Pectoral fins are curved back slightly and pointed at the tips. Dolphins use their pectoral flippers mainly to steer. Pectoral flippers have the major skeletal elements of the forelimbs of land mammals, but they are foreshortened and modified. The back fin is like the keel of the boats, that gives stability while they swim and unlike the pectoral fins this one does not have any bony structure, but woven connective fibrous, that gives its form and firmness.

The pectoral fins have the function of the rudder in the boats; it means that they give them the capacity of direction during the swim. The fins are very similar to the arms of the humans, since they are structured in the same way.

Though his fin has straightened to some degree as Keiko's health and conditioning have improved, it will never fully straighten. However, it is not a totally unusual condition and has been observed in wild whales. It does not hamper his swimming or social behavior.

Scientists are not sure why the dorsal fins of some killer whales flop over and the dorsal fins of other do not.The dorsal fins of killer whales are supported only by connective tissue and not bone. In a study of killer whales in New Zealand waters, 23% of the wild males had dorsal fins that bent over. Newborn killer whales all have floppy dorsal fins that stiffen a few days after birth. Scientists have a couple of theories as to why the dorsal fins of some killer whales flop over.

lt;Possibly, but could just be even friendly. Or stranger yet, the newcomer may be female, and Lola may be a mature male. Again, give it some time.>

This is a tough question. A long second dorsal compared to what? Usually,the females second dorsal is shorter than a males. I have heard that they had a female w/ a longer second dorsal, but over 100+ fish my males all seem to have the longer second dorsal.

Full-foot fins are useful when diving in warm waters and snorkeling. They are convenient because you don't need booties with them, nor do you have to worry about losing mask straps. However, if you're going to dive in cooler waters or do beach-entry diving, you should get pocket fins. In cooler waters you need the extra thermal protection of booties, which you cannot wear with full-foot fins. In beach-entry diving, you need the protection booties offer the bottoms of your feet.

While there are fins available for use at the WGAC pool, most swimmers who use them regularly in practice will prefer to have their own. This minimizes wasted time during workouts trying to locate a pair and assures the swimmer there will be a pair that fits. There are no extra fins available at the Forest Park pool, so you will need to bring your own if you are to wear fins. The fins at WGAC are the property of the Fort Worth ISD, not FAST, and they cannot be "borrowed".

A paint pen can be used to mark the swimmer's name on the fin blades in a contrasting color. These pens are readily available at crafts stores.

The F.I.N. (Fleetwood Identification Number) is the serial number Fleetwood uses to identify your motor home. You can find the F.I.N. on the exterior driver sidewall, near the entry door, on a silver sticker. You may also find the F.I.N. on the carrying capacity sheet in the main wardrobe closet. When calling Fleetwood, please refer to the F.I.N. The V.I.N. (Vehicle Identification Number) is the serial number the Chassis Manufacturer uses to identify the chassis of the motor home.

Fins come in two types, full-footed fins and adjustable ones. The full-footed fin is worn directly on your feet while the adjustable one is normally worn with boots. Most people snorkeling in warm waters prefer to wear full foot fins they generally have smaller blades and greater efficiency for less-tiring, cramp-free outings. They are easier to they pack better and are less expensive than adjustable fins.

Full-foot fins are useful when diving in warm waters, diving from most liveaboards and snorkeling. They are convenient because you don't need wet suit boots, nor do you have to worry about breaking a fin strap. However, if you're going to dive in cooler waters or make beach-entries, you should consider open heel fins. For cooler waters you will need the extra thermal protection of booties which you cannot usually wear with full-foot fins because of the smaller size of the foot pockets.

Fishes' fins turn whitish and die back. Fin rot often follows damage or injury. It can also be caused by poor water quality. Remedy: First, fix the water and remove any fin-nipping fish. Change some water (25% is good) and add 1 tsp/gallon salt to promote healing. If bad water quality or an aggressive tankmate was the problem, that should be adequate. Healing will begin within a couple of days. If it worsens, decide first whether it's fungal or bacterial.

Dorsal Column Spinal Cord Stimulator is a specialized device, which stimulates nerves by tiny electrical impulses via small electrical wires placed on the spinal cord. Currently at TPM, Dorsal Column Spinal Cord Stimulator is offered to patients with chronic and severe pain, who have not responded to other treatment modalities. Most of these patients are suffering form RSD/CRPPS or back and leg pain after back surgeries.

