VTNE PREP COMBINED, AAVSB Practice Tests with Certified Solutions

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VTNE PREP COMBINED, AAVSB Practice Tests with Certified Solutions The pressure in the systemic arteries during ventricular contraction is: (a) Diastolic blood pressure (b) Osmotic pressure (c) Sy ... stolic blood pressure (d) Low pressure ✔✔(c) Systolic blood pressure In what order does the impulse for depolarization travel through the heart? (a) AV node, SA node, bundle of His, Purkinje fibers (b) SA node, AV node, bundle of His, Purkinje fibers (c) SA node, AV node, Purkinje fibers, bundle of His (d) AV node, SA node, Purkinje fibers, bundle of His ✔✔(b) SA node, AV node, bundle of His, Purkinje fibers The muscular sphincter located between the stomach and the duodenum is the: (a) Pylorus (b) Cardia (c) Chyme (d) Rugae ✔✔(a) Pylorus When a stimulus is strong enough to cause complete depolarization, it has reached: (a) Threshold (b) Repolarization (c) Refractory period (d) Action potential ✔✔(a) Threshold Smooth muscles can be found in the: (a) Heart (b) Stomach (c) Pelvic limb (d) Diaphragm ✔✔(b) Stomach On inspiration, the pressure in the thoracic cavity, as compared with ambient air pressure, is (a) Negative (b) Positive (c) Same as the ambient air pressure (d) Fluctuating ✔✔(a) Negative The cranial nerves originate from the (a) Cerebellum (b) Spinal cord (c) Brainstem (d) Cerebrum ✔✔(c) Brainstem In dairy cattle, the teats and udder are gently washed before milking to stimulate the release of one of the following, to stimulate milk letdown (a) Adrenalin (b) Norepinephrine (c) Dopamine (d) Oxytocin ✔✔(d) Oxytocin Typically, what percentage of an animal's body weight consists of blood? [Show More]

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