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The human body in health and illness: chapter 11: nervous system: spinal cord and peripheral nerves Exam study Guide. £8.78
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The human body in health and illness: chapter 11: nervous system: spinal cord and peripheral nerves Exam study Guide.
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©THEBRIGHT EXAM SOLUTIONS 2024/2025 ALL RIGHTS RESERVED. 1 The human body in health and illness: chapter 11: nervous system: spinal cord and peripheral nerves Exam study Guide. Spinal cord - Answerscontinuation of brain stem lumbar puncture - Answersa hollow needle is inserted into subarach...

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  • December 13, 2024
  • 5
  • 2024/2025
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  • the human body in health and illness chapter 11

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  • Human Body in Health & Disease

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©THEBRIGHT EXAM SOLUTIONS 2024/2025

ALL RIGHTS RESERVED.




The human body in health and illness:
chapter 11: nervous system: spinal cord and
peripheral nerves Exam study Guide.


Spinal cord - Answers✔continuation of brain stem

lumbar puncture - Answers✔a hollow needle is inserted into subarachnoid space between L3 &
L4, at about level of top of hip.

gray matter of spinal cord - Answers✔surrounds the central canal shaped like a butterfly

white matter of spinal cord - Answers✔This area surrounds the gray matter. It is composed of
both myelinated and unmyelinated axons.

ascending tracts - Answers✔it carries sensory info for touch, pressure, and pain from the spinal
cord and toward brain.

descending tracts - Answers✔motor tracts carry info from brain down the spinal cord, and
toward to the periphery

Decussation - Answers✔crossing over

quadriplegia - Answers✔spinal cord severed at neck region, the trunk and all four extremities are
paralyzed

paraplegia - Answers✔paralysis from the waist down

Major spinal cord tracts - Answers✔Ascending: spinothalamic, dorsal column, spinocerebellar
descending: pyramidal (corticospinal), extrapyramidal

spinothalamic tract - Answers✔A; temp, pressure, pain, light touch

dorsal column tract - Answers✔A; touch, deep pressure, vibration


1

, ©THEBRIGHT EXAM SOLUTIONS 2024/2025

ALL RIGHTS RESERVED.
spinocerebellar tracts - Answers✔A; proprioception

pyramidal (corticospinal) tracts - Answers✔D; skeletal muscle tone, voluntary muscle movement

extrapyramidal tract - Answers✔D; skeletal muscle activity, primarily involuntary reflexes and
movement (balance and posture)

sensory pathway - Answers✔spinal cord provides pathways for sensory information traveling
from the periphery to the brain

motor pathway - Answers✔the spinal cord provides pathways for motor info coming from the
brain going into the periphery

reflex pathway - Answers✔the spinal cord acts as a major reflex center

reflex - Answers✔an involuntary response to a stimulus

spinal reflexes - Answers✔reflexes mediated by spinal nerves

knee jerk reflex - Answers✔a variant of the stretch reflex in which stretching of the tendon
beneath the knee leads to an upward kick of the leg

reflex arc - Answers✔the nerve pathway involved in a reflex

reflex arc components - Answers✔sensory receptor, sensory neuron, integrating center, motor
neuron, effector organ

withdrawl reflex - Answers✔helps protect from injury

organ relexes - Answers✔regulate organ function

clinically significant reflexes - Answers✔-abdominal
-achilles tendon (ankle-jerk reflex)
-babinski
-patellar tendon (knee jerk reflex)

peripheral nervous system - Answers✔the sensory and motor neurons that connect the central
nervous system to the rest of the body

Nerves - Answers✔bundled axons that form neural "cables" connecting the central nervous
system with muscles, glands, and sense organs

Types of nerves - Answers✔sensory, motor, mixed

cranial nerves - Answers✔12 pairs of nerves that carry messages to and from the brain

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