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Psychology VCE Unit 3 Outcome 1 (SAC 1
Revision) Questions and Answers (100%
Correct Answers) Already Graded A+
Human Nervous System Ans: Highly complex, organised network of
specialised cells enabling the brain to receive info from inside and
outside the body, process this info for meaningful interpretation and
respond appropriately
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*Neurons are the building blocks of this
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CENTRAL NERVOUS SYSTEM (CNS) Ans: Comprises the brain and the
spinal cord.
Main Functions:
- process info received from the body's internal and external
environments
- activate appropriate responses
THE BRAIN Ans: an intricate network of cells that plays a vital role in
processing information received through neural pathways (tracts) from
the body and in directing actions within the body
THE SPINAL CORD Ans: is the long, thin bundle of nerve tissue that
extends from the base of the brain to the lower back.
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1. Receive sensory info from the body (via the peripheral nervous system)
and send these messages to the brain for processing.
2.Receive motor info from the brain and send it to relevant parts of the
body (via the peripheral nervous system) to control muscles, glands and
internal organs so that appropriate actions can be taken.
THE PERIPHERAL NERVOUS SYSTEM (PNS) Ans: is the entire network of
nerves located outside the CNS
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1.Carries info to the CNS from the body's muscles, organs and glands
(about the internal environment)and from the sensory organs (about the
external environment)
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2.Carries information from the CNS to the body's muscles, organs and
glands.
Divided into two subdivisions:
- The somatic nervous system
- The autonomic nervous system
THE SOMATIC NERVOUS SYSTEM (SNS) Ans: a network of nerves that carry
sensory info (afferent info) to the CNS and motor info (efferent info) from
the CNS.
- Allows us to receive info from our external environment
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- Enables voluntary movement
PNS - Somatic NS Ans: sensory info received at sensory receptor sites(EG:
photoreceptors in the retinas of the eye or touch receptors in the skin)
and carried along afferent (sensory) neural pathways via sensory
neurons to the CNS.
*Motor info is received from the CNS and is carried along efferent
(motor) neural pathwaysvia motor neurons to skeletal muscles to control
VOLUNTARY movement.
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THE AUTONOMIC NERVOUS SYSTEM (ANS) Ans: a subdivision of the PNS
that connects the CNS to the body's internal organs and glands,
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providing feedback to the brain about their activities.
BIOFEEDBACK Ans: the process by which an individual receives info
(feedback) about the state of a normally autonomic internal bodily
activity and uses thought processes to exert control over that activity
Sympathetic & parasympathetic NS Ans: Both are always active; one is
just usually dominant
SYMPATHETIC NERVOUS SYSTEM Ans: activates internal muscles, organs
and glands to prepare the body for vigorous activity or to deal with a
stressful or threatening situation.
*It's purpose is predominantly survival
*Stressor detected leads to immediate response
1
Psychology VCE Unit 3 Outcome 1 (SAC 1
Revision) Questions and Answers (100%
Correct Answers) Already Graded A+
Human Nervous System Ans: Highly complex, organised network of
specialised cells enabling the brain to receive info from inside and
outside the body, process this info for meaningful interpretation and
respond appropriately
© 2026 Assignment Expert
*Neurons are the building blocks of this
Guru01 - Stuvia
CENTRAL NERVOUS SYSTEM (CNS) Ans: Comprises the brain and the
spinal cord.
Main Functions:
- process info received from the body's internal and external
environments
- activate appropriate responses
THE BRAIN Ans: an intricate network of cells that plays a vital role in
processing information received through neural pathways (tracts) from
the body and in directing actions within the body
THE SPINAL CORD Ans: is the long, thin bundle of nerve tissue that
extends from the base of the brain to the lower back.
,For Expert help and assignment handling,
2
1. Receive sensory info from the body (via the peripheral nervous system)
and send these messages to the brain for processing.
2.Receive motor info from the brain and send it to relevant parts of the
body (via the peripheral nervous system) to control muscles, glands and
internal organs so that appropriate actions can be taken.
THE PERIPHERAL NERVOUS SYSTEM (PNS) Ans: is the entire network of
nerves located outside the CNS
© 2026 Assignment Expert
1.Carries info to the CNS from the body's muscles, organs and glands
(about the internal environment)and from the sensory organs (about the
external environment)
Guru01 - Stuvia
2.Carries information from the CNS to the body's muscles, organs and
glands.
Divided into two subdivisions:
- The somatic nervous system
- The autonomic nervous system
THE SOMATIC NERVOUS SYSTEM (SNS) Ans: a network of nerves that carry
sensory info (afferent info) to the CNS and motor info (efferent info) from
the CNS.
- Allows us to receive info from our external environment
, For Expert help and assignment handling,
3
- Enables voluntary movement
PNS - Somatic NS Ans: sensory info received at sensory receptor sites(EG:
photoreceptors in the retinas of the eye or touch receptors in the skin)
and carried along afferent (sensory) neural pathways via sensory
neurons to the CNS.
*Motor info is received from the CNS and is carried along efferent
(motor) neural pathwaysvia motor neurons to skeletal muscles to control
VOLUNTARY movement.
© 2026 Assignment Expert
THE AUTONOMIC NERVOUS SYSTEM (ANS) Ans: a subdivision of the PNS
that connects the CNS to the body's internal organs and glands,
Guru01 - Stuvia
providing feedback to the brain about their activities.
BIOFEEDBACK Ans: the process by which an individual receives info
(feedback) about the state of a normally autonomic internal bodily
activity and uses thought processes to exert control over that activity
Sympathetic & parasympathetic NS Ans: Both are always active; one is
just usually dominant
SYMPATHETIC NERVOUS SYSTEM Ans: activates internal muscles, organs
and glands to prepare the body for vigorous activity or to deal with a
stressful or threatening situation.
*It's purpose is predominantly survival
*Stressor detected leads to immediate response
