Snake anatomy quiz

1

The Jacobson's organ in snakes play a role in...?

	detecting low airborne frequency sound
	propulsion of semen during copulation
	producing and storing venom in some species
	the shedding cycle and growth
	vomeronasal chemoreception
Please select an option Incorrect! The Jacobson's organ, or vomeronasal organ, is a sensory organ, but it is involved in chemoreception and not sound. WikiVet Article: Snake Special Senses. Incorrect! The Jacobson's organ, or vomeronasal organ, does not play a role in reproduction. It forms part of the chemosensory system in snakes which is analagous to 'taste' WikiVet Article: Snake Special Senses. Incorrect! The Jacobson's organ, or vomeronasal organ, is a snake 'special sense'. It forms part of the chemosensory system which is analagous to 'taste' WikiVet Article: Snake Special Senses. Incorrect! Also known as the vomeronasal organ, the Jacobson's organ forms part of the chemosensory system in snakes, not the endocrine system. Scent particles picked up from the surroundings by the tongue are conveyed to the palate, to pass up through a duct to the Jacobson's organ for 'tasting'.WikiVet Article: Snake Special Senses. Correct! Also known as the vomeronasal organ, the Jacobson's organ forms part of the chemosensory system in snakes which is analagous to 'taste' WikiVet Article: Snake Special Senses.

2

What are the gastrosteges of snakes?

	A single row of large ventral scales in that assist in locomotion
	Cutaneous appendages at the base of the tail that play a role in defense
	Clear scales that cover the eyes and are shed during ecdysis
	Fangs in vipers and pit vipers that fold caudodorsally and are sheathed when the mouth is closed
	Infrared–sensitive receptors that allow them to ‘see’ the radiated heat of their prey
Please select an option Correct! Gastrosteges are enlarged ventral scales on the body which aid locomotion. The number of gastrosteges may be used in snake identification WikiVet Article: Snake Skin. Incorrect! These cutaneous appendages are known as Hemepenes. Gastrosteges are enlarged ventral scales on the body which aid locomotion WikiVet Article: Snake Skin. Incorrect! Scales that cover the eyes are called spectacles (also ocular scale, eye cap and brille). Gastrosteges are the enlarged ventral scales on the body which aid locomotion WikiVet Article: Snake Skin. Incorrect! This snake dentition is known as solenoglyphous. Gastrosteges are enlarged ventral scales on the body which aid locomotion. The number of gastrosteges may be used in snake identification WikiVet Article: Snake Skin. Incorrect! These receptors occur in the labial pits of boids and pythons, and the heat pits of pit vipers and are used to located warm-blooded prey. Gastrosteges are enlarged ventral scales on the body which aid locomotion WikiVet Article: Snake Skin.

3

The caudal third of a snake does not contain which of the following?

	Kidneys	300x225px\|Question's Image
	Liver
	Pancreas
	Small intestine
	Spleen
Please select an option Incorrect! Gastrosteges are enlarged ventral scales on the body which aid locomotion. The number of gastrosteges may be used in snake identification WikiVet Article: Snake Skin. Incorrect! These cutaneous appendages are known as Hemepenes. Gastrosteges are enlarged ventral scales on the body which aid locomotion WikiVet Article: Snake Skin. Incorrect! Scales that cover the eyes are called spectacles (also ocular scale, eye cap and brille). Gastrosteges are the enlarged ventral scales on the body which aid locomotion WikiVet Article: Snake Skin. Incorrect! This snake dentition is known as solenoglyphous. Gastrosteges are enlarged ventral scales on the body which aid locomotion. The number of gastrosteges may be used in snake identification WikiVet Article: Snake Skin. Incorrect! These receptors occur in the labial pits of boids and pythons, and the heat pits of pit vipers and are used to located warm-blooded prey. Gastrosteges are enlarged ventral scales on the body which aid locomotion WikiVet Article: Snake Skin.