movement.
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Where are tertiary neurons found? a. extending between the posterior horn and anterior horn b. extending between the posterior horn and the brainstem c. extending between the thalamus and the primary somatosensory cortex d. extending between the primary motor cortex and brainstem
Which of the following would best describe the relationship between the medial geniculate nucleus of the thalamus and the lateral geniculate nucleus of the thalamus?
A) The medial geniculate nucleus is located inferior to the lateral geniculate nucleus.
B) The lateral geniculate nucleus is located closer to the midline of the brain compared to the medial geniculate nucleus.
C) The medial geniculate nucleus is located closer to the midline of the brain compared to the lateral geniculate nucleus.
D) The medial geniculate nucleus is located anterior to the lateral geniculate nucleus.
In which ways do cerebral nuclei interact with motor pathways? Select all that apply.
A. They receive impulses from the entire cerebral cortex.
B. They receive input from the hypothalamus.
C. They receive input from the limbic system.
D. They receive input from the corticospinal tract.
E. They receive input from the sensory areas.
Chapter 49 Solutions
Study Guide for Campbell Biology
Ch. 49 - The organization of an organisms nervous system...Ch. 49 - Prob. 2IQCh. 49 - Prob. 3IQCh. 49 - Identify the structures (a-g) in the following...Ch. 49 - Prob. 5IQCh. 49 - Action potentials are initiated more readily in...Ch. 49 - Prob. 1SYKCh. 49 - Prob. 1TYKCh. 49 - Prob. 2TYKCh. 49 - Prob. 3TYK
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- Which parts of the cerebral cortex are most likely to deteriorate in Alzheimer’s disease and other conditions?A. The areas that mature at the earliest ages, such as the primary visual cortex.B. The areas most distant from the heart, such as the parietal cortex.C. The areas responsible for emotional processing, such as the amygdala.D. The areas that mature at the latest age, such as the prefrontal cortex.arrow_forwardRefer to the direct pathway of the basal ganglia. What part of the frontal cortex is targeted by the direct pathway? What are the effects of the direct pathway on the thalamus and frontal cortex? Explain the circuitry of the direct pathway. Begin with the inputs and end with its effect on the cortex.arrow_forward(a) Name the brain nuclei that make up the basal nuclei (ganglia). (b) What is the basic function of the basal nuclei (ganglia)? (c) Which nucleus arches over the thalamus?arrow_forward
- Coordination of complex movements by the cerebellum involves all the following mechanisms, except :-a- sequencing of movementsb- decomposition of movementsc- damping of movementsd- timing of movementsarrow_forwardWhy are the different regions of the cerebellum involved in this complex motor learning? What might prevent someone from being able to learn to ride a bike? Are there disorders that might prevent this kind of motor function? Is there a correlation between the learning age and the stage of physical development?arrow_forward(a) In the spinothalamic pathway, where are the cell bodies of the first-order neurons located? Of the third-order neurons? (b) Trace the descending pathway that is concerned with skilled voluntary movements.arrow_forward
- Compare the structural similarities and differences between the cerebrum and cerebellum? Explain?arrow_forwardWhat part of the motor pathway inhibits inappropriate movements? a. occipital lobe b. basal nuclei c. primary motor cortex d. cerebellumarrow_forwardThe amygdala, septal area, and olfactory cortex provide input to which thalamic nuclei? a. Reticular nucleus b. Medial geniculate nucleus c. Ventral lateral nucleus d. Medial dorsal nucleusarrow_forward
- Give typing answer with explanation and conclusion The term used to describe the location of specific cognitive functions in one brain hemisphere moreso than in the other is: A. Transmission B. Hemispheric transference C. Lateralization D. Cross-referencingarrow_forwardWhere is the anterior (ventral) root located in the sequence of structures through which motor impulses pass as they descent from the brain and leve the spinal cord? A. Between anterior (ventral) gray horn and spinal nerve B. Between spinal nerve and posterior (dorsal) root ganglion C. Between anterior (ventral) gray horn and posterior (dorsal) gray horn D. Between white column and posterior (dorsal) gray hornarrow_forwardWhat does the medial corticospinal tract control? A. Bilateral movements of the trunk of the body B. Contralateral movements of the trunk of the body C. Bilateral movements of the arms, hands, and feet D. Contralateral movements of the arms, hands, and feetarrow_forward
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