Describe the Structure and Function of the Peripheral Nervous System

The membrane potential can alter in response to neurotransmitter molecules released from other neurons and environmental stimuli. We made flashcards to help you review the content in this episode.

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However knowing that distinct types of neurons play different roles within the body can help you develop a basic understanding of the nervous systems structure.

. Today Hank kicks off our look around MISSION CONTROL. The CNS is the major division and consists of the brain and the spinal cord. The CNS is enclosed and protected by the meninges a three-layered system.

Imagine billions of microscopic parts each with its own identity working together in an organized manner for the benefit of the total being. Human beings are arguably the most complex organisms on this planet. Nerves are bundles of axons found in the peripheral nervous system.

Which of the following glands can be observed on the ventral surface of the sheep brain. The spinal canal contains the spinal cord while the cranial cavity contains the brain. The human body is a single structure but it is made up of billions of smaller structures of four major kinds.

These signals are electric currents generated by changing the membrane potential. The pituitary gland can be seen on the ventral surface of the brain. Introduction to the Human Body.

Pituitary gland Pineal gland Mammillary body Olfactory bulb. Understanding the types of neurons and how they affect the body can provide an explanation for different disorders of the nervous system from traumatic spinal cord injuries to neurodegenerative diseases. The optic nerve is an extension of the brain not part of the brain.

The nervous system of vertebrates including humans is divided into the central nervous system CNS and the peripheral nervous system PNS. For the nervous system to function neurons or nervous cells must be able to send and receive signals.

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