Activity 3: Exercises
Watch this video to view a rotating and exploded skull with color-coded bones. Which bone (yellow) is centrally located and joins with most of the other bones of the skull? The link of the video at the study guide. View another video to review the two processes that give rise to the bones of the skull and the body. The access to the video is in the study guide. Answer this question:
Which bone (yellow) is centrally located and joins with most of the other bones of the skull? The link of the video at the study guide.
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The yellow-colored bone seen in the video is known as the sphenoid bone.
What are the two mechanisms by which the bones of the body are formed and which bones are formed by each mechanism?
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There are two forms of bone ossification: intramembranous ossification and endochondral ossification. The former directs the conversion of mesenchymal tissue to bone, resulting in the flat bones of the skull, clavicle, and the majority of the cranial bones. Additionally, it is in charge of the replacement of cartilage with bone. It is responsible for the formation of long bones, vertebrae, and ribs. While, endochondral ossification is the process through which bone tissue is created during the early stages of fetal development.
What are the synovial joints being described in the video?
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Hinge joint, ball and socket joint, pivotal joints, plane joint, condyloid joint, and saddle joint
Which type of synovial joint allows for the widest ranges of motion?
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The synovial joint, ball and socket, allow the widest range of motion. Its structure is a one rounded bone's ball-shaped surface that fits into another bone's cup-like depression. With this, it makes it more capable for the body part to move an indefinite number of axes. One of the famous examples of this joint is found in the shoulders and hips.