1
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EXSC 224 Exam 1 (Ray) Questions and
Answers (100% Correct Answers) Already
Graded A+
Sensory Input [ ANS: ] Information gathered by sensory receptors
about internal and external changes
Integration [ ANS: ] To process and interpret sensory input and
decide if action is needed
Motor Output [ ANS: ] Activation of effector organs (muscles and
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glands) produces a response
Central Nervous System [ ANS: ] Brain and spinal cord, which
occupy the dorsal body cavity.
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-Control center of the nervous system.
-Interprets sensory inputs.
-Dictates motor output based on reflexes, current conditions, and
past experience.
Peripheral Nervous System [ ANS: ] Part of the nervous system
outside the CNS.
-Consist mainly of NERVES that extend from the brain and spinal
cord, and ganglia.
-SPINAL NERVES carry impulses to and from the spinal cord, and
CRANIAL NERVES carry impulses to and from the brain.
****These peripheral nerves serve as communication lines that link
all part of the body to the CNS.
PNS 2 Functional Subdivisions [ ANS: ] 1) Sensory afferent division
2) Motor efferent division
, 2
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Sensory or afferent division [ ANS: ] ****Carrying toward
Consist of nerve fibers (axons) that convey impulses to the central
nervous system from sensory receptors located throughout the
body.
Motor or efferent division [ ANS: ] ****Carrying away
The PNS transmits impulses from the CNS to effector organs, which
are the muscles and glands. These impulses activate muscles to
contract and glands to secrete. In other words, they effect a
motor response.
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Somatic nervous system [ ANS: ] Composed of somatic motor
nerve fibers that conduct impulses from the CNS to skeletal
muscles.
Guru01 - Stuvia
****Often referred to as the voluntary nervous system (it allows us
to consciously control our skeletal muscles)
Autonomic nervous system [ ANS: ] Consist of visceral motor nerve
fibers that regulate the activity of smooth muscles, cardiac
muscle, and glands.
****Often referred to as the involuntary nervous system (it controls
things like heart rate and movement of food through the digestive
tract)
Sympathetic division [ ANS: ] Mobilizes body systems during
activity.
Parasympathetic division [ ANS: ] Conserves energy and promotes
house-keeping functions during rest.
Astrocytes (CNS) [ ANS: ] ****Star cells
-Most abundant and versatile glial cells.
-Cling to neurons and their synaptic endings, and cover nearby
capillaries.
For Expert help and assignment solutions, +254707240657
EXSC 224 Exam 1 (Ray) Questions and
Answers (100% Correct Answers) Already
Graded A+
Sensory Input [ ANS: ] Information gathered by sensory receptors
about internal and external changes
Integration [ ANS: ] To process and interpret sensory input and
decide if action is needed
Motor Output [ ANS: ] Activation of effector organs (muscles and
© 2025 Assignment Expert
glands) produces a response
Central Nervous System [ ANS: ] Brain and spinal cord, which
occupy the dorsal body cavity.
Guru01 - Stuvia
-Control center of the nervous system.
-Interprets sensory inputs.
-Dictates motor output based on reflexes, current conditions, and
past experience.
Peripheral Nervous System [ ANS: ] Part of the nervous system
outside the CNS.
-Consist mainly of NERVES that extend from the brain and spinal
cord, and ganglia.
-SPINAL NERVES carry impulses to and from the spinal cord, and
CRANIAL NERVES carry impulses to and from the brain.
****These peripheral nerves serve as communication lines that link
all part of the body to the CNS.
PNS 2 Functional Subdivisions [ ANS: ] 1) Sensory afferent division
2) Motor efferent division
, 2
For Expert help and assignment solutions, +254707240657
Sensory or afferent division [ ANS: ] ****Carrying toward
Consist of nerve fibers (axons) that convey impulses to the central
nervous system from sensory receptors located throughout the
body.
Motor or efferent division [ ANS: ] ****Carrying away
The PNS transmits impulses from the CNS to effector organs, which
are the muscles and glands. These impulses activate muscles to
contract and glands to secrete. In other words, they effect a
motor response.
© 2025 Assignment Expert
Somatic nervous system [ ANS: ] Composed of somatic motor
nerve fibers that conduct impulses from the CNS to skeletal
muscles.
Guru01 - Stuvia
****Often referred to as the voluntary nervous system (it allows us
to consciously control our skeletal muscles)
Autonomic nervous system [ ANS: ] Consist of visceral motor nerve
fibers that regulate the activity of smooth muscles, cardiac
muscle, and glands.
****Often referred to as the involuntary nervous system (it controls
things like heart rate and movement of food through the digestive
tract)
Sympathetic division [ ANS: ] Mobilizes body systems during
activity.
Parasympathetic division [ ANS: ] Conserves energy and promotes
house-keeping functions during rest.
Astrocytes (CNS) [ ANS: ] ****Star cells
-Most abundant and versatile glial cells.
-Cling to neurons and their synaptic endings, and cover nearby
capillaries.
