PPT-Spinal Nerves and Reflex Arc

SLO 12 describe the organization of the nervous system according to structure including 121 naming and locating basic components of the central nervous system including grey and white matter. Objectives:. To describe the pathway nervous impulses travel through a reflex. To observe reflexes and reaction times. Journal: List the layers of protection around the central nervous system from the vertebrae to the spinal cord. . #TeamBernard. Cardiovascular . System. What is the dive reflex? . Data for the dive reflex. . Draw a reflex arc for this response. . What is the mechanism causing this response? . Why would humans, who are typically not diving animals, retain this reflex?. Eleventh Edition. Chapter 13. The Spinal Cord, Spinal Nerves, and Spinal Reflexes. Clicker Questions. What is the minimum number of neurons in a reflex arc?. 1. 2. 5. 7. What is the minimum number of neurons in a reflex arc?. 31 pairs arise from spinal cord. Five groups correspond to regions of spinal cord and vertebrae. Cervical 8 pr.. Thoracic 12 pr.. Lumbar 5 pr.. Sacral 5 pr.. Coccygeal 1 pr.. Structure of a Nerve. Reflex. —. Occurs over pathways called reflex arcs. Reflex arc. —. The Reflex Arc. Figure 7.11a. Stimulus at distal. end of neuron. Skin. Spinal cord. (in cross section) . Interneuron. Receptor. Effector. Introduction :. 2 General Classifications. Complete Lesion . A lesion to the spinal cord where there is no preserved motor or sensory function below the level of lesion. Incomplete Lesion. A lesion to the spinal cord with incomplete damage to the cord. There may be scattered motor function, sensory function or both below the level of lesion. HOSA – Future Health Professionals. On Fin . Old And. Olympus German. Towering Viewed. Top Some. A Hops. 12 pairs. I Olfactory VII Facial. II Optic VIII Acoustic. III Oculomotor IX Glossopharyngeal. Day 7. 31 Pairs. Mixed nerves that provide 2-way communication between spinal cord and limbs, neck, and trunk. Named individually, grouped according to level which they arise.. Spinal Nerves. Cervical Nerves. DR NOOR US SABA. SR, DEPARTMENT OF ANATOMY. JNMCH, AMU, ALIGARH. DEFINITION. DERMATOME. Strip (Area) of skin supplied by a single spinal nerve. CUTANEOUS NERVES. Named branches from nerve plexuses or directly from spinal nerves. HONORS ANATOMY & PHYSIOLOGY. Spinal Cord. w/spinal nerves contain neural circuits that mediate some of your most rapid reactions to environmental changes. Protective Structures. 2 types of CT coverings surround & protect delicate nervous tissue. (Neurological Examination ). Dr. Vivek Kr. Singh . Assistant Professor. Department of Veterinary Clinical Complex . Unit-2. Introduction. Neurological examination is most rewarding in dogs and cats because all the techniques can be easily employed. Spinal Cord. Location. Begins at the foramen magnum . Ends as conus medullaris at L. 1. vertebra. Functions. Provides two-way communication to and from the brain. Contains spinal reflex centers. Figure 12.30. Spinal nerve and Reflex arc. . Dr. . Qazi. . Imtiaz. . Rasool. OBJECTIVES. Recall . various components . of somatic nervous system. .. Explain . structure. of typical spinal nerve. Micturition or urination is the process of emptying urinary bladder when it is full.. FUNCTIONAL ANATOMY OF THE BLADDER. Main organs involved are;. urinary bladder and urethra.. A--- URINARY BLADDER;.