Table of Contents
What does the occipital bone control?
The occipital lobes sit at the back of the head and are responsible for visual perception, including colour, form and motion. Damage to the occipital lobe can include: Difficulty with locating objects in environment.
Does everyone have occipital bone?
In addition to Neanderthals, fossilized early modern Homo sapiens of Europe have been found to have occipital buns. Many current-day modern human populations, including Lapps, the bushmen of South Africa, and Australian aboriginals, have frequent occurrences of occipital buns.
Is occipital bone bump normal?
External Occipital Protuberance – Normal Lump on Back of Head: The lump you feel at the base of the skull in back is normal. It is a bony part of the skull that sticks out and feels hard. If you feel carefully, you will find one on yourself or other children.
Can you feel your occipital bone?
The bony skull bump — known as an external occipital protuberance — is sometimes so large, you can feel it by pressing your fingers on the base of your skull.
Why do guys have a bump on the back of their head?
A bump on the back of the head has many possible causes, including injuries, cysts, fatty growths, inflamed hair follicles, and bone spurs. Bumps on this part of the body can be hard or soft, and they can vary in size. Injuries are a common cause of bumps and lumps on the back of the head.
Is it normal to have a bump on the back of your head?
Finding a bump on the head is very common. Some lumps or bumps occur on the skin, under the skin, or on the bone. There are a wide variety of causes of these bumps. In addition, each human skull has a natural bump on the back of the head.
What does the occipital bone look like?
The occipital bone (/ˌɒkˈsɪpɪtəl/) is a cranial dermal bone and the main bone of the occiput (back and lower part of the skull). It is trapezoidal in shape and curved on itself like a shallow dish. The occipital bone overlies the occipital lobes of the cerebrum.
What happens if the occipital bone is damaged?
Injury to the occipital lobes may lead to vision impairments such as blindness or blind spots; visual distortions and visual inattention. The occipital lobes are also associated with various behaviors and functions that include: visual recognition; visual attention; and spatial analysis.
What can damage the occipital lobe?
As is the case with other traumatic brain injuries, damage to the occipital lobe most often occurs as a result of vehicle crashes, falls, and firearms. Taking steps to prevent these injuries could save you or a loved one a lifetime of the added stress and depression that accompanies traumatic brain injuries.
Is it normal to have a bone in the back of your head?
The occipital bone is a bone that covers the back of your head; an area called the occiput. The occipital bone is the only bone in your head that connects with your cervical spine (neck). The occipital bone surrounds a large opening known as the foramen magnum.
What are the two lumps on back of head?
Occipital lymph nodes are those found on the back of your head, near the base of your skull. Healthcare professionals may also call them posterior cervical lymph nodes. Read on to learn about the potential causes of swelling in these nodes.
Is it normal to have a bone on the back of your head?
What happens when the occipital bone is damaged?
What causes occipital damage?
Occipital neuralgia can be the result of pinched nerves or muscle tightness in the neck. It can also be caused by a head or neck injury.
What is the occipital bone?
The occipital bone houses the back part of the brain and is one of seven bones that come together to form the skull. It is located next to five of the cranium bones. As a person ages, their occipital bones will fuse to the other bones of their skull.
Where are the condylar parts of the occipital bone?
The condylar parts of the occipital bone, on which the occipital condyles are located, are situated lateral to the foramen magnum on the external surface. The alar tubercle, which gives attachment to the alar ligament, is situated on the medial side of each condyle.
How many fused occipital bones do mammals have?
Most mammals also have a single fused occipital bone, formed from the four separate elements around the foramen magnum, along with the paired postparietal bones that form the rear of the cranial roof in other vertebrates. Position of occipital bone (shown in green).
What does the superior angle of the occipital bone articulate with?
The superior angle of the occipital bone articulates with the occipital angles of the parietal bones and, in the fetal skull, corresponds in position with the posterior fontanelle .