KIN 2500 Study Guide - Midterm Guide: Dense Irregular Connective Tissue, Ramus Communicans, Sacral Plexus
18 Oct 2016
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Document Summary
The spinal cord: contains neural circuits that control some of your quickest reactions to environmental changes. Is the site for integration of neuronal stimulation: relays sensory nerve impulses. Is continuous with the brain and together they constitute the central nervous system (cns) Dura mater most superficial layer; dense irregular connective tissue. Epidural space: protected by fat and connective tissue, between vertebral column and dura mater. Arachnoid mater spun like spider web (collagen & elastic fibers middle layer, avascular. Pia mater thin & transparent; adheres to spinal cord & brain. Denticulate ligaments: anchoring spinal cord to arachnoid mater: csf cerebral spinal fluid helps to protect spinal cord; shock absorber. External anatomy of the spinal cord: the length of the adult spinal cord is 42 45 cm (16 18 in. Its maximum diameter is about 1. 5 cm (0. 6 in. ) in the lower cervical region and smaller in the thoracic region: cervical enlargement: c4-t1.
