Gap junction

Membrane Involved in Cell Adhesion and Recognition? Page: 111 Bloom’s Category: 1. Remembering 7. The _______ of animal cells resemble the _______ of plant cells. a. tight junctions; plasma membrane b. gap junctions; plasmodesmata c. desmosomes; plasmodesmata d. gap junctions; plasma membrane e. tight junctions; plasmodesmata Answer: b Textbook Reference: 6.2 How Is the Plasma Membrane Involved in Cell Adhesion and Recognition? Page: 113 Bloom’s Category: 1. Remembering 8. Which…

ATP, to the cells so that they are able to function at the necessary rate. At the end of each cell is an area of extensions of the membrane, called intercalated disks. These disks create tight junctions so that the cells cannot separate under the strain of contracting and pumping blood. The gap junctions in the heart exist so that the electrical impulses can be transmitted rapidly throughout the…

Energy Band gap Band gap 0 0 0 (i) Insulator (ii) Semiconductor (iii) Conductor Diagram 1: The energy band The differences between insulator, semiconductor and conductor. Insulator Semiconductor Conductor It has a large band gap. It has a smaller band gap. It has no band gap. It has a higher resistivity. It…

Section A “Selective Connexin43 Inhibition Prevents Isoproterenol-Induced Arrhythmias and Lethality in Muscular Dystrophy Mice” is a research paper that was conducted by Dr. Fraidenraich and his colleagues. Duchenne muscular dystrophy (DMD) is a severe form of muscular dystrophy that is life threatening and associated with muscle degeneration. It affects many newborn males, meaning that it is caused by an X-linked mutation. This mutation leads to the absence of a very important protein called,…

Muscle contraction is made possible when an action potential is propagated from a motor neuron to a muscle fiber. This occurs at the neuromuscular junction, where the neuron innervates the muscle fiber. One nerve can innervate thousands of muscle fibers, allowing for an entire muscle to contract. At each neuromuscular junction, muscle tissue (an excitable tissue) is able to receive an electrical signal from the motor neuron and propagate it further. As the electrical signal reaches the terminal…

The junction in “Hills Like White Elephants,” is symbolic of the crossroad where Jig must decide whether or not to have the abortion. If she goes to one side of the track, she is choosing the path with the American and continues with the operation, but the other side is choosing to have the baby without the American and the hardships that come with raising a child. “My time over the gap is life.” (Eggers 3) Eggers ' uses the gap in the straightaway to symbolize Steven’s…

consistent patterns of the ECG which occurs in regular intervals. 2. This delay is primarily caused by the atrioventricular node (A-V node) and the adjacent conductive fibres. Conduction in cardiac muscle is hindered by the decreasing number of gap junctions along the pathway of conduction which creates a resistance against the conduction of excitatory ions, i.e. Ca2+, from one fibre to another. This ensures that the atria completely empty the blood into the ventricles before ventricular…

Structure of Tight Junctions and their Dynamic Functions in Health and Disease Tight junction (TJ) discovery in the 1960s helped determine the nature of paracellular transport while the discovery of their constituting proteins subsequently improved understanding of TJs’ dynamic structure. Their role can be appreciated particularly in epithelial cells and when their formation is compromised; I aim to briefly explore the cause of Crohn’s disease to illustrate this. Furthermore, I will outline the…

The First Battle of Bull Run was not only a prelude to the way the Civil War would unfold but it highlighted the importance of intelligence and sound judgment. Bull Run, also known as the First Manassas, was the deadliest ground battle the United States had seen in any war up to that point (McDonald, 1999). The battle came after eleven southern states seceded from the union and pushed out union troops from Fort Sumter, South Carolina. The key mistakes made by the Federalist, Union Army, led…

from its cell body into the surrounding network of nerve fibers. They are a supply of nutrients to neurons, removes excess neurotransmitters, maintain balance of calcium and potassium. B. Oligodendrocytes: have fewer and thinner processes and no gap junctions, unlike astrocytes, that is in tissues of the brain and spinal cord. They support network around CNS neurons. C. Microglia: are found in the CNS in the tissues of the brain and spinal cord. Microglia protects CNS neurons from diseases by…