9/11/2023 0 Comments Dendrite axon synapse micrograph![]() You should also identify the dorsal and ventral horns in slide 65-1N stained with Masson trichrome. At low magnification, differentiate inner gray from outer white matter and identify dorsal and ventral horns of the gray matter. Examine the cross section of the spinal cord in slide #65-2. Review the organization of the spinal cord using your atlas. Slide 066a thoracic spinal cord thoracic spinal cord luxol blue cross View Virtual Slide Slide 65-2 (spinal cord, H&E) View Virtual Slide Slide 65-1N (spinal cord, trichrome) View Virtual Slide For additional information please review the "Overview of the Nervous System" module from the Gross Anatomy website. Another way to think about the nervous system is according to its two main functional subdivisions: the somatic (voluntary, conscious) and autonomic (involuntary, unconscious) components. However, in this lesson you will study the spinal cord briefly because the cell bodies (perikarya) of motor (efferent) nerve fibers in the peripheral nerves are located in the spinal cord. You will learn more about the histological organization of the CNS in detail later in the year. The nerves of the PNS carry sensory (afferent) inputs to the CNS and motor (efferent) output from the CNS to the skeletal and cardiac muscles and the smooth muscles of blood vessels, organs and glands. The CNS consists of the brain and the spinal cord, while the PNS is composed of nerves and groups of nerve cells (neurons), called ganglia. The nervous system is divided structurally into the central nervous system (CNS) and the peripheral nervous system (PNS), although remember that these are really two components of one, integrated system.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |