Nervous System Functions and Actions

The video tutorial covers the nervous system, focusing on the spinal cord and nerves. It explains the structure and function of the spinal cord, the role of nerves as messengers, and the types of nerves: sensory and motor. The video also describes how the nervous system processes information and differentiates between voluntary and involuntary actions. Finally, it includes review questions to reinforce learning.

What is the primary function of the spinal cord?

• To store memories

• To produce hormones

• To connect the brain to the rest of the body

• To protect the brain

What are nerves primarily responsible for?

• Producing energy

• Circulating blood

• Transferring messages throughout the body

• Digesting food

Which type of nerve sends information from sense organs to the brain?

• Motor nerve

• Sensory nerve

• Peripheral nerve

• Central nerve

How does the nervous system respond when you touch a hot object?

• It increases blood circulation

• It sends a message to the heart

• It produces a response to withdraw the hand

• It starts the digestion process

What is the role of motor nerves?

• To send information from the brain to the body

• To send information from the body to the brain

• To protect the spinal cord

• To regulate body temperature

Which of the following is a voluntary action?

• Heart beating

• Digestion

• Running

• Breathing

What characterizes involuntary actions?

• They occur without our conscious control

• They are always related to movement

• They can be controlled by us

• They are performed with our knowledge

Which part of the brain is the largest?

• Cerebellum

• Brainstem

• Medulla

• Cerebrum

What protects the brain?

• Ribcage

• Muscles

• Vertebral column

• Skull

Where is the spinal cord located?

• Inside the skull

• Inside the vertebral column

• In the thoracic cavity

• In the abdominal cavity