This semester has been by far the most challenging one I had so far. Although I faced many challenges, the learning experience made it enjoyable. We have seen so far about 12 chapters and by the end of the semester, we would have cover 16 chapters. Although all chapters were very educational, chapters seven and eight were the most interesting to me. The human skeleton has about 206 major bones; it is divided into two parts, the axial skeleton which forms the longitudinal or central core and the appendicular skeleton, which forms the limbs and the bones that connect them to the body. Chapter seven educated us about the axial skeleton. According to our textbook, the axial skeleton has 80 bones. Our book divided these 80 bones into, the skull, which is subdivided into 18 cranial bones and 14 facial bones; bones associated with the skull, which are 6 auditory ossicles and the hyoid bone; the vertebral column subdivided into 24 vertebrae, the sacrum and the coccyx and the thoracic cage, which are 24 …show more content…
The skull has several bones that have air-filled chambers called cavities (207). These sinuses are located in four different bones and these bones constitute the paranasal sinuses. The paranasal sinuses consist of: the frontal sinus, spenoidal sinus, ethmoid air cells and maxillary sinus (224). Another interesting bone that is part of the skull, but more specifically the cranium, is the spenoid bone. Because this bone articulates with all the other cranial bones, it is also known as “keystone of the cranial floor.” On the spenoid bone we find the sella turcica, and within the sella turcica, it’s found the hypophyseal fossa, which has the pituitary gland (217). The pituitary gland produces hormones like the growth hormone. Other cranial bones are: the frontal bone, parietal bones, temporal bones, occipital bone and the ethmoid
The skeletal system works as the frame of the body and it is made up of two hundred and six various bones. The Sections used in the movements of the skeletal system are; the bones, Joints, ligaments and tendons. This system is also divided into two sections known as the Axial and Appendicular skeleton.
s Flat bones Irregular bone Sesamoid bones Anatomy of a Long Bone Epiphyses Metaphyses Epiphyseal growth plate Epiphyseal growth line Diaphysis Periosteum Medullary cavity Endosteum Articular cartilage Microscopic Anatomy Compact bone Osteons Spongy bone Trabeculae Bone Formation Intramembranous ossification Endochondral ossification Cells in Bone Osteogenic cells Osteoblasts Osteocytes Osteoclasts Hormonal Control of Bone Calcitonin Parathyroid hormone Osteology of the Axial Skeleton Frontal Parietal Temporal Zygomatic arch Mastoid process Occipital Foramen magnum Occipital condyles Sphenoid Sella turcica Greater wing Lesser wing Ethmoid Cribriform plate Crista galli Nasal Maxilla Alveolar process Palatine process Zygomatic Zygomatic arch Lacrimal Palatine Inferior nasal conchae
Some examples include the following: clavicle, coccyx, femur, fibula, foramen magnum, mandible, maxilla, metatarsals, ossify, phalanges, radius, scapula, sternum, suture, tibia, ulna, and vertebra. All of these terms are associated with the skeletal system. The mandible, maxilla, and foramen magnum are located in the cervical vertebrae. The clavicle, scapula, and sternum are located in the thoracic vertebrae. The lumbar vertebra contains the humerus, ulna, and radius. The coccyx is located in the sacral vertebrae. The femur, fibula, metatarsals, phalanges, and tibia are located in the appendicular skeleton. The sutures are located in the skull. The vertebrae is the backbone of the body. Ossification is the formation of bone. These terms are important in knowing and learning the skeletal system.
The skeletal system has 6 main functions and makes up 18% of the overall weight of the human body. (Tortora and Derrickson, 2011)
The skeleton produces blood cells. Red bone marrow contains stem cells that produce all of the blood cells.
