The innermost membrane layer surrounding the brain and spinal column is the:
a. dura mater.
b. meninges.
c. arachnoid.
d. pia mater.
D
Because of the vital and essential role of the CNS in the body's regulatory processes, the brain and spinal cord have two protective coverings: an outer covering consisting of bone and an inner covering of membranes called the meninges. The meninges is a collective term for three distinct layers surrounding the brain and spinal column—the dura mater (outermost membrane layer), the arachnoid, and the pia mater (innermost membrane layer).
You might also like to view...
During respiration by ground squirrels,
a. CO2 is produced. b. O2 is consumed. c. ATP is produced. d. heat is produced. e. all of the choices are correct.
Which of the following statements regarding cDNA libraries is false?
a. They are usually double stranded DNA. b. They are composed of DNA synthesized with the use of reverse transcriptase. c. They are composed of DNA synthesized from an mRNA template. d. They contain introns and exons. e. They contain DNA that is complementary to the mRNA from which it was synthesize
The early embryos of vertebrates follow the same pathway of development; one structure that all vertebrate embryos have in common is the ________, which serves as a primitive support structure
Fill in the blank(s) with correct word
A molecule is considered a nutrient if it ______.
a) provides energy b) provides building blocks for the body/cell c) helps regulate the metabolic processes of the body d) A and C are both correct but not B e) A, B, and C are all correct.