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  4. Neural Control and Coordination Chapter-Wise Test 2

Neural Control and Coordination Chapter-Wise Test 2

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which part of the neuron receives signals from other neurons?

Axon
Dendrites
Cell body
Synaptic knob
2

Dendrites receive signals from other neurons and transmit them to the cell body.

Which part of the neuron receives signals from other neurons?

Axon
Dendrites
Cell body
Myelin sheath
2

Dendrites receive incoming signals from other neurons and transmit them to the cell body.

Which part of a neuron contains the nucleus and most of the cell's organelles?

Axon
Dendrite
Cell body
Synapse
3

The cell body (or soma) contains the nucleus and organelles, supporting neuron function.

Which type of glial cell is responsible for forming the myelin sheath in the central nervous system?

Schwann cells
Oligodendrocytes
Microglia
Astrocytes
2

Oligodendrocytes form the myelin sheath around axons in the central nervous system (CNS).

Which structure forms the main communication link between the left and right cerebral hemispheres?

Cerebellum
Corpus callosum
Medulla oblongata
Thalamus
2

The corpus callosum is a bundle of nerve fibers that connects the two cerebral hemispheres, allowing communication between them.

What is the function of the corpus callosum?

Regulates emotions
Connects the two cerebral hemispheres
Controls balance and posture
Relays sensory signals to the spinal cord
2

The corpus callosum is a bundle of nerve fibers that connects the left and right cerebral hemispheres, allowing communication between them.

Which of the following is responsible for maintaining the resting membrane potential in neurons?

Voltage-gated calcium channels
Sodium-potassium pump
Myelin sheath
Neurotransmitters
2

The sodium-potassium pump maintains the resting membrane potential by actively transporting Na⁺ out and K⁺ into the neuron.

Which part of the brainstem is responsible for regulating heart rate and respiration?

Pons
Medulla oblongata
Midbrain
Thalamus
2

The medulla oblongata regulates vital functions such as heart rate and respiration.

Which structure in a neuron is responsible for transmitting signals away from the cell body?

Dendrites
Axon
Synapse
Myelin sheath
2

The axon carries nerve impulses away from the neuron's cell body toward synapses or effector organs.

Which structure in the neuron stores and releases neurotransmitters?

Axon
Synaptic vesicles
Dendrites
Node of Ranvier
2

Synaptic vesicles, located in the synaptic knob, store neurotransmitters and release them into the synaptic cleft.

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