Related Experiment Video

Updated: Aug 17, 2026

Blood Collection from the American Horseshoe Crab, Limulus Polyphemus
12:48

Blood Collection from the American Horseshoe Crab, Limulus Polyphemus

Published on: October 13, 2008

The brain of the horseshoe crab (Limulus polyphemus). I. Neuroglia

W H Fahrenbach

    Tissue & Cell
    |January 1, 1976
    PubMed

    More Related Videos

    Using the Horseshoe Crab, Limulus Polyphemus, in Vision Research14:28

    Using the Horseshoe Crab, Limulus Polyphemus, in Vision Research

    Published on: July 3, 2009

    Complete Spinal Cord Injury and Brain Dissection Protocol for Subsequent Wholemount In Situ Hybridization in Larval Sea Lamprey08:11

    Complete Spinal Cord Injury and Brain Dissection Protocol for Subsequent Wholemount In Situ Hybridization in Larval Sea Lamprey

    Published on: October 14, 2014

    Related Concept Videos

    Glial Cells01:04

    Glial Cells

    Overview
    Nervous Tissue: Myelin01:25

    Nervous Tissue: Myelin

    The myelin sheath is a multilayered lipid and protein covering that insulates the axon of a neuron, enhancing the speed of nerve impulse conduction. Axons without this sheath are referred to as unmyelinated. Two types of neuroglia, Schwann cells in the peripheral nervous system (PNS) and oligodendrocytes in the central nervous system (CNS) are responsible for producing myelin sheaths.
    Schwann cells begin to form myelin sheaths around axons during fetal development. They wrap around a small...
    Neurogenesis and Regeneration of Nervous Tissue01:15

    Neurogenesis and Regeneration of Nervous Tissue

    In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
    Diencephalon: Anatomical Regions01:30

    Diencephalon: Anatomical Regions

    The diencephalon, etymologically translated as 'through brain,' plays an integral role as the conduit between the cerebrum and the vast extent of the nervous system. However, the olfactory system is an exception, as it interfaces directly with the cerebrum. The diencephalon, deeply ensconced beneath the cerebrum, primarily consists of three paired structures — the thalamus, hypothalamus, and epithelamus. It also includes accessory structures such as the subthalamus, which houses the subthalamic...
    Functional Brain Systems: Limbic System01:15

    Functional Brain Systems: Limbic System

    The limbic system, often called the "emotional brain," is a complex set of structures located deep within the brain. The intricate network of the limbic system supports a wide range of psychological functions, from emotional regulation to memory formation and sensory processing. This functional brain region encompasses specific parts of the diencephalon and the cerebrum, integrating the higher mental functions of the cerebral cortex with the primitive emotional responses of the deep brain...
    Nervous Tissue: Glial Cells01:31

    Nervous Tissue: Glial Cells

    Glia, or neuroglia, are vital support cells that assist neurons in their functions. The term "glia" originates from the Greek word for "glue," reflecting their role in holding the nervous system together. These cells can be categorized into six types: four in the central nervous system (CNS) and two in the peripheral nervous system (PNS).
    The CNS glial cell includes the astrocytes, the oligodendrocytes, the microglia, and the ependymal cells.
    Astrocytes are star-shaped glial cells that interact...