Joints and Body Movements
Joints and Body Movements
Laszlo Vass, Ed.D. Version 42-0014-00-01
Purpose:
What is the purpose of this exercise? In this exercise I will exam how joints function and thereby discover how they allow for movement in the body. Joints are where two bones come together. The joints hold the bones together and allow for movement of the skeleton. All of the bones, except the hyoid bone in the neck, form a joint. Joints are often categorized by the amount of motion they allow. Some of the joints are fixed, like those in the skull, allow for no movement. Other joints, like those between the vertebrae of the spine, allow for some movement. Most of the joints are free moving synovial joints. In this exercise I will exam how joints function and thereby discover how they allow for movement in the body.
Are there any safety concerns associated with this exercise? If so, list what they are and what precautions should be taken. Basic lab precautions, including keep a clean workspace and washing your hand when dealing with raw poultry. In order to ensure that this occurs layout the equipment beforehand in a clean sterile environment and follow safe work practices.
Exercise 1: Questions
A. As you observe the skull, explain how the structure of the sutures between the cranial bones is related to the overall function of the cranium. Children’s heads needs to squeeze through the birth canal during delivery, humans during infancy have evolved with a soft skull composed of many different bony plates that meet at regions called cranial "sutures". These sutures also allow the skull to grow rapidly during the first year of life, at which time the bones start to slowly fuse together. This allows the skull to continue to protect the skull during early development.
B. Why are synarthroses an important component of fibrous joints? These joints are weight bearing and the joints
Laszlo Vass, Ed.D. Version 42-0014-00-01
Purpose:
What is the purpose of this exercise? In this exercise I will exam how joints function and thereby discover how they allow for movement in the body. Joints are where two bones come together. The joints hold the bones together and allow for movement of the skeleton. All of the bones, except the hyoid bone in the neck, form a joint. Joints are often categorized by the amount of motion they allow. Some of the joints are fixed, like those in the skull, allow for no movement. Other joints, like those between the vertebrae of the spine, allow for some movement. Most of the joints are free moving synovial joints. In this exercise I will exam how joints function and thereby discover how they allow for movement in the body.
Are there any safety concerns associated with this exercise? If so, list what they are and what precautions should be taken. Basic lab precautions, including keep a clean workspace and washing your hand when dealing with raw poultry. In order to ensure that this occurs layout the equipment beforehand in a clean sterile environment and follow safe work practices.
Exercise 1: Questions
A. As you observe the skull, explain how the structure of the sutures between the cranial bones is related to the overall function of the cranium. Children’s heads needs to squeeze through the birth canal during delivery, humans during infancy have evolved with a soft skull composed of many different bony plates that meet at regions called cranial "sutures". These sutures also allow the skull to grow rapidly during the first year of life, at which time the bones start to slowly fuse together. This allows the skull to continue to protect the skull during early development.
B. Why are synarthroses an important component of fibrous joints? These joints are weight bearing and the joints