Histological Study Of Spinal Cord

Exercise 22.5

Examine and sketch the cross section of the spinal cord as seen with a microscope. Use low power. Identify the following: central canal, gray commissure, gray matter, spinal ganglion, and white matter.

1. _ The covering of the brain and spinal cord that is vascularized is the (1) .

2. _ Name the three meninges.

5. _ Name the two grooves that almost divide the spinal cord into two equal parts.

7. _ The root of the spinal cord that conducts motor informa tion is called the (7).

8. _ Where specifically within the vertebral column does the spinal cord cease to be a solid structure?

9. _ From what plexus does the sciatic nerve arise?

10. _ The reflex action that causes the leg to extend is achieved by hitting the (10) .

11. _ The thin, web like layer of the meninges is known as the


12. _ What is the name of the fluid that can be found within the subarachnoid space?

13. _ Give the location of the cervical plexus.

14. _ Name the nerves that originate from the brachial plexus.

19. _ Is a negative Babinski a normal reaction for an adult?

20. _ The enlargement on the posterior root of the spinal cord that contains sensory neuron cell bodies is known as the 1201.

21. From your observation of drawings and models, which horn of the gray matter is the widest? Why is it larger than the others?

Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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