UMass Amherst KIN 460 - KIN460F2018 Exam 2 practice questions (2 pages)

Name KIN 460 Practice questions Exam 2 A Multiple Choice questions circle 1 point each 1 Which of the following represents the most direct pathway for the transmission of visual information from the eye to the brain a Photoreceptor bipolar cell ganglion cell visual cortex b Horizontal cell bipolar cell ganglion cell visual cortex c Horizontal cell bipolar cell amacrine cell visual cortex d Photoreceptor ganglion cell horizontal cell visual cortex e Photoreceptor ganglion cell visual cortex 2 The best description of the function of the lens is a Regulate the amount of light entering the eye b Refraction of light onto the retina c Refraction and accommodation d Accommodation and regulation of light intensity e Provide nourishment for photoreceptors 3 The iris a Is responsible for the refraction of light onto the retina b Regulates the amount of light entering the eye c Applies tension to the lens d Contains the pigment epithelial cells that nourish photoreceptors e Covers the entire cornea shielding it from harmful UV rays 4 Glaucoma of the eye results in a Floaters in the vitreous humor b Loss of cone photoreceptors c Increased ocular pressure due to reduced drainage in the aqueous humor d Loss of rod photoreceptors e Increased ocular pressure due to reduced drainage in the vitreous humor 5 The somatic sensory cortex represents parts of the body a According to the size of the body part b According to the size of the receptive fields of the neurons in that part of the body c According to the distance of the body part to the somatic sensory cortex d According to the nerve conduction velocity of the neurons in that body part e According the maximum force produced by the muscles in that part of the body B Very short Answer Fill in 1 The spot on the retina with the highest concentration of cones is called 2 What retinal neurons are specialized in detecting differences in light intensity 3 Color vision is made possible by what part of the eye 4 The semicircular canals in the vestibular system detect 5 Slowly adapting cutaneous receptors detect while rapidly adapting receptors detect 6 What is proprioception C Open ended questions 1 a Explain how visual acuity a sharp image is obtained in the eye In your answer clearly identify the main components of the eye that are involved in visual acuity b Describe the different functions of the rods and cones SEE OTHER SIDE 1 Name KIN 460 Practice questions Exam 2 c What is myopia Produce a drawing showing how a myopic eye refracts light differently onto the retina compared to a normal eye 2 a Identify the three types of eye movements used in visual attention to bring objects of interest onto the fovea b What is a saccade Provide the main features of a saccade by drawing a graph with a saccadic response that shows all its main features c What is visual neglect Explain why visual neglect only happens when there is damage to the left parietal lobe d Explain why elite performers are better visually based on the concept of the quiet eye 3 a Rank order from fastest to slowest the conduction velocity of the following sensory neurons pain temperature Proprioceptors and touch mechano receptors Justify your ordering b Which cutaneous receptor in the skin is most likely to help a person to read Braille Explain your answer c A person suffers from a left sided hemisection in the spinal cord What happens to pressure and temperature pain perception from the body s skin receptors below this hemisection Explain your answer 4 a Describe how in the otoliths of the vestibular system motion of the head is converted into neural signals start with the motion stimulus and end with the activity of a vestibular neuron b What is the vestibulo ocular reflex VOR And what is the function of this VOR c What is nystagmus Explain on the basis of the normal and abnormal function of the two vestibular systems in each ear how a nystagmus patterns can emerge 5 a Explain why the brainstem is such an important CNS structure b What are the differences between anticipatory and compensatory or reactive postural control and what brainstem structures regulate these postural control systems c Discuss the different types of compensatory postural control strategies d What are the main roles of the cerebellum Identify a major neuronal type of the cerebellum and discuss its function incorporating the form of this neuron in you answer e Identify two key components of the motor cortex and discuss their primary roles 6 a Describe the morphological and neural factors involved in strength training and describe in what phases of training these contribute to the gains in strength b What are the adaptations changes in reflex function at the level of the spinal cord as a result of strength training c Describe the phenomenon of cross transfer provide the possible major neural mechanisms responsible for this cross transfer SEE OTHER SIDE 2