LL A&P TEXT- LAB MANUAL/MASTERING ACCES
6th Edition
ISBN: 9780134493985
Author: MARIEB & HOEHN
Publisher: PEARSON C
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Chapter 13.1, Problem 3CYU
Your cortex decodes incoming action potentials from sensory pathways. How does it tell the difference between hot and cold? Between cool and cold? Between ice on your finger and ice on your foot?
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1.
This question asks you about a typical neuron and NOT photoreceptors. As stimulus intensity is increased, recording from a single neuron USUALLY shows
the amplitude of the action potential increases.
the amplitude of the action potential decreases.
the amplitude of the action potential may increase or decrease, depending on the stimulus.
the rate of firing of the nerve fiber increases.
2. An inhibitory transmitter _______ the firing rate of a neuron and an excitatory transmitter ________ the firing rate.
increases; decreases
increases; increases
decreases; decreases
decreases; increases
You accidentally place your hand on a hot surface. You immediately pull your hand away and then feel the burning sensation and pain from the burn you just received.
Explain why, based on the structure of the nervous system, it takes longer to feel the pain than it does to move your hand away from the dangerous stimulus
What are the similarities in how receptive fields are represented by the nervous system?
What advantage does this give us with respect to senses?
Chapter 13 Solutions
LL A&P TEXT- LAB MANUAL/MASTERING ACCES
Ch. 13.1 - What are the three levels of sensory integration?Ch. 13.1 - Prob. 2CYUCh. 13.1 - Your cortex decodes incoming action potentials...Ch. 13.2 - Your PNS mostly consists of nerves. What else...Ch. 13.2 - Youve cut your finger on a broken beaker in your...Ch. 13.4 - What are tears and what structure secretes them?Ch. 13.4 - Prob. 5CYUCh. 13.4 - Arrange the following in the order that light...Ch. 13.4 - You have been reading this book text for a while...Ch. 13.4 - Prob. 8CYU
Ch. 13.4 - For each of the following, indicate whether it...Ch. 13.4 - Which part of the visual field would be affected...Ch. 13.4 - Prob. 13CYUCh. 13.4 - Name the five taste modalities. Name the three...Ch. 13.5 - Apart from the bony boundaries, which structure...Ch. 13.5 - Which structure inside the spiral organ allows us...Ch. 13.5 - Prob. 17CYUCh. 13.5 - If the brain stem did not receive input from both...Ch. 13.5 - Prob. 19CYUCh. 13.6 - Prob. 20CYUCh. 13.6 - What is in a nerve besides axons?Ch. 13.6 - Wills femoral nerve was crushed while clinicians...Ch. 13.7 - Name the cranial nerve(s) most involved in each of...Ch. 13.8 - Prob. 24CYUCh. 13.8 - After his horse-riding accident, the actor...Ch. 13.9 - What are varicosities and where would you find...Ch. 13.10 - Which parts of the nervous system ultimately plan...Ch. 13.11 - Prob. 28CYUCh. 13.11 - Prob. 29CYUCh. 13.11 - Prob. 30CYUCh. 13.11 - Prob. 31CYUCh. 13 - The large onion-shaped receptors that are found...Ch. 13 - Proprioceptors include all of the following except...Ch. 13 - Prob. 3MCCh. 13 - Prob. 5MCCh. 13 - For each of the following muscles or body regions,...Ch. 13 - Prob. 33MCCh. 13 - Prob. 4MCCh. 13 - Match the names of the cranial nerves in column B...Ch. 13 - Prob. 8MCCh. 13 - The portion of the fibrous layer that is white and...Ch. 13 - Which sequence best describes a normal route for...Ch. 13 - Prob. 11MCCh. 13 - Damage to the medial recti muscles would probably...Ch. 13 - The phenomenon of dark adaptation is best...Ch. 13 - Blockage of the scleral venous sinus might result...Ch. 13 - Nearsightedness is more properly called a. myopia,...Ch. 13 - Of the neurons in the retina, the axons of which...Ch. 13 - Which reactions occur when a person looks at a...Ch. 13 - The blind spot of the eye is a. where more rods...Ch. 13 - Olfactory tract damage would probably affect your...Ch. 13 - Sensory impulses transmitted over the facial,...Ch. 13 - Taste buds are found on the a. anterior part of...Ch. 13 - Gustatory epithelial cells are stimulated by a....Ch. 13 - Olfactory nerve filaments are found a. in the...Ch. 13 - Conduction of sound from the middle ear to the...Ch. 13 - Which of the following statements does not...Ch. 13 - Pitch is to frequency of sound as loudness is to...Ch. 13 - The structure that allows pressure in the middle...Ch. 13 - Which of the following is important in maintaining...Ch. 13 - Equilibrium receptors that report the position of...Ch. 13 - Which of the following is not a possible cause of...Ch. 13 - Which of the following are intrinsic eye muscles?...Ch. 13 - Prob. 32MCCh. 13 - List the structural components of the peripheral...Ch. 13 - Prob. 47SAQCh. 