Name blanks and fill 1, 2, 3, **Chapter 13: Peripheral Nervous System**### **Understanding the Peripheral Nervous System****Detailed Diagram Analysis:**1. **Nerve Structure:** - **Image Description:** - The left part of the image shows a magnified view of a nerve section. The labeled parts include: - "Nerve fibers" which are visible as bundled, elongated structures. - "Blood vessel" running alongside these fibers providing necessary nutrients.2. **Axon Anatomy:** - **Image Description:** - Below the magnified nerve section, another detailed diagram breaks down the structure of a nerve fiber longitudinally. The labeled parts include: - **Axon:** The long extension of a nerve cell that transmits electrical impulses. - **Myelin Sheath:** The insulating layer around the axon which aids in speedy transmission of impulses. - **Blood Vessels:** Vital for supplying necessary nutrients and oxygen to the nerve. 3. **Nervous Pathways (Right Section):** - **Graphical Representation:** - The larger diagram on the right is an intricate depiction of the peripheral nervous system and its connections. The diagram highlights the journey of sensory and motor signals between various components: - **CNS (Central Nervous System):** Brain segments illustrated including Motor Cortex, Somatosensory Cortex, Thalamus, Cerebellum. - **Spinal Pathways:** Signals running to and from the spinal cord which features critical sections such as the Reticular Formation, Pons, and Medulla. - **Peripheral Connections:** - **Free Nerve Endings:** Sensory receptors detecting pain, cold, and warmth. - **Muscle Spindle:** Sensory receptor within muscle detecting changes in muscle length. - **Joint Kinesthetic Receptor:** Sensory receptor within joints providing information on movement and spatial orientation.### **Summary:**The diagrams presented offer a comprehensive view of the peripheral nervous system, illustrating both the micro (nerve fiber structure) and macro (pathways of nerve signals) perspectives. This detailed breakdown helps in understanding how sensory and motor information is transmitted throughout the body, ensuring effective communication within various body systems. This understanding is crucial for grasping the principles of neurophysiology and the functioning of human biology.

A nerve is a type of cord-like organ. It belongs to the peripheral nervous system. Cranial nerves…

Nerve fibers Blood vessel Axon Myelin sheath Blood vessels Thalamus Free nerve endings (pain, cold, warmth) Motor cortex Reticular formation Pons Medulla Spinal cord Muscle spindle Somatosensory cortex Joint kinesthetic receptor Cerebellum Chapter 13: Peripheral Nervous System

Nerve fibers Blood vessel Axon Myelin sheath Blood vessels Thalamus Free nerve endings (pain, cold, warmth) Motor cortex Reticular formation Pons Medulla Spinal cord Muscle spindle Somatosensory cortex Joint kinesthetic receptor Cerebellum Chapter 13: Peripheral Nervous System

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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