Extracellular Matrix (ECM): Structure, Function, and Components
TISSUE: Introduction: ECM is a complex network of macromolecules that acts as “cement” between the universal biological cells, as part of highly specialized structures: cartilage, tendons, bones, etc. This function supports the ECM’s role in regulating the behavior of cells that contact it, influencing their differentiation, development, migration, and shape. The ECM is produced by ECM-producing cells called connective tissue, connective, or supportive cells.
Supporting tissues: broadly refer to
Read MoreExtracellular Matrix: Structure, Function, and Components
TISSUE: Introduction: ECM is a complex network of macromolecules that acts as “cement” between the universal biological cells, as part of highly specialized structures: cartilage, tendons, bones, etc. This function supports the ECM’s role in regulating the behavior of cells that contact it, influencing their differentiation, development, migration, and shape. The ECM is produced by ECM-producing cells called connective tissue, connective, or supportive cells.
Supporting tissues: broadly refer to
Read MoreExtracellular Matrix: Structure, Function, and Components
TISSUE: Introduction: ECM is a complex network of macromolecules that acts as “cement” between the universal biological cells, as part of highly specialized structures: cartilage, tendons, bones, etc. This function supports the ECM’s role in regulating the behavior of cells that contact it, influencing their differentiation, development, migration, and shape. The ECM is produced by ECM-producing cells called connective tissue, connective, or supportive cells.
Supporting tissues: broadly refer to
Read MoreInfectious Diseases & Transmission: A Comprehensive Guide
Infectious Diseases
Pathogenic Microorganisms
Infectious diseases are caused by pathogenic microorganisms such as bacteria, viruses, protozoa, and fungi. While many organisms exist in nature, most are harmless. Those that cause disease are called pathogens.
Environmental Factors and Contamination
Human activities like industry, heating, and traffic contribute to air and water pollution. These pollutants can negatively impact human health.
Air Pollution
Substances that contribute to air pollution include:
Read MoreUnderstanding the Immune System: Innate and Adaptive Defenses
4 Types of Symbiosis. : Mutualism: both symbionts benefit from their interaction. EX: bacteria in your colon Worm describes another mutualistic relationship. Commensalism: one symbiont benefits without significantly affecting the other. EX: microscopic animals—hair follicle mites—live on your skin without causing measurable harm to you. Amensalism: one symbiont is harmed by a second symbiont, while the second is neither harmed nor helped by the first. EX: the fungus Penicillium produces penicillin,
Morphological Differences Between Primary and Permanent Teeth: A Comprehensive Guide
Morphological Differences Between Primary and Permanent Teeth
Crown Characteristics
- Primary teeth have wider crowns mesiodistally compared to their length.
- Anterior primary teeth are narrower and shorter than permanent teeth.
- Primary molars have relatively longer and more slender roots than permanent molars.
Enamel and Cervical Ridge
- The cervical ridge of enamel is more prominent in primary teeth, especially on the labial and lingual surfaces.
- Primary molars have more slender crowns and roots mesiodistally