Science Department
Adv.Biology Revision Sheet
4th Quarter
Academic Year 2022 /2023
Name ______________________
Gr 12 (
)
**This not the only Resources for biology**
exam
1
Q1 -Central Vs. Peripheral:
The brain and the spinal cord are a part of the CENTRAL_____ nervous
system. The brain is responsible for ____receiving____ inputs and
initiating responses. The spinal cord is responsible for sending motor
and sensory commands ,__coordinates reflexes _____ and serves as a
pathway between brain and peripheral nervous system.
Q2-How it Works:
Words Bank:
Brain
Motor Neurons
Response
Sensory Neuron
Spinal Cord
Stimulus
1 Stimulus 2 sensory neuron 3 spinal cord 4 Brain
2
5 motor neuron 6 response
Q3
A Resting state potential
B Threshold
C Action potential
D Depolarization ( Temporary reversal in electrical charges)
E Repolarization ( restoring a positive charge outside the cell)
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Q4: Infer which of the following actions is sympathetic or parasympathetic then
write it in the provided space.
12345-
1. Parasympathetic
2. Sympathetic
3. Sympathetic
4. Parasympathetic
5. Sympathetic
4
Q5Match the term with the definition
A-Action Potential
B-Threshold
C-Nodes
( B
) The minimum stimulus to cause an action
( A
)Change in sodium potassium concentration in the
neuron
D-Neurotransmitters
(
C
E-synapse.
(
F )Movement from area of high concentration to low
F-Diffusion
concentration.
G-Hypothalamus
( O
H-Sensory neuron
( H ) send impulses from receptors in the skin and sense
I-Pons
organs to the brain and spinal cord.
O-Interneurons
( D
K-Medulla oblongata
(
) increase the speed of the impulse along the axon.
) carry impulses to motor neurons.
) chemicals that diffuse across a synapse
E
) small gap between the axon of one neuron and
the dendrite of another neuron
( K
) relays signals between the brain and the spinal
cord.
( G
) regulates body temperature, thirst,
B,A , C , F , O , H , D , E , K , G
5
Q6
CEREBRUM
Cerebellum
Spinal cord
ALL THE BEST
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