ANAT.+PHYSIO.2-LAB.MAN. >CUSTOM<
20th Edition
ISBN: 9781264303090
Author: VanPutte
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 15.3, Problem 28AYP
Summary Introduction
To analyze:
The pathway of the action potential from the rod or cone cell to the optic nerve.
Introduction:
After the absorption of light by the rhodopsin molecule, the shape of the opsin changes from 11-cis-retinal to all Trans retinal. This change leads to the activation of the attached g-protein known as transducin.
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Match the numbers in Figure with the description of what is happening as the sensory neurons, interneurons, and motor neurons communicate with one another. Start with number 1. ____ 1 Graded potential starts in a sensory receptor in the skin. ____ A t a second synapse, a graded potential followed by an action potential occurs in a secondary interneuron, which reaches the cerebral cortex. The graded potential triggers an action potential in a sensory neuron. ____ The lower motor neuron forms a neuromuscular synapse with the hand muscles, which causes the muscles to contract as he writes the letter. ____ In another synapse, the neurotransmitter creates a graded potential, which triggers an action potential in the lower motor neuron. ____ A primary interneuron forms an action potential and crosses to the opposite side of the brain. ____ A stimulus from the brain causes a graded potential and then an action potential to form in an upper motor neuron (which crosses back to the original side…
Fill out the information indicated for tactile receptors in the table below:
Name
Structure
Location
Function.
(encapsulated or
unencapsulated?)
Tactile disc
Tactile
corpuscle
Free nerve
endings
End bulb
Bulbous
corpuscle
Root hair
plexus
Lamellated
corpuscle
Drag the labels onto the diagram to identify the components of somatic sensory pathways.
First synapse in medulla,
ipsilateral to the stimulus
First synapse in spinal cord,
ipsilateral to the stimulus
Fine touch, vibration,
proprioception
Crosses midline in spinal
cord
Second synapse in thalamus,
contralateral to the stimulus
Pain, temperature, coarse
touch
Third synapse in primary
somatic sensory cortex,
contralateral to the stimulus
Crosses midline in medulla
SOMATOSENSORY PATHWAYS
Chapter 15 Solutions
ANAT.+PHYSIO.2-LAB.MAN. >CUSTOM<
Ch. 15.1 - Where are olfactory neurons located? Explain their...Ch. 15.1 - Describe the initiation of an action potential in...Ch. 15.1 - What is unique about olfactory neurons with...Ch. 15.1 - Where are the central olfactory cortex areas...Ch. 15.2 - Name and describe the four kinds of papillae on...Ch. 15.2 - Describe the structure of a taste bud.Ch. 15.2 - What are the five primary tastes? Describe how...Ch. 15.2 - Prob. 8AYPCh. 15.2 - How is the sense of taste related to the sense of...Ch. 15.3 - Prob. 10AYP
Ch. 15.3 - How do the conjunctiva,lacrimal apparatus, and...Ch. 15.3 - Prob. 12AYPCh. 15.3 - How does the pupil constrict? How does it dilate?Ch. 15.3 - Prob. 14AYPCh. 15.3 - Name the three chambers of the eye and the...Ch. 15.3 - Prob. 16AYPCh. 15.3 - Prob. 17AYPCh. 15.3 - Prob. 18AYPCh. 15.3 - Prob. 19AYPCh. 15.3 - Prob. 20AYPCh. 15.3 - Prob. 21AYPCh. 15.3 - Distinguish among myopia, hyperopia. and...Ch. 15.3 - Prob. 23AYPCh. 15.3 - Describe the changes that occur in a rod cell...Ch. 15.3 - Prob. 25AYPCh. 15.3 - Prob. 26AYPCh. 15.3 - Prob. 27AYPCh. 15.3 - Prob. 28AYPCh. 15.3 - Prob. 29AYPCh. 15.3 - Starting with the optic nerve, trace the action...Ch. 15.3 - Prob. 31AYPCh. 