Tag:
sensory neurons
Nervous System
Understanding the Somatic, Autonomic, and Enteric Divisions of the Nervous System
nervous system, somatic nervous system, autonomic nervous system, enteric nervous system, central nervous system, peripheral nervous system, brain function, spinal cord, sensory neurons, motor neurons, ganglia, digestive tract, homeostasis, reflexes, voluntary movement, involuntary control, cranial nerves, spinal nerves, sympathetic ganglia, parasympathetic ganglia
Microscope world
Light Micrograph of a Meissner Corpuscle: Touch Receptor in the Dermis
The Meissner corpuscle, a key touch receptor, is captured in this light micrograph at 100x magnification, credited to “Wbensmith”/Wikimedia Commons, showing its location within a dermal papilla near the basement membrane and stratum basale of the epidermis in a skin cross-section. This structure plays a vital role in detecting light touch and low-frequency vibrations, contributing to the skin’s sensory capabilities. This article examines the anatomical structure of the Meissner corpuscle, its physical characteristics, and its function in sensory perception. Through this detailed analysis, we aim to provide a comprehensive understanding of this specialized receptor and its significance in human physiology.
Physiology
Layers of the Epidermis: Anatomical Structure and Protective Functions
The epidermis is the outermost layer of the skin, serving as a protective barrier against environmental threats. This article examines the anatomical structure of the epidermis, detailing its five distinct layers—stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum—along with key cellular components like keratinocytes and Merkel cells, as illustrated in a comprehensive diagram. By exploring the structure and physical characteristics of the epidermis, we uncover its essential role in safeguarding the body and maintaining skin integrity.
Embryology
Transverse Section of the Neural Tube: Exploring Floor Plate and Roof Plate Anatomy
The transverse section of the neural tube is a key focus in understanding early nervous system development, offering a detailed view of its internal organization. This diagram highlights critical structures such as the floor plate and roof plate, alongside nerve roots and cellular layers, providing essential insights for medical students and professionals studying neuroembryology. Dive into this comprehensive guide to explore the anatomical and developmental significance of these components.