Animal Nervous System
Biology ⇒ Animal Biology
Animal Nervous System starts at 9 and continues till grade 12.
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See sample questions for grade 12
A patient is unable to form new memories after a brain injury. Which part of the brain is most likely damaged?
Describe the main difference between the central nervous system (CNS) and the peripheral nervous system (PNS).
Describe the main function of the spinal cord in the nervous system.
Describe the process of synaptic transmission.
Describe the role of neurotransmitters in the nervous system.
A patient is unable to form new memories after a brain injury. Which part of the brain is most likely damaged?
A researcher records the following changes in membrane potential of a neuron: rapid depolarization, followed by repolarization and a brief hyperpolarization. What is the physiological basis for the hyperpolarization phase?
A toxin blocks the reuptake of neurotransmitters at the synaptic cleft. Predict and explain the effect this would have on synaptic transmission.
Which ion is primarily responsible for depolarization during an action potential?
(1) Sodium (Na⁺)
(2) Potassium (K⁺)
(3) Calcium (Ca²⁺)
(4) Chloride (Cl⁻)
Which of the following animals has a highly developed brain relative to its body size?
(1) Fish
(2) Bird
(3) Octopus
(4) Starfish
Which of the following animals has a nerve net instead of a centralized nervous system?
(1) Earthworm
(2) Hydra
(3) Frog
(4) Bird
Which of the following best describes a reflex arc?
(1) A voluntary response to a stimulus
(2) A direct pathway from sensory neuron to motor neuron
(3) A process involving only the brain
(4) A hormonal response to a stimulus
Fill in the blank: The __________ is a protective membrane that surrounds the brain and spinal cord.
Fill in the blank: The __________ is the largest part of the human brain and is responsible for higher cognitive functions.
Fill in the blank: The __________ is the part of the brain that controls balance and coordination.
Fill in the blank: The __________ nervous system is responsible for involuntary control of internal organs.
True or False: Action potentials travel faster in myelinated axons than in unmyelinated axons.
True or False: All animals have a nervous system.
True or False: All neurons have the same structure and function.
True or False: Invertebrates such as insects have a ventral nerve cord.
