Nervous System Functions and Structures

The video introduces the central nervous system, explaining how the brain controls body functions and coordinates actions through neurons. It details the structure of neurons, including axons and dendrites, and describes the types of neurons: sensory, motor, and interneurons. The video also covers the brain's structure, its protective meninges, and the role of cerebral spinal fluid.

What is the primary function of the central nervous system?

• To produce hormones

• To protect the brain and spinal cord

• To coordinate actions and transmit signals

• To transmit messages from the brain to the body

Which two main parts make up the central nervous system?

• Muscles and glands

• Brain and spinal cord

• Neurons and axons

• Peripheral nerves and sensory organs

What is the role of dendrites in a neuron?

• To store neurotransmitters

• To protect the neuron

• To transmit impulses to other neurons

• To receive impulses from other neurons

What is the function of the myelin sheath?

• To connect neurons

• To insulate axons and speed up signal transmission

• To protect the brain

• To store neurotransmitters

Which type of neuron carries impulses from the sense organs to the CNS?

• Sensory neurons

• Motor neurons

• Interneurons

• Peripheral neurons

What is the role of motor neurons?

• To transmit signals to the brain

• To carry impulses from the CNS to muscles or glands

• To connect sensory neurons

• To protect the spinal cord

What is the primary function of the brain in the nervous system?

• To produce hormones

• To transmit signals to the peripheral nervous system

• To protect the spinal cord

• To act as the center of the nervous system

What are the protective layers of the brain called?

• Neurons

• Meninges

• Axons

• Dendrites

What is the function of cerebrospinal fluid?

• To connect neurons

• To store neurotransmitters

• To protect the brain from shocks

• To transmit nerve impulses

What disorder is caused by inflammation of the meninges?

• Meningitis

• Alzheimer's

• Parkinson's

• Epilepsy