Table of Contents
- 1 What is the spinal cord protected by?
- 2 Which part of the nervous system extends down the back?
- 3 What extends from the brain down the back and is protected by bones of the spine?
- 4 What is the spinal cord protected by quizlet?
- 5 Which part of the spine protects the brain stem and the spinal cord?
- 6 What is the spinal cord quizlet?
- 7 Why do you think the spinal cord runs down the middle of the backbone?
- 8 How are the brain and spinal cord protected?
- 9 Which is the protective layer of the spinal cord?
- 10 Where are the nerve cells located in the spinal cord?
- 11 What is the relationship between spinal cord and vertebral column?
What is the spinal cord protected by?
The spinal cord is protected by bones, discs, ligaments, and muscles. The spine is made of 33 bones called vertebrae. The spinal cord passes through a hole in the center (called the spinal canal) of each vertebra. Between the vertebrae there are discs that act as cushions, or shock absorbers for the spine.
Which part of the nervous system extends down the back?
spinal cord
The spinal cord is an extension of the central nervous system (CNS), which consists of the brain and spinal cord. The spinal cord begins at the bottom of the brain stem (at the area called the medulla oblongata) and ends in the lower back, as it tapers to form a cone called the conus medullaris.
What does the spinal cord extend from?
The spinal cord extends from the foramen magnum at the base of the skull to the level of the first lumbar vertebra. The cord is continuous with the medulla oblongata at the foramen magnum. Like the brain, the spinal cord is surrounded by bone, meninges, and cerebrospinal fluid.
What extends from the brain down the back and is protected by bones of the spine?
spinal cord: A thick, whitish cord of nerve tissue which is a major part of the vertebrate central nervous system. It extends from the brain stem down through the spine, with nerves branching off to various parts of the body.
What is the spinal cord protected by quizlet?
What are the protective structures of the spinal cord? The vertebral column (skull and spine) and the meninges. These meninges surround and protect the spinal cord.
Does spine protect spinal cord?
The spine is also designed to protect your spinal cord. The spinal cord is a column of nerves that connects your brain with the rest of your body, allowing you to control your movements. Without a spinal cord, you could not move any part of your body, and your organs could not function.
Which part of the spine protects the brain stem and the spinal cord?
The brain and spinal cord are protected by bony structures — the skull and spinal column. Meninges are membranes that cover and protect the brain and spinal cord.
What is the spinal cord quizlet?
Terms in this set (91) What is the spinal cord? A nerve column that extends from the brain into the vertebral canal.
How far down the vertebral column does the spinal cord extend?
The spinal cord extends down to between the first and second lumbar vertebrae, where it ends. The enclosing bony vertebral column protects the relatively shorter spinal cord. It is around 45 cm (18 in) long in adult men and around 43 cm (17 in) long in adult women.
Why do you think the spinal cord runs down the middle of the backbone?
The vertebrae protect the spinal cord, a long, fragile structure contained in the spinal canal, which runs through the center of the spine. Between the vertebrae are disks composed of cartilage, which help cushion the spine and give it some flexibility.
How are the brain and spinal cord protected?
Both the brain and the spinal cord are protected by bone: the brain by the bones of the skull, and the spinal cord by a set of ring-shaped bones called vertebrae. They’re both cushioned by layers of membranes called meninges and a special fluid called cerebrospinal fluid.
Which of the following structures protect the spinal cord?
Which is the protective layer of the spinal cord?
The middle layer is called the arachnoid mater. The pia mater is the innermost protective layer and is tightly associated with the surface of the spinal cord. The space between the arachnoid and pia maters is called the subarachnoid space and is where the CSF is located.
Where are the nerve cells located in the spinal cord?
Internal to this peripheral region is the gray, butterfly-shaped central region made up of nerve cell bodies. This central region surrounds the central canal, which is an anatomic extension of the spaces in the brain known as the ventricles and like the ventricles, contains cerebrospinal fluid.
Where do the dorsal and ventral roots of the spinal cord meet?
Dorsal roots and ventral roots come together and exit the intervertebral foramina as they become spinal nerves. peripheral nervous system: The part of the nervous system that consists of the nerves and ganglia on the outside of the brain and spinal cord.
What is the relationship between spinal cord and vertebral column?
Spinal Cord and Vertebrae.png: Relationship between the spinal cord and vertebral column, delineating the cervical, thoracic, and lumbar sections. The spinal cord is protected by three layers of tissue called meninges and divided into three regions.