A P II Exam One Mastering A P Study Guide True statement about the afferent division of the nervous system o It ascends with sensory info Properties of phasic receptors o Fast adapting o Good for sensing vibration o Sensitive to stimulus changes Which is NOT a property of phasic receptors o They are always active Central adaptation can be defined as o Inhibition along sensory pathway Which of these is a general sense o All are pain temperature and proprioception Which of these is NOT a property of thermoreceptors o They are slow adapting Properties of thermoreceptors o Have free nerve endings o The cold and warm receptors are structurally indistinguishable o They are found within the dermis A receptor that contains many mechanically gated ion channels would Which is NOT a property of fast pain o It is fast adapting Properties of fast pain o Aka prickling pain o Carried by myelinated fibers o Sensitive to mechanical tissue injury function best as a o Proprioceptor o Baroreceptor o Tactile receptor Which is NOT a property of chemoreceptors o Classed as nociceptors Properties of chemoreceptors o Trigger visceral reflexes o Are interoceptors o Found in carotid bodies Which is NOT a type of mechanoreceptor o Nociceptor Types of mechanoreceptors o Tactile o Baroreceptor o Proprioceptor If a nerve impulse was transmitted to the CNS on a C fiber o It would lead to a slow sensation of pain Which is NOT a component of the spinocerebellar pathway o The thalamus Components of the spinocerebellar pathway o Lateral white column of the spinal cord o Medulla oblongata o Pons Which of these sensory pathways carries afferent impulses that DON T produce perceptions o Spinocerebellar pathway Proprioceptors signal all BUT o Muscle temperature Proprioceptors signal o Muscle tension o Joint angle o Muscle length pathway o Pain o Proprioception o Fine touch o Pressure Which sensory modalities is NOT carried within the posterior column Sensory modalities that are carried within the posterior column pathway Which is NOT a property of the somatic nervous system o Has control of cardiac muscle Properties of the somatic nervous system o Includes upper motor neurons in the brain o Has control of skeletal muscles o Includes lower motor neurons in the brain stem or spinal cord The corticospinal system exerts o Voluntary control over skeletal muscles Which of the following is NOT a part of the pathway for the sense of smell o Frontal sinus Parts of the pathway for the sense of smell o Cribriform plate of ethmoid bone o Olfactory bulb o Cranial nerve pair I Olfactory glands o Secrete a pigmented mucus The first step in the olfactory process o An odorant dissolves in the olfactory mucus fluid The first step in the process of olfaction is o An odorant molecule binding to a specific protein Which is involved in the gustatory perception of amino acids o Umami receptors Gustatory receptors are found in o Lingual papillae Gustatory receptors function most like o Olfactory receptors Which two structures make up the outermost fibrous tunic of the eye o Cornea and sclera Which is NOT part of the vascular tunic of the eye Parts of the vascular tunic of the eye o Optic disc o Choroid o Iris o Ciliary body known as o The fovea The area of the retina that contains the highest concentration of cones is What is the epithelium that covers the inner surfaces of the eyelids and the outer surface of the eye called o Conjunctiva Which is NOT a structure within the visual axis o Suspensory ligaments Which are structures within the visual axis o Cornea o Lens o Fovea Which is found in the optic disc o Axons of ganglion cells Which statement regarding the cornea is false o It is part of the vascular tunic True statements about the cornea o It s transparent o It s covered by conjunctiva o It refracts light strongly The white of the eye is part of the tunic o Fibrous Which functions does the vascular tunic serve o All supports blood vessels and lymphatics o Regulates the amount of light that enters the eye o Controls shape of the lens Which is NOT a property of the palpebrae o They comprise the eyebrows Properties of the palbebrae o Controlled by cranial nerves The gritty deposit that accumulates in the medial canthus is secreted by the o Contain tarsal glands o Protect the eye o Lacrimal caruncle Bipolar neurons in the retina o Synapse with ganglion cells Lacrimal gland functions o Moisten the cornea o Produce a watery secretion o Produce lysozyme Which is NOT one of the 3 layers of the eye o Scleral tunic 3 layers of the eye o Vascular tunic o Neural tunic o Fibrous tunic Which is the correct pathway for transmission of visual information o Photoreceptor bipolar cell ganglion cell The region of the retina that contains only tightly packed cones is the An elongated outer segment containing membranous discs that is connected by a thin stalk to the inner segment best describes Retinal a component of all the visual pigments is made from o Fovea o A photoreceptor o Vitamin A o Blue cones o Red cones o Green cones Which is NOT a type of photoreceptor o Yellow cone Types of photoreceptors What is the name for the ear canal o External acoustic meatus Which structure is NOT part of the middle ear o Cochlea which provides the sense of equilibrium o Vestibule and semicircular canals Which two structures of the internal ear make up the vestibular complex What would result from inflammation and blockage in the auditory tube o Fluid accumulation in the tympanic cavity What is the function of the semicircular canals o Generates nerve impulses when the head rotates The chain of ossicles begins at the and ends at the o Tympanic membrane oval window A sudden loud noise will reflexively cause the tensor tympani muscle to and cause the stapedius muscle to o Contract contract Relative movement of the in the semicircular canals signals rotation Large movements of the will cause large displacements of the of the head o Endolymph o Tympanic membrane basilar membrane Which is NOT a division of the bony labyrinth o Auditory ossicles Which is a division of the bony labyrinth o Vestibule o Cochlea o Semicircular canals The external ear does NOT include the o Stapes The external ear does include o Tympanic membrane o Acoustic meatus o Pinna Cochlear hair cells are located in the o Organ of Corti
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