Back
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

backbone

Primary Information
Secondary Information

Definition

Backbone is a central structure that supports other parts. In anatomy, the backbone is the spinal column, which is a series of bones that support the head, neck, and torso.

The backbone is made up of 33 bones, called vertebrae. The vertebrae are stacked on top of each other, and they are connected by ligaments and muscles. The backbone is very flexible, which allows us to bend and twist our bodies.

The backbone also protects the spinal cord, which is a bundle of nerves that runs from the brain to the rest of the body. The spinal cord carries messages from the brain to the muscles, and it also carries messages from the sense organs to the brain.

How can the word be used?

All vertebrates have backbones.

backbone

Different forms of the word

Noun: backbone (the main support or structure of something).

Adjective: backboned (having a strong backbone).

Verb: backbone (to provide with a backbone).

Participle: backboned.

Etymology

The word "backbone" comes from the Old English word bac-, which means "back," and bon, which means "bone." The word "backbone" originally referred to the spine, but it is now used more generally to refer to the main support or structure of something.

Question

How many bones can be found in a human backbone?

AQA Science Exam Question and Answer

Question:

Define the term "backbone" in the context of human anatomy. Describe the primary function of the backbone and its role in protecting vital organs.

Answer:

In the context of human anatomy, the "backbone" refers to the vertebral column, which is a series of bones (vertebrae) stacked on top of each other, forming the central supporting structure of the body. The primary function of the backbone is to provide structural support and flexibility to the body, enabling various movements, such as bending, twisting, and turning. Additionally, the backbone plays a crucial role in protecting the spinal cord, which is a vital part of the central nervous system. The spinal cord carries nerve signals between the brain and the rest of the body, and the backbone's bony structure shields it from potential damage and injuries.