GROSS ANATOMY

GROSS ANATOMY

BODY CAVITIES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
contains the spinal cord
A
spinal
B
cranial
C
buccal
D
orbital
Explanation: 

Detailed explanation-1: -The spinal cord lies inside the spinal column, which is made up of 33 bones called vertebrae. Five vertebrae are fused together to form the sacrum (part of the pelvis), and four small vertebrae are fused together to form the coccyx (tailbone).

Detailed explanation-2: -A column of nerve tissue that runs from the base of the skull down the center of the back. It is covered by three thin layers of protective tissue called membranes. The spinal cord and membranes are surrounded by the vertebrae (back bones).

Detailed explanation-3: -The spinal cord is a group of nerves that serves as a messaging center between the brain and parts of the body, but it does not have a direct impact on other organs. Due to its common tissue throughout and functioning as a unit to support the rest of the body, the spinal cord is an organ – similar to skin.

Detailed explanation-4: -The spinal nerve contains motor and sensory nerve fibers to and from all parts of the body. Each spinal cord segment innervates a dermatome (see below and Figure 3.5). Similar cross-sectional structures at all spinal cord levels (Figure 3.1).

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