Saltatory Conduction Explained: Nerve Impulse Transmission Made Easy Question 1. Conduction of impulses in my elinated nerve fibers/ saltatory conduction. Answer: Node of Ranvier: It is a part of nerve fiber which is not covered by myelin sheath. Saltatory conduction: Myelin sheath is impermeable to ions. Thus, sodium enter into nerve fibers from ECF only … [Read more...] about Saltatory Conduction Explained: Nerve Impulse Transmission Made Easy
Understanding Chromosomes: The Blueprint Of Life In Every Cell
Understanding Chromosomes: The Blueprint Of Life In Every Cell Question 1. Chromosome. Answer: A typical chromosome is made up of two rod-shaped chromatids which are placed more or less parallel to each other. Both chromatids are united to each other at a light staining area called centomere. Each chromatid has two arms - one on either side. Chromosome … [Read more...] about Understanding Chromosomes: The Blueprint Of Life In Every Cell
Barr Body Explained: X-Chromosome Inactivation Made Simple
Barr Body Explained: X-Chromosome Inactivation Made Simple Question 1. Barr body. Answer: The inactivation of an X-chromosome forms sex - chromatin also called barr body. It can be seen in the nuclei of somatic cells in the female only. Barr body Appearance: Chromatin mass lying against the inner surface of the nuclear membrane Or as a small drumstick' of … [Read more...] about Barr Body Explained: X-Chromosome Inactivation Made Simple
Understanding Nerve Fibers: Types And Classification
Understanding Nerve Fibers: Types And Classification Types of nerve fibers. Answer: 1. Depending upon structure. Myelinated nerve fibers. Nerve fibers covered by myelin sheath. Non myelinated nerve fibers. Does not have myelin sheath. 2. Depending upon distribution. Somatic nerve fibers - supplies skeletal muscles. Visceral nerver … [Read more...] about Understanding Nerve Fibers: Types And Classification
Soft Palate Made Simple: Muscles, Aponeurosis, And Clinical Significance
Soft Palate Made Simple: Muscles, Aponeurosis, And Clinical Significance Describe external features, muscles, nerve supply & blood supply of soft palate (or) Tensor palatine muscle (or) Muscles of soft palate Answer: Soft Palate: It is movable, muscular fold It separates the nasopharynx from the oropharynx Soft Palate External Features: It has two … [Read more...] about Soft Palate Made Simple: Muscles, Aponeurosis, And Clinical Significance