Skull bones anatomy

Learn skull anatomy with skull bones quizzes and diagrams Author: Molly Smith DipCNM, mBANT • Reviewer: Last reviewed: September 14, 2022 Reading time: 3 minutes So, you want to learn the anatomy of the skull? You’ve come to the right place. How can you go about learning it? In this article, we’re going to show you. Get your printer, pens and pencils at the ready; grab a drink, and get comfy. It’s time to learn! Overview image of an anterior view of the skull The idea behind using labeled diagrams is to get an overview of all of the structures within a given area. When it comes to testing your memory of these structures, previously having seen them altogether as a group should help you to remember them more easily. Before you use our skull diagrams free to download below, it’s helpful to get some context. Understanding the function of a structure is sure to help you remember it better. For this, take a look at our video below on the anterior and lateral views of the skull. Blank Skull Diagram Once you’ve done that, it’s time to learn anatomy with our skull labeling quiz. We’ve created a blank skull diagram free for you to download as A PDF below. You can also download the labeled version and use this to make some notes. Ready to test your knowledge? Are there any other tools you can use to learn skull anatomy? Absolutely - the skull diagrams were simply a warm up! The most powerful tool for quick, easy, stress-free learning of the skull bones are quizzes. Let’s explore the...

The frontal bone, most commonly referred to as the forehead, supports the front and back of the skull. In infancy, the frontal bone is connected by frontal suture, a joint that divides the two halves of the frontal bone. As an infant starts to grow, this frontal suture fuses the frontal bone together into one solid piece. The primary functions of the frontal bone are to protect the brain and support the structures of the head, such as the nasal passages and eyes. In between the brain and frontal bone is cerebrospinal fluid. This fluid is in between the meninges, which surround the brain. These padded layers and cerebrospinal fluid keep the brain safe, and prevent it from hitting against the skull. While many nerves pass through the frontal bone to provide motor and sensory function to the different regions of the head, the frontal bone itself doesn’t provide and motor or sensory function. However, the center of the frontal bone has a sponge-like consistency and is filled with stem cells that go on to form With hyperostosis frontalis interna a portion of the the frontal bone is thicker than normal. A variety of conditions have been associated with it — including seizures, headaches, obesity, diabetes insipidus, excessive hair growth, and sex gland disturbances — but no cause-and-effect relationship has been established. It is quite common; as many as 12% of women may have some degree of thickening of the frontal bone. (Insert ref here) Most experts believe this finding is u...

Article: • • • • • Images: • Gross anatomy The base of the skull is a bony diaphragm composed of a number of bones - from anterior to posterior: • • • • • • • some texts state that the base does not include the parietal bones These bones are separated from each other by • • • • • • Regions The inner surface of the base of the skull is divided by the • • • Additionally, a poorly-defined region termed the Foramina The base of the skull is perforated by numerous foramina which allow vessels and nerves to pass through the base of the skull allowing the intracranial cavity to communicate with the rest of the body - see main article:

The most commonly fractured bones include the distal radius (on the thumb side of your wrist), the ankle, the femur (thigh bone), the humerus (upper arm bone), and the metacarpals (bones of the palms). With osteoporosis, the most commonly fractured bones are the vertebrae (in the spine). What Is the Purpose of the Skeletal System? The primary purpose of the skeletal system is to give the body its shape and to provide attachment points for the muscles that move the body. • X-rays: This common test can help diagnose conditions that affect the bones and joints, such as fractures or arthritis. • Computed tomography (CT scan), computerized axial tomography (CAT scan): This test provides three-dimensional pictures that help diagnose fractures that aren't clear on X-rays, or other bone conditions, such as cancer. • Magnetic resonance imaging (MRI): This type of imaging often helps diagnose conditions that affect soft tissues of the skeletal system (ligaments, cartilage). • Bone scintigraphy (bone scan): These scans can provide detailed information about a bone injury or condition, such as the staging of bone cancer. • Positron emission tomography (PET scan): This test, which uses an injected radioactive tracer, can help stage bone (and other types of) cancer. • Bone density test: These tests are primarily for determining how dense bones are—the key factor in diagnosing osteoporosis. • Joint aspiration: This test involves removing a sample of fluid from a joint to help diagnose in...

magicmine / iStock / Getty Images Anatomy The maxilla is centrally located within the skull and makes up the center of the face. The lower portion of the maxilla is connected to the upper teeth through the alveolar process. The roots of the teeth form grooves that extend up the anterior portion of the maxilla. Unfortunately, fractures in this area also often affect your ability to eat. If the fracture is small and not extensive it may heal in time with rest, a soft diet, and pain medication. Larger more extensive fractures of the maxilla may need to be surgically repaired, especially if trauma to surrounding nerves or blood vessels has been sustained. The sinus cavities can become infected with bacteria or other germs like fungi. In the case of a bacterial infection, antibiotics are necessary. Allergic conditions can cause persistent inflammation and swelling of the sinuses and in some cases leads to abnormal growths inside of the sinus cavities called polyps which require surgical removal.

• 1 Anatomical Structure • 1.1 Body • 1.2 Greater Wing • 1.3 Lesser Wing • 1.4 Pterygoid Process • 2 Muscular Attachments • 3 Articulations • 4 Clinical Significance – Transsphenoidal Surgery The sphenoid bone is one of the eight bones that make up the cranium – the superior aspect of the skull that encloses and protects the brain. Its name is derived from the Greek ‘sphenoeides’, to mean wedge-shaped. In this article, we shall look at the anatomy of the sphenoid bone – its location, structure, and clinical significance. Anatomical Structure The sphenoid bone is said to be ‘ butterfly-shaped‘. It consists of a body, paired greater wings and lesser wings, and two pterygoid processes. Body The body lies at the centre of the sphenoid bone, and is almost completely cubical in shape. It contains the sphenoidal sinuses, which are separated by a septum – meaning that the sphenoid body is essentially hollow. The body articulates with the ethmoid bone anteriorly, and it is here that the sinuses open up into the nasal cavity. The superior surface of the sphenoid body contains some important bony landmarks: • Sella turcica – a saddle-shaped depression. It has three parts: • Tuberculum sellae – forms the anterior wall of the sella turcica, and the posterior aspect of the chiasmatic groove. • Hypophyseal fossa – the deepest part of the sella turcica, where the pituitary gland is located. • Dorsum sellae – forms the posterior wall of the sella turcica. • Chiasmatic groove – a sulcus for...

Learning Objectives By the end of this section, you will be able to: • List and identify the bones of the cranium and facial skull and identify their important features • Locate the major suture lines of the skull and name the articulating bones that form them • Define the paranasal sinuses and identify the location of each • Name the bones that make up the walls of the orbit and identify the openings associated with the orbit • Identify the bones and structures that form the nasal septum and nasal conchae, and locate the hyoid bone • Identify the bony openings of the skull The skull is the skeletal structure of the head that supports the face and protects the brain. It is subdivided into the facial bones and the cranium, or cranial vault ( In the adult, the skull consists of 22 individual bones, 21 of which are immobile and united into a single unit. The 22nd bone is the mandible (lower jaw), which is the only moveable bone of the skull. Figure 7.3.1 – Parts of the Skull: The skull consists of the rounded cranium that houses the brain and the facial bones that form the upper and lower jaws, nose, orbits, and other facial structures. Watch this Anterior View of Skull The anterior skull consists of the facial bones and provides the bony support for the eyes, teeth and structures of the face and provides openings for eating and breathing. This view of the skull is dominated by the openings of the orbits and the nasal cavity. Also seen are the upper and lower jaws, with their...