Reflex Action: Types, Mechanism, Examples, And Diagram Question 1. What are the nodes of Ranvier and the incisures of Schmidt–Lanterman? Answer. In myelinated nerve fibers, the myelin sheath is segmented. These segments are separated at regular intervals by nodes of Ranvier. The incisures of Schmidt–Lanterman are oblique clefts in the myelin sheath and act as conduction … [Read more...] about Reflex Action: Types, Mechanism, Examples, And Diagram
Wallerian Degeneration
Wallerian Degeneration Question 1. What is peripheral nerve? List its connective tissue sheaths. Answer. The peripheral nerve is a bundle of nerve fibers outside the central nervous system. Examples of peripheral nerves are 12 pairs of cranial nerves and 31 pairs of spinal nerves. "Importance Of Wallerian Degeneration In Nerve Repair" Connective tissue sheaths of … [Read more...] about Wallerian Degeneration
Parts Of A Neuron: Structure And Functions
Parts Of A Neuron: Structure And Functions What is Neuron? Describe the structure of a typical neuron. Answer. The nerve cell along with its processes is called a neuron. Structure of a typical neuron The typical neuron consists of a cell body (perikaryon) and two types of processes: short and long. The typical neurons have many short processes called dendrites, and … [Read more...] about Parts Of A Neuron: Structure And Functions
Periosteum: Anatomy, Structure And Function
Periosteum: Anatomy, Structure And Function Write a short note on the periosteum. Answer. The periosteum forms the outer fibrous covering of the bone. It covers the whole of the bone surface, except where the bone is covered by articular cartilage. The periosteum is attached to the bone tissue by Sharpey’s fibres. It consists of two layers: An outer fibrous layer, … [Read more...] about Periosteum: Anatomy, Structure And Function
Understanding The Carotid Sheath: Anatomy, Formation, And Clinical Relevance
Understanding The Carotid Sheath: Anatomy, Formation, And Clinical Relevance Write a short note on the carotid sheath. Answer. Formation It is formed by the condensation of fibroareolar tissue around common and internal carotid arteries and internal jugular vein. It extends from the base of the skull to the arch of the aorta. Its anterior wall is connected to … [Read more...] about Understanding The Carotid Sheath: Anatomy, Formation, And Clinical Relevance