Laboratory Manual For Human Anatomy & Physiology
4th Edition
ISBN: 9781260159080
Author: Martin, Terry R., Prentice-craver, Cynthia
Publisher: Mcgraw-hill Education,
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Chapter 27, Problem 7PL
Summary Introduction
To Determine: If the given statment is true or false.
Introduction: The nervous system has three types of neurons: sensory, motor and interneurons. Together these neurons pass the signals between the central nervous system and effector body parts. They conduct impulses via neurotransmitters.
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Chapter 27 Solutions
Laboratory Manual For Human Anatomy & Physiology
Ch. 27 - The cell body of a neuron contains the a. nucleus....Ch. 27 - A multipolar neuon contains a. one dendrite and...Ch. 27 - Neuroglia that produce myelin insulation in the...Ch. 27 - The PNS contains a. 12 pairs of cranial nerves...Ch. 27 - Schwann cells a. are only in the brain. b. are...Ch. 27 - A ______________ neuron is the most common...Ch. 27 - Prob. 7PLCh. 27 - Prob. 8PLCh. 27 - Match the terms in column A with the descriptions...Ch. 27 - Match the terms in column A with the descriptions...
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- Write the name of each cranial nerve next to the Roman numeral representative of that nerve. Then draw a line to link each nerve to its characteristics. Some characteristics may link to VII. more than one nerve, while other nerves may have more than one characteristic. a. Mixed branch controls chewing and detects sensations in lower jaw b. Links the retina to the brain's visual cortex; III damage causes blindness in part or all of a visual field IV c. Regulates voluntary movements of the eyelid and eyeball V VI d. Damage to sensory branch causes loss of sensation in upper face VII VIII e. Governs tongue movements, swallowing, and gagging IX f. Damage causes tongue to deviate toward injured side X XI g. Damage here can cause a drooping eyelid and dilated pupil XII h. Damage causes sagging facial muscles and distorted sense of taste i. Longest and most widely distributed cranial nerve j. Concerned with hearing and balance k. Plays a key role in many heart, lung, digestive, and urinary…arrow_forwardSpinal nerves from different segments combine to form nerve plexuses. Nerves from which two plexuses combine to form the radial nerve? Group of answer choices A. lumbar and sacral plexuses B. brachial and sacral plexuses C. cervical and brachial plexuses D. cervical and sacral plexuses ____________________________________________________________________________ The resting membrane potential of a nerve cell is -70 mV. If threshold is -60 mV and a medication causes a patient's resting membrane potential to change to -75 mV, what is the likely outcome? Group of answer choices A. normal generation of action potentials B. it will be easier to generate an action potential C. it will be more difficult to generate an action potential D. facilitation will occur at the cell membranearrow_forwardFill in the blank: The bulge in the spinal cord that gives off nerves to the lower limbs is called the _______________________enlargement.arrow_forward
- Martina has what appears to be a seizure. To verify weather Martina has epilepsy, her doctor a fixes small disc shaped mental plates to Martinez scalp in order to obtain a recording of her brain waves. What technique is being utilized? A. CT B. PET C. EEG D. MRIarrow_forwardFill in the blank: The _______________________ connects the gray matter on the left and right sides of the spinal cord.arrow_forwardComplete the blank: Sensory impulses travel from the organs of equilibrium to the brain on the _______________________ nerve.arrow_forward
- Identify the nerve plexus from which each nerve originates. ______________________ 1. femoral n. ______________________ 2. sciatic n. ______________________ 3. phrenic n. ______________________ 4. ulnar n. ______________________ 5. axillary n. ______________________ 6. tibial n. ______________________ 7. obturator n.______________________ 8. radial n. ______________________ 9. common fibular n. ______________________ 10. pudendal n.arrow_forwardHenry Gustav Molaison (H.M.) suffered from profound anterograde amnesia after his ________________ were surgically removed in an attempt to control his seizures. a. hippocampi c. frontal lobes b. amygdalae d. thalamiarrow_forward____________ is a neuromodulator that blocks the conduction of pain signals by second-order spinal neurons.a. Endorphinb. Enkephalinc. Substance Pd. Acetylcholinee. Norepinephrinearrow_forward
- Name the 5 components of a reflex arc in order. a. ______________________ b. ______________________ c. ______________________ d. ______________________ e. ______________________ 2. How many neurons are in a monosynaptic reflex arc? _______ How many synapses are in the integrating center? _______ 3. How many neurons are in a polysynaptic reflex arc? _______ How many synapses are in a polysynaptic reflex arc containing two interneurons in the integrating center? _______ 4. Which type of neuron does the sensory neuron synapse with in a monosynaptic reflex arc? ______________________ 5. Which type of neuron does the sensory neuron synapse with in a polysynaptic reflex arc? _______________________arrow_forwardWhich cerebral lobe is located immediately posterior to the central sulcus and superior to the lateral sulcus? a. frontal lobe b. parietal lobe c. temporal lobe d. occipital lobearrow_forwardIn the form of a note, explain cranial nerves (all).arrow_forward
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