The human head contains 22 bones, consisting the cranium and the facial bones. The cranium is formed by 8 bones: the frontal bone, two parietal bones, two temporal bones, the occipital bone in the back, the ethmoid bone behind the nose, and the sphenoid bone. The face consists of 14 bones including the maxilla (upper jaw) and mandible (lower jaw).
2006-06-23 08:49:13
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answer #1
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answered by Gray Matter 5
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There are a total of 14 bones in the Head.
Bones of the head
The bones of the human head are collectively called the skull. The skull is divided into the cranium (all the skull bones except the mandible) and the mandible (or jawbone). One feature that distinguishes mammals and non-mammals is that there are also three ear bones (called ossicles):
malleus (hammer)
incus (anvil)
stapes (stirrup)
These ossicles are important components in the sense of hearing in mammals. Other animals have a single bone that is usually called the columella.
The cranium can be divided into a skull cap (or calvarium) and base. The cranium consists of several bones which fuse together at junctions called sutures. Several sutures join to form a pterion. This process of bone fusion occurs in utero to protect the most important organ in the body, the brain. Although most fusing is complete before birth, there are large areas of fibrous tissue (called fontanelles) where fusion is incomplete until puberty. The fontanelle above the forehead in newborns and young children is particularly easy to identify by touch.
The adult cranium is separated into several bones, several of which are mirrored on the right and left sides of the skull. Descriptions of these bones often use terms of anatomical position to more accurately depict how the bones relate to each other:
Heikenwaelder Hugo : Skulltwo maxillae (one on each side of the head) that cover the inferior and medial to the eye socket (or orbit)
two zygomatic bones, inferior and lateral to the orbit
two temporal bones, covering an area where the ears are located
a single frontal bone, superior to the orbit
two parietal bones, posterior to the frontal bone and superior to the temporal bone
an occipital bone at the back of the head
several more internal bones which are not easily seen which are
a sphenoid bone
an ethmoid bone
two lacrimal bones
two nasal bones
two palatine bones
two nasal conchae (inferior)
a vomer
There are a total of 14 bones in the face.
The rest of the skull is the mandible, a bone attached to the cranium at the temporomandibular joint (TMJ). This important joint allows the mandible to move, using the TMJ as a pivot to achieve actions such as chewing (mastication), eating, and speech.
When viewed from below (inferiorly) the skull contains several holes (or foramina), the largest of which is the foramen magnum through which the spinal cord passes. Other holes allow for the passage of arteries, veins, and nerves (the cranial nerves). When the skull cap (or calvarium) is removed, the base of the skull is viewed from above, there are three clear impressions or fossa. The most anterior of these is the anterior cranial fossa, where, amongst other things, upon which the frontal lobe of the brain lies. The butterfly-shaped middle cranial fossa is the second most anterior depression, the wings of which serve as a base for the brain's temporal lobes. The body of the butterfly houses an important structure, the sella turcica (Latin for Turkish saddle), which encapsulates the pituitary gland, one of the major organs of the endocrine system. The posterior cranial fossa is where the foramen magnum is located and where the posterior lobe of the brain and the cerebellum lie.
2006-06-23 19:00:28
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answer #2
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answered by Smilez 3
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There are at least 22 bones in a Human Skull, although I've seen some say 23, even as many as 29
2006-06-23 08:48:40
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answer #3
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answered by chairman_of_the_bored_04 6
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The bones of the human head are collectively called the skull. The skull is divided into the cranium (all the skull bones except the mandible) and the mandible (or jawbone).
There are a total of 14 bones in the face.
2006-06-23 10:38:13
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answer #4
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answered by jqpaskmenow_ 02 3
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This Site Might Help You.
RE:
How many bones are in the human head?
2015-08-07 01:14:29
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answer #5
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answered by Anonymous
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The human skull consists of 22 bones. Eight make up the cranium, and fourteen form the facial skeleton.
2006-06-23 08:51:19
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answer #6
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answered by Anonymous
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22 bones
2006-06-23 09:22:58
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answer #7
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answered by Gabriel S 2
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just the skull i think the ears arent bones and the nose has a little over hang off the skull but its still one piece
2006-06-23 08:48:01
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answer #8
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answered by Brian b 2
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28
Anyone saying less is forgetting the ear bones.
2006-06-23 08:48:27
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answer #9
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answered by Anonymous
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there are 22 bones all together
2006-06-23 08:51:13
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answer #10
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answered by NAT 3
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