PSYCHOLOGY 1.1–1.5: NERVOUS SYSTEM, BRAIN, AND
SLEEP | VERIFIED QUESTIONS AND ANSWERS | 100%
ACCURATE, A+ GRADED, GUARANTEED SUCCESS!
Course Code:
Course Title:
Programme:
Academic Year: 2026/2027.
Duration: 2 Hours.
Total Marks: 70%.
Candidate Instructions:
1) Write your Registration Number on every answer booklet used.
2) Answer ALL questions in Section A and ANY TWO (2) questions in Section B.
3) Read each question carefully before answering.
4) Begin each question on a new page.
5) The marks for each question are indicated in brackets.
6) This paper consists of several printed pages, including this page.
7) Ensure your copy is complete before the examination begins.
8) Unauthorized materials and communication with other candidates are not permitted.
Turn Over.
APPHIA – Crafted with Care and Precision for Academic Excellence.
1
, Environment Answer: All external influences on behavior, from prenatal nutrition to social
surroundings.
Eugenics Answer: The (discredited) idea of improving the human race by controlling
reproduction.
Evolutionary Psychology Answer: The study of how natural selection shapes behavior and
mental processes.
Heredity Answer: The passing of traits from parents to offspring through genes.
Natural Selection Answer: The principle that traits aiding survival and reproduction are passed
to future generations.
Autonomic Nervous System (ANS) Answer: Part of the PNS that controls involuntary body
functions (breathing, heartbeat, digestion).
Brain Answer: The control center of the nervous system that processes information.
Central Nervous System (CNS) Answer: Made up of the brain and spinal cord.
Parasympathetic Nervous System Answer: Part of ANS that calms the body ("rest and digest").
Peripheral Nervous System (PNS) Answer: Nerves outside the CNS that connect it to the body.
Somatic Nervous System Answer: Controls voluntary movement of skeletal muscles.
Spinal Cord Answer: Pathway for messages between the brain and body; controls reflexes.
Sympathetic Nervous System Answer: Part of ANS that arouses the body in stress ("fight or
flight").
Glial Cell Answer: Support cell that nourishes and protects neurons.
Interneuron Answer: Neurons that process info within the CNS.
Motor Neuron Answer: Sends messages from CNS to muscles/glands.
Myelin Answer: Fatty coating that speeds up neural impulses.
Neurotransmitter Answer: Chemical messenger between neurons.
Reflex Arc Answer: Automatic response to a stimulus.
Sensory Neuron Answer: Sends info from sense organs to CNS.
Synapse Answer: Gap between neurons where neurotransmitters are released.
Acetylcholine (ACh) Answer: Enables muscle action, learning, and memory.
Action Potential Answer: Electrical signal that travels down the axon.
Adrenaline (Epinephrine) Answer: Increases alertness and arousal.
All-or-Nothing Principle Answer: Neurons fire fully or not at all.
APPHIA – Crafted with Care and Precision for Academic Excellence.
2
SLEEP | VERIFIED QUESTIONS AND ANSWERS | 100%
ACCURATE, A+ GRADED, GUARANTEED SUCCESS!
Course Code:
Course Title:
Programme:
Academic Year: 2026/2027.
Duration: 2 Hours.
Total Marks: 70%.
Candidate Instructions:
1) Write your Registration Number on every answer booklet used.
2) Answer ALL questions in Section A and ANY TWO (2) questions in Section B.
3) Read each question carefully before answering.
4) Begin each question on a new page.
5) The marks for each question are indicated in brackets.
6) This paper consists of several printed pages, including this page.
7) Ensure your copy is complete before the examination begins.
8) Unauthorized materials and communication with other candidates are not permitted.
Turn Over.
APPHIA – Crafted with Care and Precision for Academic Excellence.
1
, Environment Answer: All external influences on behavior, from prenatal nutrition to social
surroundings.
Eugenics Answer: The (discredited) idea of improving the human race by controlling
reproduction.
Evolutionary Psychology Answer: The study of how natural selection shapes behavior and
mental processes.
Heredity Answer: The passing of traits from parents to offspring through genes.
Natural Selection Answer: The principle that traits aiding survival and reproduction are passed
to future generations.
Autonomic Nervous System (ANS) Answer: Part of the PNS that controls involuntary body
functions (breathing, heartbeat, digestion).
Brain Answer: The control center of the nervous system that processes information.
Central Nervous System (CNS) Answer: Made up of the brain and spinal cord.
Parasympathetic Nervous System Answer: Part of ANS that calms the body ("rest and digest").
Peripheral Nervous System (PNS) Answer: Nerves outside the CNS that connect it to the body.
Somatic Nervous System Answer: Controls voluntary movement of skeletal muscles.
Spinal Cord Answer: Pathway for messages between the brain and body; controls reflexes.
Sympathetic Nervous System Answer: Part of ANS that arouses the body in stress ("fight or
flight").
Glial Cell Answer: Support cell that nourishes and protects neurons.
Interneuron Answer: Neurons that process info within the CNS.
Motor Neuron Answer: Sends messages from CNS to muscles/glands.
Myelin Answer: Fatty coating that speeds up neural impulses.
Neurotransmitter Answer: Chemical messenger between neurons.
Reflex Arc Answer: Automatic response to a stimulus.
Sensory Neuron Answer: Sends info from sense organs to CNS.
Synapse Answer: Gap between neurons where neurotransmitters are released.
Acetylcholine (ACh) Answer: Enables muscle action, learning, and memory.
Action Potential Answer: Electrical signal that travels down the axon.
Adrenaline (Epinephrine) Answer: Increases alertness and arousal.
All-or-Nothing Principle Answer: Neurons fire fully or not at all.
APPHIA – Crafted with Care and Precision for Academic Excellence.
2
