
To label:
The features of the spinal cord and the surrounding structures.
Introduction:
The spinal cord is a thin, long, tubular structure. It is composed of nervous tissues that extend from medulla oblongata to the lumbar region of vertebral column. It is elliptical in cross section, being compressed dorsolaterally. The brain and spinal cord are protected by the three layers of tissue known as meninges.

Explanation of Solution
1. Subdural space
2. White matter
3. Dorsal root
4. Ventral root
5. Vertebral body
6. Epidural space
7. Gray matter
(1). Subdural space: It is a potential area between the spinal dura mater and the arachnoid mater. It doesn’t contain any bridging veins. That’s why hemorrhage in this area occurs very rarely.
(2). White matter: It consists of most of the glial cells and myelinated axons. It is white because of myelin (fatty substances) that surrounds the nerve fibers. It is located in the outer region of spinal cord surrounding the gray matter.
(3). Dorsal root: It emerges directly from spinal cord and expands to the dorsal root ganglion. It contains sensory fibers and carries the sensory information, forming afferent sensory root of a spinal nerve.
(4). Ventral root: It contains outgoing efferent motor fibers that carry the information destined to the control motor or to the glandular function. It joins with the dorsal root on the outside of the vertebral column to form a spinal nerve.
(5). Vertebral body: It is the main part of the vertebra and bears about the 80% of the load while standing. It provides an attachment to the discs in between the vertebrae.
(6). Epidural space: It is the area between the vertebral wall and the dura mater. It contains fat and blood vessels. The epidural space is found just outside the dural sac that surrounds the nerve roots and it is filled with the cerebrospinal fluid.
(7). Gray matter: It consists of neuronal cell bodies, glial cells, neuropil, capillaries, and synapses. It is found deep inside the core of spinal cord.
- Subdural space
- White matter
- Dorsal root
- Ventral root
- Vertebral body
- Epidural space
- Gray matter
Want to see more full solutions like this?
Chapter 28 Solutions
Laboratory Manual for Holes Human Anatomy & Physiology Fetal Pig Version
- C MasteringHealth MasteringNu × session.healthandnutrition-mastering.pearson.com/myct/itemView?assignment ProblemID=17396416&attemptNo=1&offset=prevarrow_forward10. Your instructor will give you 2 amino acids during the activity session (video 2-7. A. First color all the polar and non-polar covalent bonds in the R groups of your 2 amino acids using the same colors as in #7. Do not color the bonds in the backbone of each amino acid. B. Next, color where all the hydrogen bonds, hydrophobic interactions and ionic bonds could occur in the R group of each amino acid. Use the same colors as in #7. Do not color the bonds in the backbone of each amino acid. C. Position the two amino acids on the page below in an orientation where the two R groups could bond together. Once you are satisfied, staple or tape the amino acids in place and label the bond that you formed between the two R groups. - Polar covalent Bond - Red - Non polar Covalent boND- yellow - Ionic BonD - PINK Hydrogen Bonn - Purple Hydrophobic interaction-green O=C-N H I. H HO H =O CH2 C-C-N HICK H HO H CH2 OH H₂N C = Oarrow_forwardFind the dental formula and enter it in the following format: I3/3 C1/1 P4/4 M2/3 = 42 (this is not the correct number, just the correct format) Please be aware: the upper jaw is intact (all teeth are present). The bottom jaw/mandible is not intact. The front teeth should include 6 total rectangular teeth (3 on each side) and 2 total large triangular teeth (1 on each side).arrow_forward
- 12. Calculate the area of a circle which has a radius of 1200 μm. Give your answer in mm² in scientific notation with the correct number of significant figures.arrow_forwardDescribe the image quality of the B.megaterium at 1000X before adding oil? What does adding oil do to the quality of the image?arrow_forwardWhich of the follwowing cells from this lab do you expect to have a nucleus and why or why not? Ceratium, Bacillus megaterium and Cheek epithelial cells?arrow_forward
- 14. If you determine there to be debris on your ocular lens, explain what is the best way to clean it off without damaging the lens?arrow_forward11. Write a simple formula for converting mm to μm when the number of mm's is known. Use the variable X to represent the number of mm's in your formula.arrow_forward13. When a smear containing cells is dried, the cells shrink due to the loss of water. What technique could you use to visualize and measure living cells without heat-fixing them? Hint: you did this technique in part I.arrow_forward
- 10. Write a simple formula for converting μm to mm when the number of μm's are known. Use the variable X to represent the number of um's in your formula.arrow_forward8. How many μm² is in one cm²; express the result in scientific notation. Show your calculations. 1 cm = 10 mm; 1 mm = 1000 μmarrow_forwardFind the dental formula and enter it in the following format: I3/3 C1/1 P4/4 M2/3 = 42 (this is not the correct number, just the correct format) Please be aware: the upper jaw is intact (all teeth are present). The bottom jaw/mandible is not intact. The front teeth should include 6 total rectangular teeth (3 on each side) and 2 total large triangular teeth (1 on each side).arrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education





