Neuroscience: Structure and Function

The video explains the nervous system, which controls our senses and body actions. It is divided into the central nervous system, comprising the brain and spinal cord, and the peripheral nervous system, consisting of nerves throughout the body. The brain has three main parts: the cerebrum, cerebellum, and medulla, each responsible for different functions like sensing, movement, and involuntary actions. The peripheral nervous system includes sensory and motor nerves that transmit messages between the brain and body. Neurons, the building blocks of nerves, have dendrites and axons for message transmission. The video concludes with a mention of additional resources for further learning.

What is the primary role of the nervous system?

• To produce hormones

• To control the body's senses and actions

• To digest food

• To circulate blood

Which part of the nervous system includes the brain and spinal cord?

• Somatic nervous system

• Central nervous system

• Peripheral nervous system

• Autonomic nervous system

What is the main function of the cerebrum?

• Managing senses, thoughts, and imagination

• Processing emotions

• Regulating balance and movement

• Controlling involuntary actions

Which part of the brain is responsible for balance and learning new skills?

• Medulla

• Thalamus

• Cerebrum

• Cerebellum

What does the medulla control?

• Voluntary muscle movements

• Senses and imagination

• Involuntary actions like heartbeat and breathing

• Memory and learning

What is the role of sensory nerves in the peripheral nervous system?

• To regulate balance and coordination

• To receive information from the senses and send it to the brain

• To control involuntary actions

• To carry messages from the brain to the body

What do motor nerves do?

• Control balance and coordination

• Regulate involuntary actions

• Carry instructions from the brain to the body

• Transmit sensory information to the brain

What are the three main parts of a neuron?

• Cerebrum, cerebellum, medulla

• Nucleus, dendrites, axon

• Sensory nerves, motor nerves, interneurons

• Brain, spinal cord, nerves

How do dendrites function in a neuron?

• They transmit messages away from the cell body

• They regulate balance and coordination

• They receive electric messages and send them to the cell body

• They control involuntary actions

What is the function of axons in neurons?

• To regulate balance and coordination

• To transmit messages away from the cell body

• To receive messages from other neurons

• To control involuntary actions