13 - Central pattern generators (CPGs) are found at the...Ch. 13 - Prob. 48SAQCh. 13 - Explain how a crossed-extensor reflex exemplifies...Ch. 13 - What clinical information can be gained by...Ch. 13 - Prob. 46SAQCh. 13 - How do rods and cones differ functionally?Ch. 13 - Where is the fovea centralis, and why is it...Ch. 13 - Prob. 37SAQCh. 13 - Since there are only three types of cones, how can...Ch. 13 - Where are the olfactory sensory neurons, and why...Ch. 13 - (a) Define plexus. (b) Indicate the spinal roots...Ch. 13 - What is the homeostatic value of flexor reflexes?Ch. 13 - Prob. 43SAQCh. 13 - Prob. 1CCSCh. 13 - Prob. 2CCSCh. 13 - Prob. 3CCSCh. 13 - Prob. 1CCSSCh. 13 - Prob. 2CCSSCh. 13 - Prob. 3CCSSCh. 13 - Prob. 4CCSSCh. 13 - Prob. 5CCSS
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- The sensory systems are complex and have the amazing ability to respond to different types of environmental stimuli. What is one aspect of the sensory systems we have looked at (gustatory, olfactory, or visual) that you found particularly interesting and would like to know more about?arrow_forwardHow would changes in grey matter (number of connections) and white matter (myelination of the connecting fibers) change how we see the world?arrow_forwardAuditory neural signals are sent when HAIR CELLS in our inner ears open ion channels along their plasma membranes to trigger action potentials. What specifically happens to the hair cells that causes ion channels to open?arrow_forward
- How do we distinguish a strong stimulus from a weak one when the information about both stimuli is relayed by action potentials that are all the same amplitude?arrow_forwardIn complete darkness, why are there no neural signals being sent to the brain by the retinal ganglion cells? A. glutamate release from rods stimulates the retinal ganglion cells B. glutamate release from rods stimulates bipolar cells which then inhibit retinal ganglion cells C. glutamate release from rods is reduced which then fails to excite retinal ganglion cells D. glutamate release from rods inhibits the bipolar cells which then inhibit retinal ganglion cellsarrow_forwardNeurons with ___ receptive fields would respond best to ____ spatial frequencies. A large; low B small; high C All of the above. D None of the above. Individual neurons are never tuned to spatial frequency.arrow_forward
- Interneurons :-a- provide communication between the central ends of afferent neuronsb- provide communication between dendrites of the efferent neuronsc- influence the rate of discharge from the alpha motor neuronsd- participate in ascending sensory pathwaysarrow_forwardBefore we conclude that mirror neurons help people imitate, which of the following should research demonstrate?A. Mirror neurons respond to both seeing and hearing someone else’s movement.B. Mirror neurons occur in the same brain areas of humans as in monkeys.C. Mirror neurons have different properties for people from different cultures.D. Mirror neurons develop their properties before children start to imitate.arrow_forwardWhen light strikes a photoreceptor, it reduces the amount of glutamate that it releases. This releases ___ cells from inhibition, allowing them to release more neurotransmitters and excite ___ cells. This produces action potentials that travel down the optic nerve. A) horizontal; amacrine B) amacrine; horizontal C) ganglion; bipolar D) bipolar; ganglionarrow_forward
- What channels are open at 3 if this was recorded on the axon of a sensory neuron? K+ voltage gated channels K+ leak channels Na+ ligand gated channels Na+ stimulus gated channels Na+ voltage gated channels Ca+ voltage gated channels Cl- ligand gated channelsarrow_forwardHow does a neuron communicate a stimulus's strength?arrow_forwardIn the ___, neurons are arranged like maps that correspond to different parts of the body surface. a. retina b. somatosensory cortex c. basilar membrane d. occipital lobearrow_forward
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The Sensorimotor System and Human Reflexes; Author: Professor Dave Explains;https://www.youtube.com/watch?v=M0PEXquyhA4;License: Standard youtube license