Concept explainers
To review:
Determine the number of cranial nerve pairs that make a part of the nervous system. Also, give the name of those cranial nerves that are pure sensory in nature, responsible for the activation of chewing muscles, and regulation of heart rate and activity of digestive tract.
Introduction:
The cranial nerves are the pair of nerves that arise directly from the brain unlike the spinal nerves, which arise from the spinal cord. The major functions of these cranial nerves include carrying information from the sensory organs to the brain and regulation of glands and the internal organs. The cranial nerves are sequentially numbered, and in most cases, their names indicate structures controlled by them.
Want to see the full answer?
Check out a sample textbook solutionChapter 7 Solutions
Essentials of Human Anatomy and Physiology (Custom)
- Which CN's have been damaged if you've lost the ability to chew AND keep liquids in your mouth? Question 21 options: Mandibular branch of the trigeminal nerve + facial nerve Mandibular branch of the trigeminal nerve + maxillary branch of the trigeminal nerve Mandibular branch of the trigeminal nerve + hypoglossal nerve MAxillary branch of the trigeminal nerve + glossopharyngeal nerve None of the above are correctarrow_forwardWhich brain lobe is located at the back of the brain, and what is one major function of this area? How does it differ from the hippocampus?arrow_forwardThe sensory (afferent) division of the peripheral nervous systey B: transmits action potentials toward the central nervous system.C: stimulates glands to release hormones.D: stimulates muscle contractions.E: does not involve sensory receptors.arrow_forward
- Draw a picture tracing the motor information from the brain to a deep muscle in the back Which part of brain, where is neuron located? Does it involve spinal cord? Which part of spinal cord (horns)? Root involvement (be specific)? Ganglion involvement? Cranial or spinal nerve involvement? Ramus involvement? What type of muscle (epaxial, hypaxial) is involved and where is it located (anterior, posterior)arrow_forwardWhat are the two primary functions of the nervous system?arrow_forwardHow are nerve signals sent around the body? What two parts are our nervous system made up of? What is the Central Nervous System? How does your arm get a signal to lift if you want to raise your hand?arrow_forward
- What role does input from the vestibular nerve play in regulating posture (lying down, sitting up, exercising) and heart rate?arrow_forwardWhat is the peripheral nervous system (PNS)?arrow_forwardWhich of the following statements is TRUE? 1. A section through the L4 level would find the cauda equina 2. There are 4 peripheral nerve plexuses; cervical, brachial, thoracic, and lumbar 3. The spinal nerve is formed by the fusion of the dorsal gray horn and the ventral gray horn 4. The femoral nerve emerges directly from a single spinal nerve 5. the knee-jerk reflex is considered a cranial reflex 6. reflexes only involve skeletal muscle and not smooth muscle. 7. structures that can be involved in a spinal reflex include a sensory neuron, motor neuron, and an interneuron 8. the crossed-extensor reflex is classified as a monosynaptic reflexarrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education