Once food is in the goldfish’s mouth, it’s pushed to the back of the throat where a set of teeth grind and crush it. The ground down food passes down a tube called the oesophagus, which squeezes out excess water. The oesophagus is lined with taste buds and cells that produce mucus to keep things moving on. The oesophagus empties into an expandable section of the goldfish’s digestive which is not to be confused with the stomach. It is simply a buffer zone to hold excess food as needed. Just before this expanded section, chemicals from the gallbladder and pancreas are pumped in with the food. The ones from the gallbladder make up bile, which is used to break down fats; the ones from the pancreas contain enzymes that are used to break down proteins. All along the digestive tract are cells that secrete enzymes that act on carbohydrates, breaking them down into sugars. From the expanded section to the goldfish’s anus, lots of mucus is produced and as much useful material as possible is absorbed into the bloodstream to be used for energy, growth, protection and repair.
Goldfish get their oxygen from water. As a fish swims, it gulps up water. The water which has oxygen goes through an opening in the fish’s throat that leads to the gills. Gills have many blood vessels within them. Oxygen moves from the water to the blood as the water flows over the gills. The blood vessels gather and store the oxygen that travels over the gills. At the same time, carbon dioxide moves out of the blood and into the water. Now, the water flows out of the slits beneath the gills. These gills are located under the operculum.
The circulatory system of fish is responsible for transporting blood and nutrients throughout the body. Blood travels across the body through the network of blood vessels. Unlike humans, fish have single cycle circulation, where the oxygen-deprived blood comes to the heart, from where it is pumped to the gills and then circulated to the entire body. The circulatory system of fish consists of a heart, blood and blood vessels. The heart of a fish is a simple muscular structure that is located between the posterior gill arches. In most fish, the heart consists of an atrium, a ventricle, a sac-like thin walled structure known as sinus venosus and a tube, known as bulbus arteriosus. In spite of containing four parts, the heart of a fish is considered two-chambered. The blood contains plasma (the fluid portion of blood) and the blood cells. The red blood cells contain hemoglobin, a protein that facilitates the transport of oxygen to the entire body, while the white blood cells are an indispensable part of the immune system. The thrombocytes help in blood clotting. Blood is circulated throughout the body with the help of arteries and veins (blood vessels). The arteries are responsible for carrying oxygenated blood from the heart to the rest of the body, while the veins return deoxygenated blood from the different parts of the body to the heart.
The skeletal system of a goldfish is mainly to protect the goldfish, support its structure and leverage, and helps with its red blood cell production. A goldfish’s skeletal system is made of almost all small bones and cartilage and it barely has any big bones. The bones are made of almost all calcium. There are 3 main muscles in a goldfish’s muscular system, the tail and trunk muscles, the jaw muscles, and the fin muscles. In the tail and trunk muscles, there are myotomes which are muscles blocks and there are myosepta which are connective tissues that separate myotomes. The horizontal septum separates myotomes into two sections, ventral or dorsal. In the jaw muscles, the goldfish uses adductor muscles to close its jaw and abductor muscles to open its jaw. In a gold fish’s fin muscles, there are also adductor and abductor muscles. These muscles move a gold fish’s fins away from and close to its body. There are also erector muscles in the fins that help with the stability and flexibility of the fish’s fins.
Goldfish have a memory-span of at least three months and can distinguish between different shapes, colors and sounds. With positive reinforcement, goldfish can be trained to recognize and treact to light signals of different colors or perform tricks. Fish learn to anticipate feedings provided they occur at around the same time every day.
Premature ejaculation
Premature ejaculation (also known as PE) is a condition affecting many men. It is when during sexual intercourse (sex) the male can not stop himself from ejaculating after starting sex.
The condition is usually curable or at least treatable by a few exercises. (There are more exercises than these, however, these are the most common.)
One exercise is to create an erection and begin to lose it, then stimulate it again. This exercise is best done alone at first and then with a partner. Thrusting should not be used with a partner until very near the end of treatment. This treatment may take several weeks to fully cure the problem if it is used properly.
Another treatment involves using the muscle which stops urine. To locate the muscle, simply begin urinating and stop quickly before emptying the bladder. Doing that, will demonstrate how to use the muscle. Then whenever convenient use the muscle. You do not need to be urinating to use the muscle and it is suggested you are not. After a few weeks of both these treatments, the PE will become more like traditional ejaculation and after about one and a half to two and a half months, it should be absolutely normal.
Witch
A witch is a person who practices witchcraft or magic. Traditionally, the word was used to accuse someone of bewitching someone, or casting a spell on them to gain control over them by magic. It is now also used by some to refer to those who practice various wise crafts such as Hedge witch. Witches usually used spells for personal gain.
Although most indigenous peoples throughout history have had some beliefs about spirits and people believed to have power through herbs or spirits, these were not called 'witches' until contact with western ideas. Neither did they always have negative connotations.
In Europe, the panic over witchcraft was supported by the "Malleus Maleficarum", published in 1487 by Heinrich Kramer, a German Catholic clergyman. It taught the prosecution of witches and was greatly promoted by the new technology of the printing press. It saw 29 printings before 1669, second only to the Bible. The book says that three elements are necessary for witchcraft. These are the evil intentions of the witch, the help of the Devil, and the permission of God.
Many women in South America and throughout Europe were killed by witch hunts. The exact number is debated because of a lack of record keeping and different opinions on the time frames and regions that ought to be included. Since the entire persecuting legal system, "judges, ministers, priests, constables, jailers, judges, doctors, prickers, torturers, jurors, executioners" were nearly all male and the victims were overwhelmingly female, the witch hunts are considered by many to be a "gynocide". In the documentary "The Burning Times", Thea Jensen calls this period in history a "Women's Holocaust".
In the 20th century, a new attempt has been made at understanding witchcraft. Many people say that witches were in fact wise women who were hunted down by the church (mostly for their knowledge of herbs to treat certain diseases). This has led to a new movement. Some of it is known as Wicca.