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Neuroscientists use cellular and molecular biology, anatomy and physiology, human behavior and cognition, and other disciplines, to map the brain at a mechanistic level. Humans have an estimated...
- How The Brain Develops
An individual’s genes are a key factor affecting how the...
- Promoting Brain Health
Life places non-stop demands on the brain, and with age,...
- Fields of Study in Neuroscience
Neuroscience is a vast field of study containing a range of...
- How Brain Cells Work
Science literacy also involves neuroscience. How Brain...
- Brain Disease and Injury
The depth of the brain’s unconscious, taken-for-granted...
- How The Brain Develops
- Endoplasmic Reticulum Definition
- Endoplasmic Reticulum Overview
- Endoplasmic Reticulum Function
- Structure of The Endoplasmic Reticulum
- Endoplasmic Reticulum Location
- Types of Endoplasmic Reticulum
The endoplasmic reticulum (ER) is a large organelle made of membranous sheets and tubules that begin near the nucleus and extend across the cell. The endoplasmic reticulum creates, packages, and secretes many of the products created by a cell. Ribosomes, which create proteins, line a portion of the endoplasmic reticulum.
The entire structure can account for a large proportion of the endomembrane system of the cell. For instance, in cells such as liver hepatocytes that are specialized for protein secretion and detoxification, the ER can account for more than 50% of the total lipid bilayer of the cell.Similarly, the ER membrane system is particularly prominent in pan...
The ER plays a number of roles within the cell, from protein synthesis and lipid metabolism to detoxification of the cell. Cisternae, each of the small folds of the endoplasmic reticulum, are commonly associated with lipid metabolism. This creates the plasma membrane of the cell, as well as additional endoplasmic reticulum and organelles. They also...
The endoplasmic reticulum membrane system can be morphologically divided into two structures–cisternae and sheets. Cisternae are tubular in structure and form a three-dimensional polygonal network.They are about 50 nm in diameter in mammals and 30 nm in diameter in yeast. ER sheets, on the other hand, are membrane-enclosed, two-dimensional flattene...
The endoplasmic reticulum processes most of the instructions from the nucleus. As such, the endoplasmic reticulum surrounds the nucleus and radiates outward. In cells that secrete many products for the rest of the body, the endoplasmic reticulum can account for more than 50% of the cell. In general, the nucleus expresses mRNA (messenger RNA), which...
There are two major types of ER within each cell – smooth endoplasmic reticulum (SER) and rough endoplasmic reticulum (RER). Each has distinct functions, and often, differing morphology. The SER is involved in lipid metabolism and acts as the calcium store for the cell. This is particularly important in muscle cells that need Ca2+ions for contracti...
- Gabe Buckley
Aug 23, 2024 · The endoplasmic reticulum (ER) is a continuous membrane system that forms a series of flattened sacs within the cytoplasm of eukaryotic cells. All eukaryotic cells contain an ER. In animal cells, the ER usually constitutes more than half of the membranous content of the cell.
- The ER can be classified in two functionally distinct forms: smooth endoplasmic reticulum (SER) and rough endoplasmic reticulum (RER). The morpholo...
- The endoplasmic reticulum (ER) serves important functions particularly in the synthesis, folding, modification, and transport of proteins. Differen...
- The ER was first noted in the late 19th century, when studies of stained cells indicated the presence of some type of extensive cytoplasmic structu...
It is a state of defense presided over by nerve circuits of fear and activated by misperception or overestimation of threat from the environment, from the inner world of the body, or from the...
Sep 25, 2019 · Interoception — your brain’s representation of sensations from your own body — is the sensory consequence of this activity, Barrett says, and is central to everything from thought, to emotion, to decision making, and our sense of self.
- Kim Armstrong
- 2019
Jun 30, 2017 · This review aims to classify and clarify, from a neuroanatomical, neurophysiological, and psychological perspective, different memory models that are currently widespread in the literature as well as to describe their origins.
People also ask
What role does the ER play in a cell?
What is er in psychology?
How many types of ER are there in a cell?
Why is the ER important?
Emotion regulation (ER) refers to attempts to influence emotions in ourselves or others. Over the past several decades, ER has become a popular topic across many subdisciplines within psychology.
