AVS final exam tophat with 100% correct answers

you are examining a dog's vision. When you shine a light into its left eye, the dog responds to the light by blinking and turning away. However, its left pupil does not constrict in response to the light. In contrast, its right pupil does constrict in response to light in the left eye. Which single lesion (below) can explain all of this examination findings? - correct answer The motor nerve to the muscle that contracts the left pupil is damaged The Optic Nerve, a cranial nerve, is part of the Central Nervous system. - correct answer False When a drug causes tranquilization, it does not actually inhibit the entry of sensory information into the brain. - correct answer True Loss of balance and circling to one side may be caused by damage to; - correct answer both: One of the two balance centers in the inner ear Portion of the left cerebral lobe where balance sensory input is received in the brain Systemic antibiotics would be an effective treatment for; - correct answer A tetanus infection Tetanus Antitoxin is an effective treatment for Tetanus because it; - correct answer Introduces large amounts of pre-made antibodies to soluble Tetanus toxin into the body When you voluntarily decide to walk, the motor control of your walking muscles is; - correct answer Initiated in the cortex as a general instruction, which then triggers a learned sequence of motor impulses that is stored in the cerebellum The ability to know the position of your limbs in space without "peeking" is called; - correct answer Proprioception A mare is three-legged lame (won't put weight on her left hindlimb). This leg seems painful when you try to flex her lower joints, and the soft tissues are warm and seem swollen. Is the problem; - correct answer Musculoskeletal in origin? dairy cow has been lying down for three days and you can only get her to stand using a hoist and sling. You can't elicit a pain response from any of her limbs. When she stands (with support), she seems to be unable to control the legs that she had most recently been lying on top of. She also seems generally weak and a bit uncoordinated. - correct answer A combination of neurological and M/S? A calf has just died from what you think may be White Muscle Disease. What samples would you take to confirm this diagnosis? Select ALL correct answers - there are more than one. - correct answer A piece of a lower leg muscle A chunk of heart tissue A horse has a pronounced limp that you isolate to its left hind limb. You notice that the large muscles of its left and right rump differ in size, with the left rump muscles seeming to be much smaller than the right. The horse is suffering from; - correct answer A neurological injury that occurred months ago he oxidative damage from White Muscle Disease can be prevented by _, which inactivates oxygen free radicals before they can damage the lipid bilayer membranes of muscle cells - correct answer Vitamin E If you looked under a microscope at the growth plate of a Great Dane puppy with epiphysitis, you would find that it had a wider than normal thickness of cartilage that was poorly vascularized. The growth plate would also probably contain numerous micro-fractures. - correct answer T Renal disease can cause hypocalcemia in the bloodstream because - correct answer too much calcium is lost to the urine because it can't be actively reabsorbed from the renal tubules reabsorbed and Excess phosphorus builds up in the blood because the kidneys can't get rid of it fast enough, and this phosphorus starts to combine with calcium to form an insoluble precipitate in the bloodstream A dog has hair loss that appears to be in a symmetrical pattern, but there is no sign of skin inflammation. The dog's skin disease is probably due to: - correct answer A hormonal imbalance For successful wound healing to happen, what is the order of events that needs to occur? - correct answer swelling and increased blood flow to area Initial mitosis of fibroblast cells at the wound edges Immune system responses that render the deeper skin layers free from dead cells and bacteria reestablishment of the skin barrier with a complete layer of fibroblasts over the wound Differentiation and re-layering of the healed skin Atopic dermatitis is a hypersensitivity reaction caused by allergens that enter the body through either the digestive tract of the lungs. - correct answer True Which one of the following would NOT increase the risk of skin / hair disease due to copper deficiency in a cow's diet? (note that this question has no correct answer, as pointed out by an attentive student. Hence, I marked all of the answers correct!). Just pick one, but understand why these are all conditions that could cause copper deficiency. All of these conditions / treatments would reduce copper availability to the animal consuming the forages. - correct answer Adding sulfuric acid to a cow's silage Treatment with limestone to alkalinize soils in a cow pasture Hay grown on soil that is naturally high in molybdenum a dog has patches of persistently inflamed skin that contains lots of bacteria, all of which are normal skin flora. The dog's skin initially responds to antibiotic treatment, but the dog becomes re-infected after a few weeks and needs to be treated again. We know that the bacteria in this dog's skin are susceptible to the antibiotics being used. Which of the following is the PRIMARY cause of this skin condition? - correct answer atopic dermatitis caused by a food allergy An Endemic disease would be something that was recently introduced to a population of animals, and that is just starting to infect large portions of the population for the first time. - correct answer F Any animal with blisters around its mouth, or on other mucous membrane surfaces, should be reported to State authorities as a potential non-native "disease of concern".. - correct answer true