Quiz 5 Review Questions PDF

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What would you do if you have been bitten or scratched by a wild animal? A. Call your state or local health department as soon as possible B. Call your health care provider as soon as possible C. Clean the wound with soap and water to remove any saliva D. All of the above

Question 2 of 20 Which of the following is not always a component of a reflex arc? A. Receptor B. Sensory neuron (CNS afferent) C. Central nervous system (CNS) interneuron D. Motor neuron (CNS efferent) E. Target (effector) organ

Question 3 of 20 The receptor organ detecting rotary acceleration and deceleration of the head is located in the: A. Utricle B. Saccule C. Ampulla of the semicircular duct D. Scala media of the cochlea E. Vestibular nuclear complex

Question 4 of 20 The vestibular system is a unilateral receptor system located only in the inner ear. A. True B. false

Question 5 of 20 Which of the following statements is correct? A. Utricle responds to horizontal acceleration, and saccule responds to vertical acceleration. B. Saccule responds to horizontal acceleration, and utricle responds to vertical acceleration

Question 6 of 20 Bending of the hair cells cilia prevent the hair cells from depolarizing? A. False B. True

Question 7 of 20 Which of the following statements is false? A. The semicircular canal detects linear acceleration, whereas the utricle and saccule detect angular acceleration. B. The semicircular canal detects angular acceleration, whereas utricle and saccule detect linear acceleration

Question 8 of 20 Which of the following is not the function of the middle ear? A. Transforms sound waves into vibrations B. Transmits vibrations to the brain

Question 9 of 20 Which of the following statements is false? A. Most reflexes travel only to the brain. B. Most reflexes travel only to the spinal cord. C. Both (a and b)

Question 10 of 20 Salivation when smelling food is an example of __________. A. Somatic reflex B. Innate reflex C. Acquired D. None

Question 11 of 20 The muscle spindle receptor is an encapsulated group of specialized skeletal muscle fibers supplied with only sensory innervation. A. True B. False

Question 12 of 20 Which of these receptors detects stretching a muscle? A. Golgi tendon organ B. Muscle spindle C. Both D. None

Question 13 of 20 Which of the following regarding sensory receptors is false? A. They transduce environmental signals, directly or indirectly, into neuronal action potentials. B. A primary receptor can be a specialized peripheral region of a sensory neuron. C. They directly transduce CNS action potentials into the physical activity of a target organ. D. They are the initial component of a reflex arc.

Question 14 of 20 γ (gamma)-motor neurons innervate which of the following fibers? A. Intrafusal fibers B. Extrafusal fiber C. Both

Question 15 of 20 Which of the following statements is false about the external auditory canal? A. Allows air to warm before reaching tympanic membrane (TM) B. Isolates TM from physical damage C. Cerumen glands do not moisten/soften skin D. The presence of some cerumen is normal

Question 16 of 20 The rabies virus is passed on by contact with what part of an infected animal? A. Skin B. Saliva C. Blood D. Claws E. Both b and c

Question 17 of 20 A farmer reported to you that his calf has inappropriate movement such as seizures and circling gaits; what would be your diagnosis? A. Disease of upper neuron B. Disease of lower neuron C. Both (a and b)

Question 18 of 20 What is the order of the reflex arc? A. Receptor - Motor neuron - Integrating center (spinal cord) - Sensory neuron - Effector B. Sensory receptor - Sensory neuron - Integrating center (spinal cord) - Motor neuron Effector C. Sensory receptor- Integrating center (spinal cord) - Sensory neuron - Motor neuron – Effector

Question 19 of 20 Which one of the following statements is false? A. In a given utricle, the cilia of the hair cells are oriented in the same horizontal direction. B. In a single vestibular hair cell, displacement of the cilia toward the largest cilium increases the firing rate of the hair cell’s associated sensory neuron. C. The axons of sensory neurons synaptically associated with vestibular hair cells form the eighth cranial nerve. D. A gelatinous layer is associated with the vestibular macula. E. The vestibular nuclear complex is located in the brainstem.

Question 20 of 20 Hair cells are the sensory receptors for which of the following system(s)? A. Auditory system and the vestibular system B. Auditory system C. Vestibular system...