NUMS MDCAT 2024 PAPER NUMS 2024 ( PART 4 ) 1. During the conduction of nerve impulse, hyper polarization would not occur if: Sodium potassium pump stopped working Potassium gates were not so lousy Calcium gates open instantly Sodium gates didn’t close in time 2. Which of the following Is a characteristics of electrical synapse Absence of neurotransmitter Transmission of nerve impulse Sodium potassium gradient Presence of neurotransmitters 3. Which option given below characterizes refractory period Membrane potential +50mV Reversal of charges across neural membrane Next impulse can be conducted Change in the type of ions across the membrane 4. During complex activity of flight, birds require the coordination of many skeletal muscles. Which part of their brain has.to be well developed Thalamus Cerebrum Cerebellum Amygdala 5. Which part of the brain is actively used by mathematician trying to formulate a new equation Pons Hippocampus Amygdala Cerebrum 6. A desert mammal faces severe dehydration In a hot sunny day. Which internal condition would lead to secretion of ADH Low solute potential of blood High osmotic pressure of blood Low osmotic pressure of blood High blood pressure 7. Which disorder would be diagnosed by a doctor on seeing a patient with thick end dry skin; puffy eyes and low metabolic rate Cretinism Addison disease Myxedema Cushing syndrome 8. Choose the one related to hypoparathyroidism: Kidney stones Hypercalcemia Tetany Weakness of muscles 9. Choose the mismatched pair: LH – Ovulation Estrogen – inhibits FSH ICSH – interstial cell Graffian follicle – progesterone 10. Which of the following is an example of negative feedback mechanism Aggregation of platelets during would healing Milk secretion during suckling Labour contraction Control of body temperature Loading … Pages: 1 2 3 4 5 6 7 8 9 10 11 12
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