Human Sensory and Nervous Systems

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, highlighting their roles in voluntary and involuntary actions. The video also covers sensory organs and receptors, describing how they detect stimuli and send information to the brain, enabling us to experience sensations and emotions.

What is the primary function of the nervous system?

• To circulate blood

• To digest food

• To produce hormones

• To respond to stimuli

Which type of neuron is responsible for carrying information from sensory receptors to the brain?

• Sensory neurons

• Interneurons

• Motor neurons

• Axons

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

• Cerebellum

• Medulla

• Spinal cord

• Cerebrum

Which system is responsible for involuntary actions like heart rate and breathing?

• Central nervous system

• Autonomic nervous system

• Somatic nervous system

• Peripheral nervous system

What is a reflex action?

• A conscious decision

• An automatic response

• A slow response

• A voluntary movement

Which part of the eye is responsible for detecting light?

• Retina

• Lens

• Cornea

• Iris

What type of photoreceptor is responsible for color vision?

• Optic nerve

• Cones

• Pupil

• Rods

How does the ear convert sound waves into signals the brain can understand?

• Through the eardrum

• Via the cochlea

• Using the auditory nerve

• By the outer ear

Which sensory organ is primarily responsible for detecting chemicals in the air?

• Tongue

• Skin

• Ear

• Nose

What is the role of the skin in the sensory system?

• To hear sounds

• To taste food

• To sense pressure and temperature

• To detect light