WebMar 15, 2024 · Notochord Definition. The notochord is an elastic rod which extends through Chordate organisms, providing rigid support. In the more derived Chordates, the Vertebrates, the notochord is replaced by the … WebThe large opening between the vertebral arch and body is the vertebral foramen, which contains the spinal cord. In the intact vertebral column, the vertebral foramina of all of …

Anatomy of the Spine and Peripheral Nervous System

WebYour spine is made up of 24 small bones (vertebrae) that are stacked on top of each other to create the spinal column. Between each vertebra is a soft, gel-like cushion called a disc that helps absorb pressure and keeps the bones from rubbing against each other. Each vertebra is held to the others by groups of ligaments. ... The bony ring ... WebThe spinal column supports weight and other forces between the upper and lower portions of the body, and it protects the spinal cord. The cervical, thoracic, and lumbar spine consist of a stack of individual vertebrae separated by intervertebral discs and held together by strong ligaments. Each functional spinal unit, consisting of two adjacent ... cry rop redlands ca

7.3 The Vertebral Column - Anatomy and Physiology 2e - OpenStax

Your spinal cord has three main parts: 1. Cervical (neck). 2. Thoracic (chest). 3. Lumbar (lower back). See more Like your brain, layers of tissue called meninges cover the spinal cord. These protective tissues include: 1. Dura mater. The outer layer that protects your spinal cord from injury. 2. Arachnoid mater.The middle layer between … See more You have 31 pairs of nerves and nerve roots in your spinal cord. These include: 1. Eight cervical nerve pairs (nerves starting in your neck and … See more The epidural space is between the dura mater and arachnoid mater. This space is where healthcare providers insert anesthesia during childbirth, known as epidurals. The subarachnoid space is between the … See more The spinal cord begins at the bottom part of your brainstem, called the medulla oblongata. At your lower back, your spinal cord forms a cone shape called the conus medullaris. See more WebCervical spondylosis, also called arthritis of the neck, is the age-related slow degeneration of your disks and joints in your cervical spine. Cervical spinal cord injury. A cervical spinal cord injury is an injury to your cervical vertebrae. Most spinal cord injuries are the result of a sudden, traumatic blow to the vertebrae. WebJul 22, 2024 · It is located between the laminae of the vertebra. At each vertebral level, fibers originate from a superior lamina (the term superior refers to a location above, relatively speaking) and connect to the inferior lamina (i.e. the lamina just below). The ligamentum flavum limits spinal flexion (bending forward), especially abrupt flexion. cry rock song