The double constrictor knot is an even more robust variation that features two riding turns.

If a stronger and even more secure knot is required an extra riding turn can be added to the basic knot to form a double constrictor knot.

The double constrictor may require more careful dressing to distribute the tension throughout the knot.

The boa knot is related to the strangle knot and the double constrictor knot.

For expediency, a series of double constrictor knots, drawn very tight, may also be used.

The posterior belly may arise partly or entirely from the styloid process, or be connected by a slip to the middle or inferior constrictor ; the anterior belly may be double or extra slips from this belly may pass to the jaw or Mylohyoideus or decussate with a similar slip on opposite side ; anterior belly may be absent and posterior belly inserted into the middle of the jaw or hyoid bone.

There are few data on the boa constrictor, those for the anaconda are unconvincing, and there is nothing at all on the amethystine python.

There are also at least three methods to tie the constrictor knot in the bight and slip it over the end of an object to be bound.

In situations where the object leaves gaps under the knot and there are no corners, it is possible to finish the constrictor knot off with an additional overhand knot, in the fashion of a reef knot, to help stabilize it.

There are some reptiles, such as the boa constrictor and komodo dragon that can reproduce sexually and asexually, depending if a mate is available.

In snakes, feet and claws are absent, but in many boids such as Boa constrictor, remnants of highly reduced hind-limbs emerge with a single claw as " spurs " on each side of the anal opening.

The palatopharyngeal folds on each side of the pharynx are brought close together through the superior constrictor muscles, so that only a small bolus can pass.

There are also turtles, fruit bats, spiders and a boa constrictor tank.

Food chains are often far shorter on land, with the top of the food chain limited to the third trophic level, as where such predators as the big cats, crocodilians, hyenas, wolves, or giant constrictor snakes prey upon large herbivores.

Many varieties of orchids, shrubs, thorn trees and animals are found in these regions such as the giant sloth bear, tigrillo, boa constrictor, the endangered American Crocodile, and 111 bird species.

Among the reptiles are: the Boa constrictor, the anaconda ( Eunectes murinus ) and the pineapple cuaima ( Lachesis muta muta ).

These snakes are quite slim and don't have the mass of some of their other constrictor cousins such as the terrestrial Python, Boa and Rat / Corn snake species.

In the case of the boa constrictor, it can create both male and female offspring parthenogenetically.

Despite its advertised advantage ( quick release ), the slipped constrictor knot can also be hard to release when worked extremely tight in certain rope materials.

The constrictor knot is appropriate for situations where secure temporary or semi-permanent binding is needed.

Due to the inferior pharyngeal constrictor muscle, the entry to the esophagus opens only when swallowing or vomiting.

The slipped constrictor can also be tied in the bight and slipped over the object to constrict.

The constrictor knot's severe bite ( which makes it so effective ) can damage or disfigure items it is tied around.

This species is a constrictor, meaning it suffocates its prey, coiling around small animals and tightening its grip until they can no longer draw breath, before eating them.

George Hamilton's 1979 Love at First Bite features Arte Johnson as Renfield, who carries around a large array of creatures, including a boa constrictor, for nourishment.

After executing a DDT, Roberts would coil the constrictor around the opponent's neck, and the snake would slither around on top of the fallen wrestler, sometimes appearing to strangle him.

In addition to subduing its victim with its venom, the brown tree snake often wraps its body around the prey, such as a constrictor, to immobilize the prey while chewing and consuming the animal.

Those recommendations aside, constrictor knots do function best on fully convex objects.

There seems to be a rough correlation between the initial and ultimate lengths, starting with the smallest ( boa constrictor ) and ending with the largest ( anaconda ).

Oliver has recently used the second-level approach with the largest snakes, and has come to these conclusions: the anaconda reaches a length of at least 37 feet, the reticulate python 33, the African rock python 25, the amethystine python at least 22, the Indian python 20, and the boa constrictor 18-1/2.

" Although this clove hitch with knotted ends is a workable binding knot, Burgess was not actually describing the constrictor knot.

Additionally, the larynx is pulled up with the pharynx under the tongue by stylopharyngeus ( IX ), salpingopharyngeus ( pharyngeal plexus — IX, X ), palatopharyngeus ( pharyngeal plexus — IX, X ) and inferior constrictor ( pharyngeal plexus — IX, X ). This phase is passively controlled reflexively and involves cranial nerves V, X ( vagus ), XI ( accessory ) and XII ( hypoglossal ).

The parotid gland comes into contact with the superior pharyngyeal constrictor muscle at the medial border where the anteromedial and posteromedial surfaces meet.

Lindworm ( cognate with Old Norse linnormr ' constrictor snake ', Norwegian linnorm ' dragon ', Swedish, lindorm, Danish, lindorm ' serpent ', German Lindwurm ' dragon ') in British heraldry, is a technical term for a wingless bipedal dragon often with a venomous bite.

The recurrent laryngeal nerve enters the pharynx, along with the inferior laryngeal artery and inferior laryngeal vein, below the inferior constrictor muscle to innervate the Intrinsic Muscles of the larynx responsible for controlling the movements of the vocal folds.

The old logo of the sign was the famous illustration from Antoine de Saint-Exupéry's The Little Prince of a boa constrictor swallowing an animal ; however, later it was replaced with original design as the site became something more than a personal hobby Web page.

Afterwards, Talon saves Alana from a giant constrictor snake, but Xusia suddenly rises again, prompting Talon to finish off the sorcerer with a blade concealed in his gauntlet.

For four of the six ( the anaconda and the amethystine python cannot be included for lack of data ) there is also a correlation between size at maturity and maximum length, the boa constrictor being the smallest and the Indian python the next in size at the former stage.

A constrictor knot prepared for tightening using two metal rods and marlinespike hitch es

Noted master-rigger Brion Toss says of the constrictor: " To know the knot is to constantly find uses for it …"

Several thousand snakes of five breeds — including a boa constrictor — were used for the train scene, in addition to rubber ones onto which Phoenix could fall.

A constrictor knot prepared for tightening using two rods and marlinespike hitches

The lower part of the inferior constrictor ( cricopharyngeus ) is normally closed and only opens for the advancing bolus.

Generally, the word lindworm stood for the Latin word draco ( whence Norse dreki ), thus could refer to any draconic creature, from a real life constrictor snake to a legendary dragon.

Many species of snakes have been proposed for it, and Richard Lancelyn Green concludes the Indian Cobra ( Naja naja ) is the snake which it most closely resembles, rather than Boa constrictor, which is not venomous.

It is uncommon for a constrictor snake that knows the person handling it to strike and constrict the person, as they would a food item, unless the snake is very agitated.