PRE-LAB Activity 4: Examining the Functional Anatomy of the Spinal Cord 1. Match each of the following spinal cord structures with its description: a. filum terminale b. conus medullaris c. cauda equina d. denticulate ligament 1. tapered end of the spinal cord 2. lateral extension of pia mater that anchors the spinal cord 3. connective tissue extending from the tip of the spinal cord to the coccyx 4. name given to spinal nerves extending from the inferior end of the spinal cord as a result of their appearance PRE-LAB Activity 5: Analyzing a Spinal Reflex 1. Match each of the following components of a reflex arc with its description: a. sensory neuron b. effector c. motor neuron d. receptor e. integration center 1. receives the stimulus 2. transmits message to the effector 3. carries out the motor response 4. transmits message to the CNS 5. nerve impulse is processed
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You are given a list of spinal cord structures and their descriptions, but they are mismatched. Your job is to correctly match each structure with its description. **Step 2:** Review the options and descriptions provided. - **a. filum terminale** - **b. conus Show more…
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1. Brain and Spinal Cord. A. Interneuron. 2. Helper Cell. B. Neuromuscular Junction. 3. Functional Cell. C. Dendrites. 4. Sensory Function. D. Neuroglial Cell. 5. Motor Function. E. Neuron. 6. Integration Function. F. Acetylcholine. 7. Enters Neuron. G. Central Nervous System. 8. Exits Neuron. H. Collects stimuli. 9. Neuron and Muscle. I. Axon. 10. Neurotransmitter. J. Sends Commands. 11. Cranial Nerves; Eyes, etc. K. Nodes of Ranvier. 12. Axon Branch. L. Axon Hillock. 13. Cell Body meets Axon. M. Myelin. 14. Bare Axon Spots. N. Collateral. 15. Insulates Axon. O. Peripheral Nervous System. 16. Dura mater P. Motor neuron 17. Gray matter Q. Reflex hammer 18. White matter R. Uses skeletal muscle 19. Arachnoid mater S. Neuron cell bodies 20. Pia mater T. Move hand away from heat 21. Reflex U. Cranial nerves 22. Visceral reflex V. Myelinated axons 23. Knee-jerk reflex (B) W. Innermost meninge 24. Withdrawal reflex X. Fast 25. Gray commissure Y. Sensory receptor 26. Starts reflex Z. Middle meninge 27. Sends command A-1. Sensory receptor 28. Responds to command B-1. Automatic; involuntary 29. Reason for reflexes C-1. Spinal nerves 30. Reflex speed D-1. Cerebrospinal fluid 31. Start neural pathway E-1. Uses smooth muscle 32. Nerves from brain F-1. Effector 33. Somatic reflex G-1. Protection 34. Fluid of nervous system H-1. Outermost meninge 35. Spinal cord nerves I-1. Bridges spinal cord
Qbs E.
PRE-LAB Activity 4: Analyzing a Spinal Reflex. Match each of the following components of a reflex with its description. a. sensory neuron b. effector c. motor neuron d. receptor e. integration center. 1. receives the stimulus 2. transmits message to the effector 3. carries out the motor response 4. transmits message to the CNS 5. nerve impulse is processed. 2. A reflex mediated by a skeletal muscle is classified as a reflex. PRE-LAB Activity 5: Exploring the Autonomic Nervous System. 1. The nervous system is divided into the central nervous system (CNS) and the peripheral nervous system (PNS). The PNS is divided into the and the divisions. The division is further divided into the somatic and autonomic divisions. The division innervates cardiac muscle, smooth muscle, and glands, whereas the division innervates skeletal muscle. 2. How does the efferent pathway in an autonomic reflex differ from that of a somatic reflex? 3. An example of an autonomic reflex is the. Cranial Nerves. With the exception of the vagus nerves, the cranial nerves serve structures of the head and neck only. The 12 pairs of cranial nerves pass through the various foramina of the skull. Three of the cranial nerves (I, II, and VIII) are classified as sensory nerves (S) (Figure 16-1), five (III, IV, VI, XI, and XII)
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7. The ventral root of a spinal nerve contains A. only sensory fibers. B. only motor fibers. C. only afferent fibers. D. both sensory and motor fibers. E. a ganglion. 8. During a spinal tap, cerebrospinal fluid is obtained from which of the following locations? A. dural sinus B. epidural space C. subarachnoid space D. subdural space E. sagittal sinus 9. The lumbosacral plexus supplies nerves that function to contract which of the following? A. the diaphragm B. intercostal muscles C. muscles of the arm and forearm D. muscles of the lower limb E. abdominal muscles. 10. Ventral rami of some spinal nerves join with each other to form a A. ganglion. B. dermatome C. cord. D. plexus. E. nerve. 11. Which of the following nerves is part of the brachial plexus? A. peroneal B. ansa cervicalis C. ischiadic (sciatic) D. musculocutaneous E. femoral. 12. Which of the following is correctly associated with the medulla oblongata? A. It gives rise to conscious thoughts. B. It contains nuclei for regulation of heart rate and blood vessel diameter. C. It contains enlargements called cerebral peduncles. D. It is the most superior portion of the brainstem. E. It relays sensory information. 13. Consider the following five terms and determine which does not belong: A. pons B. medulla C. cardiac center D. pyramids E. olives
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