The seven bones of the cervical spine that make up the human neck are known as C1 through C7 from top to bottom, according to Healthline. The vertebra closest to the skull, or C1, is known as the atlas, and the vertebra directly below the atlas is called the axis.Know More
The seven cervical vertebrae are the smallest backbones in the human body, and the vertebra closest to the skull is the smallest of the seven neck bones. Each cervical vertebra has a cervical disc between it, and these bones support the head. Muscles attached to these vertebrae rotate, flex and extend the neck, notes Spine-health.com. The atlas and axis are specialized vertebrae that help rotate the head side-to-side, whereas the other five cervical vertebrae more closely resemble larger vertebrae further down the spine.
The seven cervical vertebrae protect the spinal cord as it protrudes from the brain. The Longus colli muscle lies between the vertebrae and the rest of the neck. This muscle extends into the upper back and helps move the neck and keep the neck stable. The Longus colli is the muscle injured most often in a car accident involving whiplash, notes Healthline. Three other muscles connect to the neck vertebrae to help move the neck, head and back.Learn more in Bones
There are 26 small bones in the foot. There are seven tarsal bones and 14 phalanges. In the ankle area there is a cuboid bone, navicular bone, cuneiform bone, calcaneus, and a talus.Full Answer >
According to Healthline, the human arm is composed of three bones, divided amongst two anatomical sections. The upper arm or brachium, which is the region between the shoulder and elbow joint, contains the humerus. The forearm or antebrachium contains two parallel bones, the radius and ulna.Full Answer >
The human hand consists of 27 bones. There are eight carpal bones, and 14 are bones of the fingers, which are called proximal, intermediate and distal bones. Five metacarpal bones connect the fingers to the wrist and make up the palm of the hand.Full Answer >
According to Kenhub, the skull's two zygomatic bones, also known as the zygoma, support facial tissue, pronounce the shape of the cheeks and form the lower, outer portion of the orbital socket. The zygomatic bones house the insertion points for the masseter muscles, which are one of the four types of muscles required for chewing.Full Answer >