Ch. 14 The Brain and Cranial Nerves

Martini - Fundamentals of Anatomy & Physiology 11th Edition

Martini, Nath, Bartholomew11th EditionFundamentals of Anatomy & PhysiologyISBN: 9780136874089Non è quello che usi tu?Cambia libro di testo

Martini, Nath, Bartholomew 11th Edition

Ch. 14 The Brain and Cranial Nerves

Problema 12

Capitolo 14, Problema 12

Coordination of learned movement patterns at the subconscious level is performed by
(a) The cerebellum
(b) The substantia nigra
(c) Association fibers
(d) The hypothalamus

Guida verificata passo dopo passo

Step 1: Understand the question is asking about the brain structure responsible for coordinating learned movement patterns at a subconscious level.

Step 2: Recall that the cerebellum is primarily involved in the coordination of voluntary movements, balance, and motor learning, often operating subconsciously to fine-tune motor activity.

Step 3: Recognize that the substantia nigra is part of the basal ganglia and plays a role in movement initiation and reward, but is not the main coordinator of learned movement patterns.

Step 4: Note that association fibers are bundles of nerve fibers connecting different parts of the cerebral cortex and do not directly coordinate movement.

Step 5: Understand that the hypothalamus mainly regulates autonomic functions and homeostasis, not learned motor coordination.

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Cerebellum

The cerebellum is a brain structure responsible for coordinating voluntary movements, balance, and posture. It integrates sensory input and fine-tunes motor activity, allowing smooth and precise execution of learned movement patterns at a subconscious level.

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Major Regions of the Brain

Substantia Nigra

The substantia nigra is part of the basal ganglia involved in movement regulation and reward. It produces dopamine, which influences motor control, but it is not primarily responsible for coordinating learned movement patterns subconsciously.

Association Fibers

Association fibers are bundles of nerve fibers that connect different regions within the same cerebral hemisphere. They facilitate communication between cortical areas but do not directly coordinate subconscious motor patterns.

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Protein Fibers

Pratica correlata

Domanda del libro di testo

List the names of the 12 pairs of cranial nerves. (Hint: use the mnemonic device 'Oh, Once One Takes The Anatomy Final, Very Good Vacations Are Heavenly.' )

1950

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Domanda del libro di testo

The primary purpose of the blood brain barrier (BBB) is to (a) provide the brain with oxygenated blood, (b) drain venous blood by the internal jugular veins, (c) isolate neural tissue in the CNS from the general circulation, (d) do all of these.

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The centers in the pons that modify the activity of the respiratory rhythmicity centers in the medulla oblongata are the:

(a) Apneustic and pneumotaxic centers

(b) Inferior and superior peduncles

(d) Gracile nucleus and cuneate nucleus

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Domanda del libro di testo

The two cerebral hemispheres are functionally different, even though anatomically they appear the same.

(a) True

(b) False

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