Domanda del libro di testo
Fiber tracts that allow neurons within the same cerebral hemisphere to communicate are:
a. Association fibers
b. Commissures
c. Projection fibers
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Ch. 12 The Central Nervous System
Marieb, Hoehn11th EditionHuman Anatomy & PhysiologyISBN: 9780136874034
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TOC.tableOfContents
- Ch. 1 The Human Body: An Orientation24
- Ch. 2 Chemistry Comes Alive25
- Ch. 3 Cells: The Living Units21
- Ch. 4 Tissue: The Living Fabric20
- Ch. 5 The Integumentary System11
- Ch. 6 Bones and Skeletal Tissues19
- Ch. 7 The Skeleton14
- Ch. 8 Joints7
- Ch. 9 Muscles and Muscle Tissue26
- Ch. 10 The Muscular System26
- Ch. 11 Fundamentals of the Nervous System and Nervous Tissue19
- Ch. 12 The Central Nervous System26
- Ch. 13 The Peripheral Nervous System and Reflex Activity32
- Ch. 14 The Autonomic Nervous System19
- Ch. 15 The Special Senses26
- Ch. 16 The Endocrine System23
- Ch. 17 Blood25
- Ch. 18 The Cardiovascular System: The Heart24
- Ch. 19 The Cardiovascular System: Blood Vessels27
- Ch. 20 The Lymphatic System and Lymphoid Organs and Tissues14
- Ch. 21 The Immune System: Innate and Adaptive Body Defenses27
- Ch. 22 The Respiratory System21
- Ch. 23 The Digestive System31
- Ch. 24 Nutrition, Metabolism, and Energy Balance26
- Ch. 25 The Urinary System26
- Ch. 26 Fluid, Electrolyte, and Acid-Base Balance24
- Ch. 27 The Reproductive System24
- Ch. 28 Pregnancy and Human Development25
- Ch. 29 Heredity11
Marieb, Hoehn11th EditionHuman Anatomy & PhysiologyISBN: 9780136874034Non è quello che usi tu?Cambia libro di testo
Capitolo 12, Problema 8
a. What is the function of the basal nuclei?
b. Which basal nuclei form the striatum?
c. Which arches over the diencephalon?
Guida verificata passo dopo passo1
For part (a), understand that the basal nuclei (also called basal ganglia) are a group of subcortical nuclei in the brain involved primarily in regulating voluntary motor movements, procedural learning, and routine behaviors or habits. Their function includes modulating movement initiation and coordination.
For part (b), identify the specific basal nuclei that together form the striatum. The striatum is composed of the caudate nucleus and the putamen. Recognize that these two structures are functionally and anatomically linked as the input center of the basal nuclei.
For part (c), determine which brain structure arches over the diencephalon. The answer is the corpus callosum, a large bundle of nerve fibers that connects the two cerebral hemispheres and arches over the diencephalon, facilitating interhemispheric communication.
Summarize the answers by clearly linking each part of the question to the relevant anatomical structures and their functions: (a) basal nuclei function in motor control, (b) striatum consists of caudate nucleus and putamen, and (c) corpus callosum arches over the diencephalon.
Review the anatomical locations and relationships of these structures in the brain to reinforce understanding, using diagrams or brain models if available.
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Function of the Basal Nuclei
The basal nuclei are groups of neurons in the brain that regulate voluntary motor control, procedural learning, and routine behaviors. They help coordinate movement by modulating signals from the cerebral cortex to ensure smooth and purposeful actions. Dysfunction in these nuclei can lead to movement disorders like Parkinson's disease.
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3:26
Basal Nuclei
Striatum Composition
The striatum is a major component of the basal nuclei, primarily formed by the caudate nucleus and the putamen. These structures receive input from the cerebral cortex and are involved in motor and cognitive functions, acting as the main input center for the basal nuclei circuitry.
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Percorso guidato
7:49Composition of Blood
Structure Arching Over the Diencephalon
The structure that arches over the diencephalon is the corpus callosum, a thick band of nerve fibers connecting the two cerebral hemispheres. It facilitates communication between the hemispheres, integrating sensory, motor, and cognitive information across the brain.
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4:16Structure of the Eyeball Example 1
Pratica correlata
Domanda del libro di testo
A professor unexpectedly blew a loud horn in his anatomy and physiology class. The students looked up, startled. The reflexive movements of their eyes were mediated by the:
a. Cerebral cortex
b. Inferior olives
c. Raphe nuclei
d. Superior colliculi
e. Nucleus gracilis
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Domanda del libro di testo
What constitutes the blood brain barrier?
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Domanda del libro di testo
List four ways in which the CNS is protected.
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Domanda del libro di testo
A patient has suffered a cerebral hemorrhage that has caused dysfunction of the precentral gyrus of his right cerebral cortex. As a result:
a. He cannot voluntarily move his left arm or leg.
b. He feels no sensation on the left side of his body.
c. He feels no sensation on his right side.
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Domanda del libro di testo
Destruction of the ventral horn cells of the spinal cord results in loss of
a. Integrating impulses
b. Sensory impulses
c. Voluntary motor impulses
d. All of these
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