For this assignment, you will create a PowerPoint presentation (9-12 slides) tha
ID: 57947 • Letter: F
Question
For this assignment, you will create a PowerPoint presentation (9-12 slides) that outlines the basic functions of the brain, nervous system, and sensory systems. Be sure to address the following issues in your presentation: Brain: Be sure to include the major lobes of the brain as well as the areas in the sub-cortex. A brief description of the function of each component should be included. Nervous System: Include the major components of the nervous system (Central/Peripheral, Autonomic/Somatic, Sympathetic/Parasympathetic). Also include the basic functions of each section, along with the basic functions of neurons. Sensory Systems: Include the major features involved in vision and hearing, along with how each functions so that we can see and hear.
Explanation / Answer
Brain is the part of central nervous system that lies within the cranial cavity. The outer cortex of the brain is consists of the cell bodies of the neurons, forming the grey matter and the inner part contains nerve fibres (axons) forming the white matter. It consists of the following parts.
Cerebrum
Cerebellum
Mid brain
Pons
Medulla oblongata.
Cerebrum is the largest and most superior part of the brain. It consists of two hemispheres namely; right and left hemispheres, which are separated by,
Falx cerebri (a fold of dura matter) in the midline.
Corpus callosum (a bridge of white matter) below.
The surface of the cerebrum contains several foldings called gyri (raised ridge of the folding), and it consists of the nerve cells (grey matter) and it is also called as cerebral cortex. White matter (nerve fibres) is present in the interior of the hemispheres. These foldings are separated by sulces (shallow grooves) or fissures (deep grooves).
Our body receives the stimuli from the internal and external environment and reacts according to the situation. The functional organization of all these activities occurs through the nervous system. Neuron is the functional unit of nervous system.
The nervous system is basically classified into two types. They are,
Central nervous system (CNS)
Peripheral nervous system (PNS)
The peripheral nervous system includes,
Cranial nerves
Spinal nerves
Autonomous nervous system (ANS)
ANS is again divided into three types,
Sympathetic nervous system
Parasympathetic nervous system
Somatic nervous system
Autonomic nervous system regulates the various physiological activities that not generally under conscious control. For example, the heart beat and respiration are controlled by autonomic nervous system. Each pathway in ANS contains two neurons that are connected together at the ganglia in groups, and they are called preganglionic neurons and post ganglionic neurons. Acetylcholine (Ach) is the neurotransmitter that transmits information from pre ganglion to post ganglionic neurons.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.