8.1.1 Central and Peripheral Nervous Systems

• What are the two main components of the Central Nervous System (CNS)?

  Brain and spinal cord
• The Peripheral Nervous System (PNS) comprises all nerve tissue outside the brain and spinal cord
• The brain controls complex functions like thinking and memory.
• What does the Central Nervous System (CNS) process and integrate information from?

  Sensory receptors
• The Peripheral Nervous System (PNS) connects the Central Nervous System (CNS) to the body's periphery
• The spinal cord transmits signals between the brain and the rest of the body.
• What are the two subdivisions of the Motor Division in the PNS?

  Somatic and autonomic
• Arrange the functions of the Central Nervous System (CNS) in the correct order:

  1️⃣ Sensory Processing

  2️⃣ Integration

  3️⃣ Motor Control
• The Central Nervous System (CNS) performs sensory processing by receiving and interpreting information from internal and external environments
• The Central Nervous System (CNS) performs three critical functions
• Match the function of the CNS with its description:

  Sensory Processing ↔️ Receives and interprets sensory information

  Integration ↔️ Processes sensory information and coordinates responses

  Motor Control ↔️ Controls voluntary and involuntary movements
• The brain processes visual information, while the spinal cord transmits signals between the brain and the body.
• The Peripheral Nervous System (PNS) connects the CNS to the body's periphery
• The sensory division of the PNS transmits sensory information from receptors to the CNS.
• Match the subdivision of the PNS motor division with its function:

  Somatic system ↔️ Controls voluntary skeletal muscles

  Autonomic system ↔️ Regulates involuntary functions
• Touching a hot surface triggers both the sensory and motor functions of the PNS.
• The Peripheral Nervous System (PNS) comprises all nerve tissue outside the brain and spinal cord
• The sensory division of the PNS includes somatic senses like touch and pain.
• Match the division of the PNS with its key senses:

  Sensory ↔️ Touch, pain, vision, hearing

  Motor ↔️ Skeletal muscle control, involuntary functions
• Order the components of the Central Nervous System (CNS):

  1️⃣ Brain

  2️⃣ Spinal Cord
• The brain controls higher-level functions like thought, memory, and emotions.
• The spinal cord transmits sensory and motor signals between the brain and the periphery
• The sensory division of the PNS transmits information from receptors to the CNS.
• The motor division of the PNS includes both somatic and autonomic systems.
• Match the PNS division with its key features:

  Sensory ↔️ Involves various types of sensory receptors

  Motor ↔️ Divides into Somatic and Autonomic systems
• The sensory division of the PNS transmits sensory input to the CNS
• The autonomic nervous system regulates involuntary functions without conscious control.
• Match the division of the ANS with its effects:

  Sympathetic Division ↔️ Increases heart rate and blood pressure

  Parasympathetic Division ↔️ Decreases heart rate and blood pressure
• The somatic nervous system controls voluntary movements of skeletal muscles
• The somatic nervous system involves direct neural pathways to skeletal muscles.
• What prepares the body for "fight or flight" response?

  Sympathetic division
• The somatic nervous system (SNS) controls voluntary movements of the body.
• The somatic nervous system (SNS) controls voluntary movements, while the autonomic nervous system (ANS) controls involuntary functions.
• Match the target tissues with the nervous system division:

  Skeletal muscles ↔️ Somatic Nervous System

  Smooth muscles ↔️ Autonomic Nervous System
• What are the two components of the Central Nervous System (CNS)?

  Brain and spinal cord
• The Peripheral Nervous System (PNS) connects the Central Nervous System (CNS) to the body's periphery.
• The sensory division of the PNS transmits information from receptors to the CNS.
• Match the function with the PNS division:

  Transmits sensory information ↔️ Sensory Division

  Carries signals from CNS ↔️ Motor Division
• What part of the CNS controls higher-level processes like memory and emotions?

  Brain
• The motor division of the PNS is subdivided into the somatic and autonomic systems.