15.4 - Name the three regions of the ear, and list each...Ch. 15.4 - Describe the relationship among the tympanic...Ch. 15.4 - What are the functions of the external auditory...Ch. 15.4 - Explain how the membranous labyrinth of the...Ch. 15.4 - Describe the structure of the spiral organ.Ch. 15.4 - Explain the differences between inner and outer...Ch. 15.4 - Relate how tip links function.Ch. 15.4 - Prob. 39AYPCh. 15.4 - Contrast volume, pitch, and timbre.Ch. 15.4 - Starting with the auricle, trace a sound wave into...Ch. 15.4 - What is the importance of the sound attenuation...Ch. 15.4 - Prob. 43AYPCh. 15.4 - Describe the neuronal pathways for hearing, from...Ch. 15.4 - Prob. 45AYPCh. 15.4 - Prob. 46AYPCh. 15.4 - What is dynamic equilibrium? Whatstructures are...Ch. 15.4 - Prob. 48AYPCh. 15.4 - Prob. 49AYPCh. 15.5 - Prob. 50AYPCh. 15 - Which of these statements is not true with respect...Ch. 15 - Prob. 2RACCh. 15 - Which of these is not one of the basic tastes? a....Ch. 15 - Which of these types of papillae have no taste...Ch. 15 - Prob. 5RACCh. 15 - The ciliary body a. contains smooth muscles that...Ch. 15 - Prob. 7RACCh. 15 - Prob. 8RACCh. 15 - Prob. 9RACCh. 15 - Prob. 10RACCh. 15 - Prob. 11RACCh. 15 - Prob. 12RACCh. 15 - Prob. 13RACCh. 15 - In the retina cones that are most sensitive to a...Ch. 15 - Given these areas of the retina: (1) macula (2)...Ch. 15 - Prob. 16RACCh. 15 - Prob. 17RACCh. 15 - Which of these structures is found within or is...Ch. 15 - Prob. 19RACCh. 15 - Prob. 20RACCh. 15 - Prob. 21RACCh. 15 - Prob. 22RACCh. 15 - Prob. 23RACCh. 15 - Prob. 24RACCh. 15 - Damage to the semicircular canals affects the...Ch. 15 - Prob. 1CTCh. 15 - Perhaps you have heard that eating carrots is good...Ch. 15 - A man stares at a black clock on a white wall for...Ch. 15 - Prob. 4CTCh. 15 - Prob. 5CTCh. 15 - Prob. 6CTCh. 15 - Professional divers are subject to increased...Ch. 15 - If a vibrating tuning fork is placed against the...
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- The right optic nerve contains the same set of axons as the right optic tract. Select one: O True O Falsearrow_forwardPlace the following neural structures in the correct order based on pupillary constriction as a result of light being shone in your eye. Pupillary smooth muscle contraction Optic nerve-cranial nerve Il oculomotor nerve-cranial nerve III Midbrain (superior colliculi) Light hits photoreceptor cells in the retinaarrow_forwardDrag the function of the somatic sensory pathway to its proper location on the spinal cord. Drag the appropriate labels to their respective targets. > View Available Hint(s) Reset Help Proprioception from tendons and joints Pain Fine touch Pressure Submitarrow_forward
- Correctly label the following anatomical features of a nerve. Endoneurium Posterior root ganglion Reset Zoom Perineurium Epineurium Myelinated nerve fibers Rootlets Myelin Fascicle 17 Blood vessels Unmyelinated nerve fibersarrow_forwardDraw an anatomical diagram of a pituitary gland that compresses the optic chiasma, destroying the axons crossing through the midline of the structure. Label structures and highlight the axons/fibers that are impactedarrow_forwardStarting with the taste hair, name the structures and cellsthat an action potential would encounter on the way tothe taste area of the cerebral cortex.arrow_forward
- rrectly label the following anatomical features of a nerve. Rootlets Fascicle Reset Zoom Posterior root Spinal nerve Blood vessels Anterior root Myelin Posterior root ganglionarrow_forwardplease use arrows to idetify: axon fascicle endoneurium perineurium epineurium Schwann cell (myelin sheath) Nucleus of Schwann cellarrow_forwardIn some cases, phantom limb pain appears to be related to the patient's perception that the phantom limb is held in an uncomfortable position. True or False?arrow_forward
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