Pathology: Skeletal Muscle L2

What are the four clostridial diseases affecting skeletal muscle?

What is the primary cause of black leg in cattle?

Which gross lesions are associated with black leg?

What is a unique feature of black leg upon palpation?

How does Clostridium chauvoei cause black leg?

What are some common factors associated with black leg outbreaks?

Which type of myositis is caused by Clostridium chauvoei or Clostridium septicum?

Match the types of myositis to its associated cause

What type of inflammation is characteristic of Wooden Tongue?

How does Actinobacillus lignieresii infect the tongue?

What histological feature is characteristic of Wooden Tongue?

The red material observed in histology of Wooden Tongue is believed to be:

Masticatory myositis is an example of what type of disease?

Which muscles are primarily affected in masticatory myositis?

What is the underlying immune mechanism of masticatory myositis?

What is a common morphological diagnosis (MDx) for masticatory myositis?

What is a key clinical sign of extraocular polymyositis?

What causes exophthalmus in extraocular polymyositis?

Which breed is predisposed to extraocular polymyositis?

What is polymyositis?

Which generalized immune-mediated disease can be associated with polymyositis?

In dogs, polymyositis may occur in association with what type of tumor?

What is the predominant histological feature of polymyositis?

What causes purpura hemorrhagica in horses?

Which bacterial infection is primarily associated with purpura hemorrhagica?

What is the primary pathological consequence of purpura hemorrhagica?

Which of the following is NOT a characteristic feature of purpura hemorrhagica?

Clostridial myositis in horses is most commonly associated with what event?

Which bacterial species is most commonly responsible for clostridial myositis following an injection?

What are the primary pathological findings in clostridial myositis?

What is a possible fatal consequence of clostridial myositis?

What is the morphological diagnosis (MDx) for clostridial myositis?

What is another cause of green appearance to muscle?

What is a key histological feature of Sarcocystis infection in muscle?

Sarcocystis cysts can sometimes be seen grossly in muscle

What is the morphological diagnosis (MDx) for Cysticercus (Taenia) infection in skeletal muscle?

What is the intermediate host for Taenia species that develop into Cysticercus in skeletal muscle?

How do humans acquire Trichinella infection?

What is a major public health concern associated with Trichinella infection?

What happens when Trichinella larvae die in muscle tissue?

To what temperature should meat be cooked to prevent Trichinella infection?

What is the primary cause of muscle damage in Downer Cow Syndrome?

Which gross lesion is characteristic of Downer Cow Syndrome?

Which of the following can cause a lesion similar to Downer Cow Syndrome?

What is the primary mechanism leading to deep pectoral myopathy?

Which of the following factors predisposes animals to deep pectoral myopathy?

Fill in the sequence of events for the pathogenesis of deep pectoral myopathy: Rapid muscle growth → __________ → muscle swelling →__________ → ischemia → _____________

What is another name for Myofibrillar Hypoplasia?

What is the primary clinical sign of Myofibrillar Hypoplasia in neonates?

What is the morphological diagnosis (MDx) for Swimmer’s Syndrome?

What is the expected outcome for most neonates with Swimmer’s Syndrome?

What is the primary cause of Double Muscle condition?

What is the function of myostatin protein in muscle development?

What happens when the MSTN gene is inactivated?

Which of the following is a potential issue in animals that are homozygous for an inactive myostatin gene?

What is the morphological diagnosis (MDx) for Double Muscle condition?

What are common causes of myocyte hypertrophy?

What is required for satellite cells (resting myoblasts) to divide?