Nervous and Sensory Systems

What is the main function of the nervous system in humans and animals?

• Produce hormones

• Regulate body temperature

• Transmit signals between different parts of the body

• Digest food

Explain the difference between the central nervous system and the peripheral nervous system.

• The central nervous system includes the brain and spinal cord, while the peripheral nervous system consists of all the nerves outside of the central nervous system.

• The central nervous system is responsible for motor functions, while the peripheral nervous system controls sensory functions.

• The central nervous system is voluntary, while the peripheral nervous system is involuntary.

• The central nervous system is located in the arms and legs, while the peripheral nervous system is in the head and torso.

How do sensory receptors help in the functioning of the sensory system?

• Sensory receptors only respond to visual stimuli.

• Sensory receptors detect stimuli and convert them into electrical signals for interpretation by the brain.

• Sensory receptors block the transmission of stimuli to the brain.

• Sensory receptors amplify the signals received from the brain.

Describe the process of neurotransmission in the nervous system.

• Neurotransmission is the transfer of genetic material between neurons.

• Neurotransmission involves the release of neurotransmitters, their binding to receptors, and the subsequent generation of electrical or chemical signals in the receiving cell.

• Neurotransmission is the process of converting light into sound waves in the brain.

• Neurotransmission involves the release of hormones into the bloodstream.

What are the similarities and differences between the human and animal nervous systems?

• The similarities include the presence of neurons and central/peripheral nervous systems. The differences include the complexity of the brain and cognitive abilities.

• Both systems have identical functions

• Animals have more complex cognitive abilities

• The human nervous system lacks neurons

Discuss the role of the brain in processing sensory information.

• The brain processes sensory information by storing signals from sensory organs

• The brain processes sensory information by emitting signals to sensory organs

• The brain processes sensory information by ignoring signals from sensory organs

• The brain processes sensory information by receiving signals from sensory organs, interpreting them, and generating appropriate responses.

Explain the concept of fight or flight response in relation to the nervous system.

• The fight or flight response is only triggered by physical danger.

• The fight or flight response is a physiological reaction to a perceived threat, controlled by the sympathetic nervous system.

• The fight or flight response is a psychological reaction to a perceived threat.

• The fight or flight response is controlled by the parasympathetic nervous system.

What are the different types of neurons found in the nervous system?

• Sensory neurons, motor neurons, and interneurons

• Visual neurons, auditory neurons, and olfactory neurons

• Central neurons, peripheral neurons, and autonomic neurons

• Excitatory neurons, inhibitory neurons, and modulatory neurons

How do reflex actions demonstrate the efficiency of the nervous system?

• Reflex actions highlight the nervous system's reliance on external cues for responses.

• Reflex actions showcase the nervous system's ability to predict stimuli before they occur.

• Reflex actions demonstrate the efficiency of the nervous system by showcasing rapid and automatic responses to stimuli without involving conscious thought.

• Reflex actions demonstrate the inefficiency of the nervous system by being slow and requiring conscious thought.

Discuss the impact of sensory deprivation on the nervous system.

• Sensory deprivation can impact the nervous system by altering neural pathways, decreasing brain activity, and potentially causing cognitive impairments.

• Sensory deprivation has no impact on the nervous system

• Sensory deprivation leads to increased brain activity

• Sensory deprivation improves cognitive function