[APK2100C] Chapter 12 Exam Study Guide.

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11/16/2024 10:16 AM


[APK2100C] Chapter 12 Exam Study Guide.


The Nervous System [Overview] - answer✔- Master controlling and communication system of
the body
- Responsible for actions like muscle contractions or reflexes

Describe the signals produced by the nervous system. - answer✔Signals are rapid/specific and
cause IMMEDIATE responses by the body.
True or False: Rapid signals from the nervous system cause immediate responses by the body. -
answer✔True

Endocrine System [Basic Function] - answer✔- The body's 'slow' chemical communication
system
- Communicates by chemical messages (HORMONES) that are secreted into blood
- Involves glands for secretion

Nervous System [Basic Function] - answer✔- The body's 'rapid' communication system
- Employs electrical AND chemical means to send messages from cell to cell
- Involves nerves and neurons for transmission

3 Overlapping Functions of the Nervous System - answer✔(1) Sensory Input
(2) Integration
(3) Motor Output

Sensory Input [NS Function] - answer✔Sensory receptors monitor changes inside and outside of
body

Integration [NS Function] - answer✔CNS receives and interprets sensory input and makes a
decision for action

Motor Output [NS Function] - answer✔Motor neurons elicit responses by activating effector
organs

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11/16/2024 10:16 AM

2 Main Divisions of the Nervous System - answer✔(1) Central Nervous System (CNS)
(2) Peripheral Nervous System (PNS)

[Structure] Central Nervous System - answer✔Brain and spinal cord

[Function] Central Nervous System - answer✔Integrative and control centers

[Structure] Peripheral Nervous System - answer✔Cranial nerves and spinal nerves


*Everything else EXCEPT for the brain and spinal cord

[Function] Peripheral Nervous System - answer✔Communication lines between the CNS and
the rest of the body

2 Divisions of the PNS - answer✔(1) Sensory (afferent)
(2) Motor (efferent)

[Structure] Sensory (AFFERENT) Division of the PNS - answer✔Somatic (skin) and visceral
(hollow organ lining) sensory nerve fibers

[Function] Sensory (AFFERENT) Division of the PNS - answer✔Conducts impulses from
*RECEPTORS to CNS*

[Structure] Motor (EFFERENT) Division of the PNS - answer✔Motor nerve fibers

[Function] Motor (EFFERENT) Division of the PNS - answer✔Conducts impulses from *CNS to
EFFECTORS*, such as muscles and glands
Sensory division is [afferent/efferent], while motor division is [afferent/efferent]. -
answer✔Sensory Division: AFFERENT
Motor Division: EFFERENT
Sensory division conducts impulses from _________ to _________, while motor division does it
from _________ to _________. - answer✔Sensory Division: From RECEPTORS to CNS
Motor Division: From CNS to EFFECTORS

2 Subdivisions of the PNS Motor Division - answer✔(1) Somatic
(2) Automatic (ANS)

[Structure] Somatic Nervous System - answer✔Somatic motor (*VOLUNTARY*)

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