P2 There are two different types of epithelial tissue these are simple and compound. Simple Epithelium- this type of epithelium tissue is from an animal consisting of one of more layers of closely packed cells. The cells can vary in structure depending on their function which may be protective, secretory or absorptive. This epithelium tissue covers external and internal surfaces of the body. Compound Epithelium – this type of epithelial tissue is made to withstand wear and tear.
Ciliated Columnar Epithelium are simple columnar epithelial cells but they have fine, hair like cilia on their free surfaces. These cilia are capable of rhythmic, rapid wavelike beatings in a certain direction. This movement causes mucus, secreted by the goblet cells, to move in the same direction. They are usually found in air passages like the nose. It's also found in the uterus and fallopian tubes.
The type IIb fibers are the most fatigable out of all the fibers but also generate the most power and force, and therefore are the fastest twitch muscles fibers. These types of fibers are recruited in activities that require an all out burst of power and only act for an extremely short period of time, as the total length of their contractions usually last only 7.5 milliseconds. In terms of general recruitment, they are also the last to be recruited. For example, upon normal activities, slow twitch fibers are recruited first, followed by type IIa when the type I can no longer
When making connections it is so much easier to splice the copper cable than it would be for the fiber. Copper cables are also very flexible; you can have your wire go wherever without cracking or breaking. As for the disadvantages, all the advantages of the fiber are the downfall of the copper cabling. People want faster, better, farther. So, over time, we will lose the copper cables and move onto the
In other words, neurotransmitters are the messages that nerve cells send out, and they cross the gaps between each of the cells. When released by the sending neuron, neurotransmitters travel across the synapse and neuron. Therefore, they influence whether that neuron will generate a neural impulse or not. B) An agonist mimics neurotransmitters functions by binding to receptor sites and stimulating the sending neuron. C) An antagonist does the opposite of agonist.
Stimuli’s are what transfers to the brain. The brain is dependent on neurotransmitters to send signals for one part of the brain to another part. The neurotransmitters are let go or released by nerve cells, which is what helps in carrying out cognitive functioning. When brain cells are damaged
However, most of these drugs can cause side-effects, particularly the stronger painkillers. They don’t cure fibromyalgia and don’t usually get rid of all the pain. It’s important to discuss the best balance between pain relief and side-effects with your doctor. There are things you can do to manage the symptoms associated with fibromyalgia. Research has shown that exercise reduces the pain and fatigue.
The cochlea is full of liquid and lined with cells that have tiny hair cells on them which are the start of the auditory nerve. The vibrations make ripples in the liquid that is in the cochlea and the ripples move the very tiny and sensitive hair cells. The hair cells carry this information through the auditory nerve to the brain which then interprets what we actually hear. The semicirular canals control our balance, each of the three canals sense a different movement ie; upwards, downwards, sideways. If we spin around quickly the fluid in these canals moves around quickly and if we then stop we can feel slightly dizzy until the fluid settles down again in the canals.
Even though the machine exercises are thought to be safer to use to some extent, they are restricted in most movements, which could later lead to injury, because they are not natural moves of the body. The traditional exercise machines isolate the muscle groups that they are being worked rather than working many at one time, such as functional. The traditional exercises would include the weight stack machines, the squats, bench press, etc. Some of the functional exercises include various different movements such as medicine ball overhead squats, band internal/external rotations, to balancing on the BOSU ball. All of the exercises are specific to ones doing, “athletes should train for the sport they play and focus on the best training activities that mimic their respective sports' movements.” Also the functional training is more recommended for patients rehabilitating after stroke.
During working time, they tend to make quite some noise and cheap stepper motors can be especially noisy [2]. The extruder is the part that thrusts out and feeds the plastic filament into the ‘hot-end’. Extruders are typically incorporated into the hot-end, however in some types it can be remote, pushing the filament through a tube, called a Bowden cable, into the hot-end. In some types a dual extruder is also used, which provides the ability to print two different materials at the same time[4]. This result in increased price, as it requires an extra extruder, and hot