ANSC 440 Final (Student Presentations) Exam Questions and Complete Solutions.

ANSC 440 Final (Student Presentations) Exam Questions and Complete Solutions Symptoms of BSE - Correct Ans: Hyperesthesia, nervousness, reluctant to be milked, aggression, low head carriage, weight loss and decreased milk production BSE is caused by what - Correct Ans: A foodborne exposure to prions via contaminated animal-source proteins What species is BSE seen in mostly - Correct Ans: Dairy cows What is the incubation period - Correct Ans: 2 to 8 years What part of the anatomy is affected by BSE - Correct Ans: The brain, spinal cord, and neurologic tissue What do the prions do in BSE - Correct Ans: induce protein misfolding and gregation What are prions resistant to in BSE - Correct Ans: Heat, freezing, ultraviolet light and chemical disinfectant What are the prions called in BSE - Correct Ans: Beta pleated sheets and are straightened What does the straightened protein strands of the prions cause in BSE - Correct Ans: Gaps or holes giving the tissue a spongy appearance Addison's disease does what to the hormones secreted from the adrenal glands - Correct Ans: decreases them What 2 hormones are secreted from adrenal glands - Correct Ans: Mineralocorticoids and glucocorticoids Who does Addison's affect - Correct Ans: young to middle aged dogs Symptoms of Addison's - Correct Ans: Weakness, dehydration, low blood pressure, depression, heart toxicity, vomiting, blood in feces and weight loss What causes an Addison's crisis - Correct Ans: shock due to inability to adapt to the caloric and circulatory requirements in stress What happens in an Addison's crisis - Correct Ans: Blood sugar may drop low. Potassium levels soar and disrupt heart rhythm. Not enough conserved sodium to exchange for potassium. Heart rate slows. what can cause Addison like symptoms - Correct Ans: Whipworms! Symptoms of Cushing's - Correct Ans: Laminitis, weight loss, ulcers on mouth, excessive thirst and urination, hirsutism, abnormal shedding and infection prone Long term effects of cushing's - Correct Ans: Laminitis, secondary skin infections, weakened immune system and constant weight loss What is Cushing's - Correct Ans: disease of the pituitary gland. Dopamine, a neurotransmitter decreases What does lack of dopamine do in Cushing's - Correct Ans: increases the size of the pituitary gland, which increases ATCH. Overproduction of cortisol from the adrenal gland What is the leading cause of Cushing's - Correct Ans: A tumor on pituitary gland