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The Atlas - C1.

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What type of body cavity does a jellyfish have?

Pisces or fish have true internal body cavity.


Why is an intervertebral disc not present between C1 and C2?

yes. the atlas and axis, or C1 and C2, do not have an intervertebral disc, nor an intervertebral foramen, between them. C1 looks like an oval. it has two lateral masses (no vertebral body) where it makes contact with the occiput and C2. the inferior articular facets of the C1 and the superior articular facets of C2 form 2 joints, one on each side. there is also a third joint formed by the dens, or odontoid process, of C2 and the interior of the anterior arch of C1. this is the joint you use to shake your head "no".


What is an anatomical lever?

An anatomical lever is a system in the body where a rigid structure (bone) pivots around a joint to create movement. It allows muscles to exert force and movement to occur in response to that force. The three types of levers in the body are classified based on the relative positions of the effort, resistance, and fulcrum.


What division lacks a well differentiated body design?

The division that lacks a well-differentiated body design is often referred to as the division of "primitive" or "simplistic" organisms, such as certain members of the phylum Porifera (sponges). Sponges are characterized by their simple structure, lacking true tissues and organs, and they rely on a porous body plan for filter feeding. This simplicity distinguishes them from more complex multicellular organisms that have specialized structures and functions.


Why are atlas sacral and urostyle classified as atypical vertebrae?

The first cervical vertebra (C1) and the second cervical vertebra (C2) are atypical vertebrae due to the fact that the structures of these vertebrae are unlike the rest of the cervical spine vertebrae. The C1, also known as the atlas, is a ring-like structure which allows the beginning of the spinal cord to pass through form the base of the skull. The C2, also known as the axis, is the largest of the cervical vertebrae in vertical dimension as it contains an extension of bone called the odontoid process that extends up into the ring of the atlas. This area of the neck is the most freely moveable as the majority of side-to-side rotation occurs at C1 on C2 and is also most important neurologically as this area of the spinal cord controls heart, breathing and posture of the human being.

Related Questions

What is a vertebral structure pivots on C2 and lacks a body?

The vertebral structure that pivots on C2 and lacks a body is the dens (odontoid process). It is a bony projection that extends from the axis (C2 vertebra) and serves as the pivot point for rotation of the head.


What is the spot where a lever turns or pivots?

The fulcrum is where a lever pivots.


How do you play sitsiritsit on record?

Here~ D2 D2 D2 B D2 C2 B A C2 C2 C2 A C2 B A G D2 D2 D2 G G A B C2 C2 C2 C2 D2 C2 B A G D2 D2 D2 B D2 D2 D2 B D2 D2 D2 E2 D2 D2 B C2 C2 C2 A C2 C2 C2 A C2 C2 C2 B2 C2 B A G


What is the physical distribution of c2?

It cAN help our body regulate and it can provide our fat .it is also help our body fit.


What is a term for the point of which a lever pivots?

The point where a lever pivots is called a fulcrum.


When blood comes out of the body and purple in color. does this mean it lacks oxygen?

I would think this means it lacks Iron.


What are the diseases caused when your body lacks carbohydrates?

diabetes


What would c2 plus c2 plus c2 plus c2 be simplified to?

12c


The fixed point that a lever pivots around is called the?

A lever pivots on a fulcrum.


What are the flute chords of fireworks?

A c2 c2 c2


Occurs when your body lacks the water it needs to function?

Dehydration


What is the movement between C1 and C2 synovial pivot joint?

This joint forms a pivot motion. When you turn backwards rapidly to open a door or when a dancer pivots on one foot these are the motions a pivot allows. In the joint between C1 and C2, this pivot allows you to turn your head to the left and to the right.