Note: Explain and summarize the terms and ideas in the photo attached. Introduction of nervous system:The nervous system is the major controlling, regulatory, and communicating system in the body. It is the center of allmental activity including thought, learning, and memory. Like other systems in the body, the nervous system iscomposed of organs, principally the brain, spinal cord, nerves, and ganglia.organsparts/structuresfunctionsBrain - The brain, a soft, wrinkled organ that weighs about 3 pounds, is located inside the cranial cavity, where thebones of the skull surround and protect it. It's the seat of higher mental functions such as consciousness, memory,planning, and voluntary actions, also controls lower body functions such as the maintenance of respiration, heartrate, blood pressure, and digestion.Spinal cord - The spinal cord is a long, thin mass of bundled neurons that carries information through the vertebralcavity of the spine beginning at the medulla oblongata of the brain on its superior end and continuing inferiorly tothe lumbar region of the spine. In the lumbar region, the spinal cord separates into a bundle of individual nervescalled the cauda equina that continues inferiorly to the sacrum and coccyx.Nerves - Nerves are bundles of axons in the peripheral nervous system (PNS) that act as information highways tocarry signals between the brain and spinal cord and the rest of the body. Individual axons of the nerve are bundledinto groups of axons called fascicles, wrapped in a sheath of connective tissue called the perineurium.Meninges - The meninges are the protective coverings of the central nervous system. They consist of three layers:the dura mater is the thickest, toughest, and most superficial layer of meninges, arachnoid mater is much thinnerand more delicate than the dura mater, and pia mater is a thin and delicate layer of tissue that rests on the outsideof the brain and spinal cord.their relationsTogether, these organs are responsible for the control of the body and communication among its parts. The brainand spinal cord form the control center known as the central nervous system (CNS), where information is evaluatedand decisions made. The sensory nerves and sense organs of the peripheral nervous system (PNS) monitorconditions inside and outside of the body and send this information to the CNS. Efferent nerves in the PNS carrysignals from the control center to the muscles, glands, and organs to regulate their functions.

The human body has quite a few systems. These systems work together but perform separate particular…

The nervous system is the major controlling, regulatory, and communicating system in the body. It is the center of all mental activity including thought, learning, and memory. Like other systems in the body, the nervous system is composed of organs, principally the brain, spinal cord, nerves, and ganglia. organs parts/structures functions

The nervous system is the major controlling, regulatory, and communicating system in the body. It is the center of all mental activity including thought, learning, and memory. Like other systems in the body, the nervous system is composed of organs, principally the brain, spinal cord, nerves, and ganglia. organs parts/structures functions

Anatomy & Physiology

1st Edition

ISBN:9781938168130

Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Publisher:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Chapter13: Anatomy Of The Nervous System

Section: Chapter Questions

Problem 1ILQ: Watch this animation (http://openstaxcollege.org/l/braindevel) to examine the development of the...

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Watch this animation (http://openstaxcollege.org/l/braindevel) to examine the development of the brain, starting with the neural tube. As the anterior end of the neural tube develops, it enlarges into the primary vesicles that establish the forebrain, midbrain, and hindbrain. Those structures continue to develop throughout the rest of embryonic development and into adolescence. They are the basis of the structure of the fully developed adult brain. How would you describe the difference in the relative sizes of the three regions of the brain when comparing the early (25th embryonic day) brain and the adult brain?
Visit this site (http://openstaxcollege.org/l/neurolab)to see a virtual neurophysiology lab, and to observeelectrophysiological processes in the nervous system,where scientists directly measure the electrical signalsproduced by neurons. Often, the action potentials occur sorapidly that watching a screen to see them occur is nothelpful. A speaker is powered by the signals recorded froma neuron and it “pops” each time the neuron fires an actionpotential. These action potentials are firing so fast that itsounds like static on the radio. Electrophysiologists canrecognize the patterns within that static to understand whatis happening. Why is the leech model used for measuringthe electrical activity of neurons instead of using humans?
The earliest discrete embryonic structure from which the entire nervous system eventually develops is the ventricle. ependyma. neural tube. neural crest. neural plate.
___________ receive electrical impulses while ___________ conduct them to the next. regarding tranduction mechanisms in neurons.
The neural tissue has large - that are assisted by smaller cells called-
Fill in the blanks: The primary function of nervous system is to receive information from the external and internal_________________________ and ___________________________ Dendrites, impulses Environments, responses Neurons, reflexes Stimuli, movements What is the primary purpose of the peripheral nervous system? To process information received from the environment and coordinate responses To transmit information toward or away from the central nervous system
Two visibly different types of tissue occur in both the brain and the spinal cord. _______ consists of bundles of myelin-sheathed axons called tracts. _____consists of cell bodies, dendrites, and supporting neuroglial cells.
Fill in the blank: Collectively, the dura mater, arachnoid mater, and pia mater are called the _______________________.
The nervous system helps all parts of the body communicate with each other. It is made up of several sub-divisions with each subdivision havingstructural and functional characteristics that distinguish it from the others. Complete the diagram to show all the missing sections and explain their functions and where relevant their relationships to each other.
sometimes the terms neuron and nerve are mistakenly used interchangeably. explain the difference between the two structures.
Which of the following cavities contains a component ofthe central nervous system?a. abdominalb. pelvicc. cranial
Neuron(key terms: dendrites, axons, electrical signals, communication) The function (or job) of a neuron is