What are the two major regions of the nervous system? (2024)

What are the two major regions of the nervous system?

The nervous system as a whole is divided into two subdivisions: the central nervous system (CNS) and the peripheral nervous system (PNS).

What are the 2 main regions of the nervous system?

The nervous system as a whole is divided into two subdivisions: the central nervous system (CNS) and the peripheral nervous system (PNS).

What are the two 2 major parts of the nervous system?

The body's nervous system is made up of two major parts, the central nervous system, and the peripheral nervous system.

What are the two major divisions of the nervous system ______________ and _____________ nervous systems?

The nervous system has two divisions: central nervous system (CNS) and peripheral nervous system (PNS).

What are the two major anatomical regions of the nervous system?

The Central and Peripheral Nervous Systems

We can anatomically divide the nervous system into two major regions: the central nervous system (CNS) is the brain and spinal cord, the peripheral nervous system (PNS) is the nerves (Figure 12.1. 1).

What are the two main divisions of the nervous system called quizlet?

The nervous system is divided into two main parts: the central and the peripheral nervous system. The central nervous system can be further divided into the brain and the spinal cord.

What are the two major divisions of the nervous system and the structures found in each quizlet?

List the 2 major divisions of the nervous system and the structures found in each. The 2 divisions of the nervous system are the central nervous system (CNS) containing the brain and the spinal cord an the peripheral nervous system (PNS) containing spinal nerves, cranial nerves, and ganglia that are outside of the PNS.

What happens if a person suffers from a traumatic brain injury in the prefrontal cortex?

People with injury to their prefrontal cortex can have difficulties with their executive function skills - when this happens, they are said to have executive dysfunction. Executive dysfunction is also sometimes referred to as 'frontal lobe problems' or 'dysexecutive syndrome'.

What are the two main communication systems of the body?

Humans have two types of communication systems. These are the nervous system and the endocrine (hormone) system. These systems regulate body processes through chemical and electrical signals that pass between cells.

What are the two ways in which nervous system communicates with muscle?

Communication and control of the muscles cells takes place either through brain (voluntary actions) or through spinal cord (reflex action).

What is the largest part of the brain called?

Cerebrum. The cerebrum (front of brain) comprises gray matter (the cerebral cortex) and white matter at its center. The largest part of the brain, the cerebrum initiates and coordinates movement and regulates temperature.

What are the two major functions of the central nervous system?

What are the two main divisions of the nervous system are the sympathetic nervous system and the parasympathetic nervous system?

The two divisions of the autonomic nervous system are the sympathetic division and the parasympathetic division. The sympathetic system is associated with the fight-or-flight response, and parasympathetic activity is referred to by the epithet of rest and digest. Homeostasis is the balance between the two systems.

What are the divisions of the nervous system review answers?

The central and peripheral nervous systems are the two main divisions of the nervous system. The central nervous system includes the brain and spinal cord, whereas the peripheral nervous system consists mainly of nerves that connect the central nervous system with the rest of the body.

Which type of fiber has the slowest conduction speed?

C fibers are unmyelinated unlike most other fibers in the nervous system. This lack of myelination is the cause of their slow conduction velocity, which is on the order of no more than 2 m/s.

Which type of fiber has the largest diameter?

Type IIb fibers, or fast glycolytic fibers, are fast-twitching fibers. They are the largest fibers in diameter due to their high density of actin and myosin proteins.

What brain region is responsible for learning memory and personality?

It consists of the cerebrum — the area with all the folds and grooves typically seen in pictures of the brain — as well as other structures under it. The cerebrum contains the information that essentially makes you who you are: your intelligence, memory, personality, emotion, speech, and ability to feel and move.

Can head trauma cause brain injury?

A traumatic brain injury (TBI) can be caused by a forceful bump, blow, or jolt to the head or body, or from an object that pierces the skull and enters the brain. Not all blows or jolts to the head result in a TBI.

Can head trauma cause frontal lobe damage?

The frontal lobes are particularly prone to damage in closed head injury because of direct contusion, as well as disruption of connections on which frontal systems depend for functioning. Three primary behavioral syndromes are described, associated with damage to dorsolateral, orbital, and mesial frontal subsystems.

Can head trauma cause brain damage?

An object that goes through brain tissue, such as a bullet or shattered piece of skull, also can cause traumatic brain injury. Mild traumatic brain injury may affect your brain cells temporarily. More-serious traumatic brain injury can result in bruising, torn tissues, bleeding and other physical damage to the brain.

Which human body systems interact to deal with changes in heart rate in the human body?

Heart rate is controlled by the two branches of the autonomic (involuntary) nervous system. The sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS). The sympathetic nervous system (SNS) releases the hormones (catecholamines - epinephrine and norepinephrine) to accelerate the heart rate.

What will you do in order to maintain your major organs healthy?

What is the main role of nerves in human movement?

Nerves are like cables that carry electrical impulses between your brain and the rest of your body. These impulses help you feel sensations and move your muscles. They also maintain certain autonomic functions like breathing, sweating or digesting food.

How does the brain initiate movement?

These voluntary movements are commanded by the motor cortex, the zone of the cerebrum located behind the frontal lobe. The motor cortex sends a neural message that moves through the brain stem along the spinal cord and into the neural network to the muscle being commanded.

What is the nervous system for dummies?

The nervous system includes the brain, spinal cord, and a complex network of nerves. This system sends messages back and forth between the brain and the body. The brain is what controls all the body's functions. The spinal cord runs from the brain down through the back.