Ticks And Mites Reveiw

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| By Parasitology101

Parasitology101

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Quizzes Created: 4 | Total Attempts: 15,476

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1/9 Questions

A soft tick whose larval and nymphal stages, but not adults parasitize the ear canals of horses is:
- Boophilus
- Argas
- Otobius
- Dermacentor
- Amblyoma

About This Quiz

This quiz is meant to be a review of ticks and mites and to give the student an idea of questions they may see on their exams.

2.

Although it will feed on many different host species, Amblyomma americanum, the lone star tick, prefers to feed on what animal as a larva, nymph, and adult?
- Dog
- Coyote
- Human
- Deer
- Bear
Correct Answer

A. Dog

Explanation

The correct answer is dog. The lone star tick, Amblyomma americanum, is known to feed on various host species, but it has a preference for dogs as a larva, nymph, and adult. This tick species is commonly found in the southeastern and eastern parts of the United States and can transmit diseases to its hosts, including humans and animals.

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2
3.

Trombicula mites (chiggers) feed on their hosts by:
- Burrowing beneath the surface of the skin for several days
- Forming a stylostome (feeding tube) to penetrate through the epidermis so that host tissue fluid can be imbibed
- Slashing the surface of the skin and expressing anticoagulants into the wound, then rapidly imbibing the pooled blood
- Directly ingesting dander and hair from the superficial-most area of the skin
- None of the above
Correct Answer

A. Burrowing beneath the surface of the skin for several days

Explanation

Trombicula mites, also known as chiggers, feed on their hosts by burrowing beneath the surface of the skin for several days. During this time, they create a stylostome, which is a feeding tube that penetrates through the epidermis. Through this tube, the mites can imbibe host tissue fluid. This process allows the mites to obtain nourishment from their host. The other options mentioned, such as slashing the skin and ingesting blood or directly ingesting dander and hair, are not accurate explanations for how chiggers feed.

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4.

What ticke genus in the US is most commonly associated with tick paralysis?
- Ixodes
- Rhipicephalus
- Haemaphysalis
- Ornithodorus
- Dermacenter
Correct Answer

A. Dermacenter

Explanation

Dermacentor is the correct answer because it is the tick genus most commonly associated with tick paralysis in the US. Tick paralysis is a condition caused by the neurotoxin released by certain ticks, and Dermacentor ticks are known to transmit this toxin to humans and animals. Other tick genera listed in the options, such as Ixodes, Rhipicephalus, Haemaphysalis, and Ornithodorus, may also transmit diseases but are not specifically associated with tick paralysis.

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1
5.

Which of the following mite is least commonly found on cats?
- Notodres
- Sarcoptes
- Demodex
- Cheyletiella
- Otodectes
Correct Answer

A. Demodex

Explanation

Demodex is the least commonly found mite on cats. Demodex mites are microscopic parasites that live in the hair follicles and sebaceous glands of mammals. While they are commonly found on dogs, they are rarely found on cats. Demodex infestations in cats are considered rare and usually occur in cats with weakened immune systems or other underlying health issues. Therefore, Demodex is the correct answer as it is the mite that is least commonly found on cats compared to the other options provided.

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6.

Which of the following mites causes a nodular dermatitis due to greatly dilated hair follicles containing large numbers of mites in individual pigs, goats or cattle:
- Psorptes
- Sarcoptes
- Chorioptes
- Demodex
- Trombicula
Correct Answer

A. Chorioptes

Explanation

Chorioptes mites cause a nodular dermatitis due to greatly dilated hair follicles containing large numbers of mites in individual pigs, goats, or cattle.

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7.

Although, exceptions occur, most hard ticks in North America have a life cycle that is described as:
- One-host
- Two-host
- Three-host
- Multiple-host
- Free-living
Correct Answer

A. Multiple-host

Explanation

Most hard ticks in North America have a life cycle that involves multiple hosts. This means that they go through different stages of their life cycle on different hosts. For example, the tick may attach to a host to feed and then detach to molt and develop further on a different host. This cycle may continue with multiple hosts until the tick reaches its adult stage. However, it is important to note that there can be exceptions to this pattern, as some hard ticks may have a different life cycle.

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1
8.

Secondary infections can occur following any arthropod bite. However, what two ticks in North America have long mouth parts that cause a particularly deep wound, thus increasing the likelihood that a secondary infection will occur at the bite site?
- Rhipicephalus
- Ixodes
- Dermacentor
- Haemaphysalis
- Amblyomma
Correct Answer(s)

A. Ixodes
A. Amblyomma

Explanation

Ixodes and Amblyomma ticks in North America have long mouth parts that can cause a particularly deep wound when they bite. This deep wound increases the likelihood of a secondary infection occurring at the bite site.

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9.

Which two of the following mites of large animals (cattle, sheep, and goats) are extremely contagious and cause the most severe disease in infested animals, and thus are the most important to accurately diagnose and report to the state and federal authorities:
- Trichodectes
- Sarcoptes
- Demodex
- Chorioptes
- Psorptes
Correct Answer(s)

A. Trichodectes
A. Demodex

Explanation

Trichodectes and Demodex are two types of mites that infest large animals such as cattle, sheep, and goats. These mites are extremely contagious and can cause severe diseases in the infested animals. Accurate diagnosis and reporting of these mites to state and federal authorities are crucial because they pose a significant risk to the overall health and well-being of the animal population.

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Current Version
Mar 21, 2023

Quiz Edited by
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Mar 17, 2010

Quiz Created by
Parasitology101

Ticks And Mites Reveiw

A soft tick whose larval and nymphal stages, but not adults parasitize the ear canals of horses is:

Quiz Preview

Although it will feed on many different host species, Amblyomma americanum, the lone star tick, prefers to feed on what animal as a larva, nymph, and adult?

Trombicula mites (chiggers) feed on their hosts by:

What ticke genus in the US is most commonly associated with tick paralysis?

Which of the following mite is least commonly found on cats?

Which of the following mites causes a nodular dermatitis due to greatly dilated hair follicles containing large numbers of mites in individual pigs, goats or cattle:

Although, exceptions occur, most hard ticks in North America have a life cycle that is described as:

Secondary infections can occur following any arthropod bite. However, what two ticks in North America have long mouth parts that cause a particularly deep wound, thus increasing the likelihood that a secondary infection will occur at the bite site?

Which two of the following mites of large animals (cattle, sheep, and goats) are extremely contagious and cause the most severe disease in infested animals, and thus are the most important to accurately diagnose and report to the state and federal authorities: