Peripheral Nervous System Structure
The nervous system is broadly divided into two main parts: the Central Nervous System (CNS) and the Peripheral Nervous System (PNS).
- Central Nervous System (CNS): Consists of the brain and spinal cord.
- Peripheral Nervous System (PNS): Includes all the nerves that branch out from the CNS to the rest of the body.
Nervous System Divisions Explained
The Peripheral Nervous System (PNS) is further divided into two primary functional divisions:
- Somatic Nervous System: Controls voluntary movements and transmits sensory information.
- Autonomic Nervous System: Regulates involuntary bodily functions like heart rate, digestion, and breathing.
Identifying PNS Components
Based on the standard divisions of the nervous system:
- Option A (Somatic Nervous System): This is a major component of the PNS.
- Option B (Central Nervous System): This is separate from the PNS.
- Option C (Automatic Nervous System): This appears to be a typo, likely intended to be the Autonomic Nervous System.
- Option D (Autonomic Nervous System): This is the other major component of the PNS.
Therefore, the components of the Peripheral Nervous System from the given options are the Somatic Nervous System and the Autonomic Nervous System.
Important Questions from Biological Basis of Behaviour Neurons Synapses
Consider the following two statements and choose the correct option.
S1: Patients with Broca's aphasia have trouble producing speech.
S2: Patients with Wernicke's aphasia have trouble understanding what others say.- ________ in both lobes of the brain are responsible for coordination and interpretation of information as well as higher mental processing.
- Match the concerned human nervous system with their associated functions.
P. Sympathetic (i) Carrying messages from Central Nervous
System to muscles and glandsQ. Parasympathetic (ii) Carrying messages from senses to Central
Nervous SystemR. Afferent (iii) Maintaining body functions under normal
conditionsS. Efferent (iv) Fight-or-flight system If Central Nervous System = Brain + Spinal Cord, then Peripheral Nervous System = ?
- Match the neurotransmitters with their functions
P. Acetylcholine (i) Movement and pleasure sensation Q. Dopamine (ii) Sleep, anxiety, and appetite R. Serotonin (iii) Attention and memory S. Norepinephrine (iv) Arousal and mood
