The Atlas - C1.
Pisces or fish have true internal body cavity.
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".
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.
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.
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.
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.
The fulcrum is where a lever pivots.
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
It cAN help our body regulate and it can provide our fat .it is also help our body fit.
The point where a lever pivots is called a fulcrum.
I would think this means it lacks Iron.
diabetes
12c
A lever pivots on a fulcrum.
A c2 c2 c2
Dehydration
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.