In this content am going to be talking and explaining the structure and function of the skeletal system. I will be talking about: Axial skeleton, Appendicular. Also highlighting the different types of bone such as long bones, short bones flat bones, irregular bones and sesamoid bones. I am also going to be talking about how your body is
The musculoskeletal system is a made up of the muscular system and the skeletal system. The skeletal system provides the internal framework for the body, it protects the organs by enclosing it and anchors skeletal muscles so that the muscles can contract thus causing movement. The skeleton is divided into two divisions: the axial skeleton and the appendicular skeleton (Taylor & Cohen, 2013, p. 94). The Axial skeleton are the bones that have formed the longitudinal axis of the body which is made up of the skull, the vertebral column and the thoracic cage (Taylor & Cohen, 2013, p. 98). The Appendicular skeleton are the bones of limbs and griddles that are attached to the axial skeleton (Taylor & Cohen, 2013, p. 103).
The picture on the right shows the axial skeleton. The parts in blue is the axial skeleton. The appendicular is the bones and cartilage that support the limbs. There are one hundred and twenty six bones in the appendicular system.
Another important bone of the head and neck is the hyoid bone. The hyoid is closely associated with the skull but is a “floating bone” that does not form a joint with any other bone. It anchors muscles of the tongue and throat and holds open the larynx of the respiratory tract. The auditory ossicles (malleus, incus, and stapes) of each ear are also bones in the
The skull is very important to our head because it protects our brain and creates the shape for our head. Ethmoid bone is one of the bones that associate with the skull bone that protect the vital organs in the nasal cavity and it’s an irregular-shaped bone. Frontal bone is an irregular-shaped and flat bone. It protects the brain and provides support to form the face locating in the front of the skull. Occipital bone is an irregular-shaped and trapezoidal-shaped bone locating in the back of the skull. It creates the back portion to protect the brain. Parietal bone is paired, flat bone create part of the roof and sides of the skull which to protect the brain. Sphenoid bone is unpaired, irregular-shaped bone in the shape similar to a butterfly. It forms part of the base of the cranium and the eye sockets which covering some part of the brain and protecting the eyes. Temporal bone is paired, irregular-shaped, and flat bone. It covers the base and sides of the skull alongside the temporal lobes of the brain which support the skull and temples. Hyoid bone is in the U shape that goes between thyroid cartilage and
The axial skeleton is the part of the skeleton that consists of the bones of the top and the bottom of the vertebrae. In the human skeleton, it consists of 80 bones and is made up of six parts. It is the main area of support and protection for the body and which makes the main core of the skeletal system.
The appendicular skeleton consists of 126 bones containing the appendage bones, the pectoral and pelvic girdles. It is responsible for the ability of movements and the protection of the major organs in the human body.
an adult there are 26 bones that make up the cranium and the facial structure. The cartilage also
The structures that make up the articulatory system include: the oral cavity, the skull, the face and mandible, the nasal cavity, and the pharyngeal cavity. Of all the structures that make up the articulatory system the bones that make up the skull, the facial and cranial bones, contain bones that confuse me. The facial bones include the mandible, the vomer, the maxilla, the nasal bone, the palatine bone, the lacrimal bone, the zygomatic bone, and the inferior nasal concha. The cranial bones include the ethmoid bone, the sphenoid bone, the frontal bone, the occipital bone, the temporal bone, and the parietal bone. The cranial and facial bones that confuse me the most are the palatine bone and the ethmoid bone. The various positions in which
The bones have seven important parts that play a role in the human body which are support, protection, movement, mineral and growth factor storage, blood cell formation, triglyceride storage, and hormone production. Support are when the bones provide a framework of the body and soft organs. Protection is when the bones that protect the brain which is called the skull, the vertebrae protects the spinal cord and the rib cage protects the vital organs. Movement is also known as anchorage are attached by tendons to help our body move by walking, grabbing objects, and breathing. Mineral and growth factor storage is when the bone or bones are filled with calcium and phosphorus to make the bones grow. The blood cell formation is also known as hematopoiesis occurs in the red blood arrow in certain bones. Triglyceride storage also known as