Nervous System Functions and Responses

The video explores the human nervous system, detailing how it controls body responses through neurons and nerve impulses. It explains the central and peripheral nervous systems, their roles, and how sensory organs detect stimuli. The brain's structure and functions, including the cerebrum, cerebellum, and medulla, are discussed, highlighting their control over voluntary and involuntary actions. The video also covers sensory receptors in the eyes, ears, nose, tongue, and skin, explaining how they contribute to our perception of the world.

What is the primary function of the nervous system?

• To digest food

• To produce hormones

• To control body responses to stimuli

• To circulate blood

Which type of cell is responsible for carrying nerve impulses?

• Neurons

• Muscle cells

• Red blood cells

• Epithelial cells

What part of the neuron carries messages away from the cell body?

• Axon

• Dendrites

• Nucleus

• Synapse

Which part of the brain is responsible for voluntary movements and logical thinking?

• Spinal cord

• Cerebellum

• Cerebrum

• Medulla

What is the role of the cerebellum?

• Process visual information

• Control heart rate

• Maintain balance and posture

• Regulate emotions

What is the function of the peripheral nervous system?

• To produce hormones

• To connect the central nervous system to the rest of the body

• To control involuntary actions

• To digest food

What is a reflex action?

• A voluntary movement

• A slow response to stimuli

• A quick involuntary response

• A conscious decision

Which sensory organ is responsible for detecting sound?

• Eyes

• Ears

• Nose

• Skin

What type of photoreceptors are responsible for color vision?

• Rods

• Cones

• Olfactory cells

• Taste buds

How does the brain interpret the signals from the eyes?

• By turning the image upside down

• By focusing only on colors

• By combining images from both eyes

• By ignoring one eye's input