Gap junction

Introduction Orthodontic treatment has been a very popular option used in restoring both function and esthics. A high surge of these treatments has been increased 100% in fold since 1982 [ortho1]. Most orthodontic patients that seek treatment have been between the ages 6-18 years, estimated to be four million, whereas one million adult patients seek orthodontic treatments in North America [ortho1]. There is an estimated 17-43% of objective juvenile patients in need of orthodontic treatment…

The blood vessels aid in blood flowing to body tissue, maintaining blood pressure, and controlling blood volume using resistance. A special characteristic of the heart is its ability to self excite itself. The heart is self excitable because of gap junctions and the composition and structure of the intrinsic cardiac condition system. Noncontractile cardiac…

Due to the recent uprise in pop culture and tv crime shows such as CSI: Crime Scene Investigation, and books like The Girl With The Dragon Tattoo, the field of Computer Forensics is no longer being put on the back burner. According to many popular news outlets such as Forbes and Newsweek, the field of Computer Science is expected to grow exponentially, leaving the the specialty of Forensic Science the need to adapt with it. As long as technology has been at the base of human fingertips,…

Except creating new travel patterns for people, developed infrastructure increases operational opportunities for firms (Banister D., Berechman J., 1999). There are for example products that have to be transported within few hours and be available at certain radius. Providing firms with new transport options help them to expand and ensure their output is vastly available on the commercial market. Improved infrastructure increases potential output of the factory and makes production more…

Daniel Huang Chapter 9 1. Mutations can be very negative in that it can cause cancer in somatic cells. However it is important to note that mutations will also lead to variability which is beneficial to us. Mutations in intergenic DNA affects regulations of protein products which is actually less detrimental than mutations in exons which code for the proteins. 2. Transition is the error that causes the base to change from a purine to purine or pyrimidine to pyrimidine. Transverses are base…

Needle should be directed towards ipsilateral nipple, angle of insertion should be about 30-45º SUBCLAVIAN VEIN ANATOMICAL LANDMARK Site of needle insertion is 1 cm inferior to the junction of the middle and medial third of the clavicle at the deltopectoral groove. Approach Supraclavicular - is not preferred because of high incidence of pneumothorax Infraclavicular - is the most common approach. POSITION Supine with…

synapses - neuroreceptors are enzymes that are bound to the membrane. When activated, they catalyse (cause or accelerate) the 'messenger chemical', which can have an affect on the sensitivity of the ion channel receptors in the cells. Neuromuscular junctions - synapses formed between motor neurones and muscle cells. Electrical synapses - the membranes of the two cells actually touch and they share proteins. The action potential can pass directly from one membrane to the…

actions of the eye etc. and the back forth signaling between the brain and the nerve cells helps the brain to carry the right action. Action potentials are housed by neuron structures which are made up of axons and dendrites. The synapses is the little gap between neurons across which they communicate with neurotransmitters. Every neuron usually has only one axon which can be short or long leaving the cell body however some of them can have many branches. The cell body receives…

Your brain is permeated by a vast network of tiny little blood vessels, or capillaries as they are called. These are extremely small and thin so that blood cells can pass through them in a single file line. There are so many capillaries in one brain that you could lay them out and fill an average sized living room full of them. These capillaries that are located in the brain are surrounded by a single layer of cells. The layer of cells forms a type of barrier separating the capillaries and the…

that much history of this grand civilization was destroyed during the Spanish Conquest of 1519 led by Hernan Cortes and his populous army of men. However, through archaeological explorations, the remains of the Mexica have allowed us to fill in the gaps in our historical timeline and give us insight into their way of life. I contend that artifacts that were uncovered in El Templo Mayor are indicators that demonstrate the significance…