Human Anatomy (9th Edition)
9th Edition
ISBN: 9780134320762
Author: Frederic H. Martini, Robert B. Tallitsch, Judi L. Nath
Publisher: PEARSON
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Chapter 16, Problem 2RFT
Summary Introduction
Introduction:
The brain and the spinal cord are classified as parts of the CNS (central nervous system). These two structures contain billions of neurons along with their synapses. The brain, in contrast to the spinal cord, contains more synapses, which are quite adaptable in terms of signal processing.
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(b) (1) Explain the term reflex action.
(ii) Expand the following biological
abbreviations:
(1) DNA (2) AIDS.
(iii) State whether the following actions are
'voluntary action, simple reflex or conditioned
reflex':
(1) Blinking
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(3) Playing on the keyboard
(4) Salivating when food is put in the mouth.
The cerebral cortex does not play a major role in (A) short-term memory. (B) long-term memory. (C) circadian rhythm. (D) breath holding.
Which of the following is NOT true of the nervous system?(a) Consists of central and peripheral systems(b) Central nervous system is composed of brain and spinalcord(c) Ganglia are part of brain(d) Meninges are membranes that cover brain and spinalcord(e) Normally free of microbes
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- Which of the following structures or regions is incorrectly pairedwith its function?(A) limbic system—motor control of speech(B) medulla oblongata—homeostatic control(C) cerebellum—coordination of movement and balance(D) amygdala—emotional memoryarrow_forward. Injury localized to the hypothalamus would most likely disrupt(A) regulation of body temperature.(B) short-term memory.(C) executive functions, such as decision making.(D) sorting of sensory information.arrow_forwardA monosynaptic reflex is an example of (a) a convergent circuit, (b) parallel processing, (c) serial processing, (d) a reverberating circuit.arrow_forward
- Which statement is true regarding a spinal (peripheral) nerve? A) they can contain afferent axons only B) each nerve ending contains a single axon C)They innervate all regions of the body, including the head D) there are 31 pairs of spinal nervesarrow_forwardWhich of the following statements is true? a) The spinal cord terminates at L5, just above the sacrum b) White matter is found in the dorsal horn and ventral horn of the spinal cord c) White matter in the spinal cord is arranged into "columns" d) The cauda equine can be found in the thoracic spinearrow_forwardWhich of the blood vessels below supplies arterial blood to the thalamus and the hypothalamus. (A) posterior inferior cerebellar artery (B) basilar artery (C) posterior cerebral artery (D) middle cerebral artery (E) anterior cerebral arteryarrow_forward
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