CNS SAQs PDF

**Basal ganglia** **Enumerate functions of basal ganglia?** **Describe role of caudate circuit in controlling cognitive control of motor actions?** **Describe role of putamen circuit in motor actions?** **Types of neurotransmitters in basal ganglia?** **Explain role of diffuse stimulation of ba...

**Basal ganglia** **Enumerate functions of basal ganglia?** **Describe role of caudate circuit in controlling cognitive control of motor actions?** **Describe role of putamen circuit in motor actions?** **Types of neurotransmitters in basal ganglia?** **Explain role of diffuse stimulation of basal ganglia on muscle tone?** **Cerebellum** **Enumerate 4 manifestations of Motor ataxia?** **Enumerate 2 Functions of spinocerebellum (paleocerebellum)?** **Enumerate 2 Functions of vestibuloocerebellum (archicerebellum)?** **Enumerate 2 Functions of cerebrocerebellum (neocerebellum)?** **Mention 3 motor dysfunctions in neocerebellar syndrome?** **Retina** Enumerate layers of the retina? Enumerate characters of fovea centralis? Mention 2 differences between rods and cons **Optics** Enumerte functions of aqueous humor Enumerate function of choroid **Hearing** **Define tympanic reflex (attenuation reflex) and its importance?** **Describe functions of bony ossicles?** **Function of auditory sensory area (41&42)?** **Maintenance of Equilibrium** **What are effects of stimulation of semicircular canals?** **Describe 4 connections from vestibular nucleus?** **Sleep & RAS** **Acessnding reticular activating system:** A. Consciousness B. Its stimulation produce sleep C. Pain inhibition D. Decrese muscle tone **During sleep:** A. Reduction of muscle tone B. Decrease basal metabolic rate C. Increase urinary blood flow D. All of the above **Mechanism of sleep is due to the following except:** A. Fatigue of ascending reticular formation neurones B. Serotonin secretion from Rhfe nuclus C. Secetion of melatonin from pineal body D. Exitatory stimuli from skeletal muscle **Nightmares during rem sleep is due to:** A. Heavy diet befor sleep B. Brain activity is present C. Brain is inactive during rem sleep D. Decrese periods of Non rem sleep **Night walk and non remembered dreems:** A. Occurs during stage one NREM sleep B. Occurs during REM sleep C. During Stage two NREM sleep D. Due to Depresion of brain activity **SAQ** 1-Enumerate 3 changes of the body during sleep 2-Effect of sleep on endocrine systems