Some fins will do this even when properly fitted. An inexpensive solution is to wear an old pair of white cotton ankle socks with the fins. This can be a nuisance during sets where swimmers alternate between fins and no-fins. Neoprene booties are also available but are more expensive. You might find that a different style of fin provides relief. There are also fins available with a soft or neoprene foot pocket for more comfort.

We offer nailing fins too, if the opening accommodates this. In any case, we will provide the most suitable method for We build original Tilt-turns as they are made in Europe. A three-position lever handle effortlessly opens the unit at the top for ventilation, swings it inward for exit or easy and risk free cleaning, or locks it into the closed position. On the practical side, Tilt-turns provide excellent climate control and easy cleaning.

A fin tube, whether baseboard or convector-style, is a heating element, made from copper or steel, for a pipe system. It has square or spiral aluminum “fins” that radiate (distribute) the heat and are low to the floor. Fin tubes replaced radiators in the 1940s and 50s, and were popular before forced air system became common a decade later.

Put the Wavegrinder fin an inch or two back from where you place your typical swept-back, sickle-shaped fin. Both sickle-shaped fins and the Wavegrinder have a center of effort, the location on which the turning force in general acts, in a location such as that depicted below. To be able to compare apples to apples and turning moment to turning moment, the centers of effort should be lined up, as shown, which means its sits a couple of inches back in the box from where you are used to it (1.

Basically it is the best there is. It is clear, forms a consistent shape exceedingly well, and is basically bombproof. Well, maybe not bombproof, but Lexan is a polycarbonate used in bulletproof glass, and in other applications requiring great strength. Many ocean-going boats rely on Lexan for the windows and portlights, as it is capable of standing up to punishing ocean waves..

Not necessarily. Pectoral aplasia is the most frequent skeletal muscle deficiency in the general population, but only 13.5% of the people with this defect have Poland's Syndrome. (Flatt, 1994) No, as a rule, Poland's Syndrome occurs sporadically ("out of the blue") and does not run in families. The risk of recurrence of Poland's Syndrome in the family is minute (1%).

Pectoral Implants are supposed to last your lifetime, but sometimes infection rears its ugly head and your implants must be removed, your infection dealt with and then and only then can discussions be made about re-implantation. The implant itself should last indefinitely without degradation. Although, that can not be said for sure as the pectoral implant is not at least 80 years old. But, in theory and in tests involving silicone -- the material will last a very long time for its indication.

Turn fins are made of metal and are designed to improve turning in one direction. There should only be one installed on the boat.

It is very difficult to predict if the procedure will indeed help you or not. For that reason temporary wires are placed to determine if this device will be effective to relieve your pain or not. Typically, patients will have a 50 to 70 % reduction in their pain.

A dorsal columellar implant is used to augment the dorsum or the height of the nose as well as the tip of the nose. These implants are made of foreign material and are generally not recommended by most plastic surgeons.

In the majority of cases the result is more natural with a softer breast when the implant is placed beneath the muscle. The incidence of capsular contracture (hardening) is also significantly reduced. In certain circumstances it may be advantageous to place the implant in front of the muscle, but these are not common.

Yes, you have the option of having your implants placed partially underneath the pectoralis major muscle with the TUBA technique. Although some doctors may say that it can't be done because they, themselves, have not trained nor have perfected the technique. We know many, many patients who have received sub-pectoral placement with the TUBA approach. The fact of the matter may be the implant placement is more difficult with the TUBA and many surgeons may be unwilling to learn a new technique.

The projectile must be fired into the pipe going into the tee that is smaller than the cross section. Yes. The projectile will travel through any configuration such as knots, but the hose must not be kinked more than 40% to 60% (depending on whether it is hose, tube or pipe). If it is kinked too much, the projectile will stop at that point and the launcher will need to be fired from the other end using air only to remove the projectile from the end it entered.

Yes, if you are participating in the fitness/recreational swim; no, if you are participating in the competitive swim. Water wings and other flotation devices are not allowed.

There are several different varieties of zebrafish... long finned, short finned (the natural wild type), striped (natural) and speckled, as well as albino and "pink" and "blue." All are merely genetic variants of the same species. They can all interbreed and you can do genetic experiments to determine dominance of the various traits. (i.e., are long fins dominant over short fins? etc.)