Joints and Body Movements

Topics: Synovial joint, Joint, Bone Pages: 4 (685 words) Published: June 18, 2013
Joints and Body Movements
Laszlo Vass, Ed.D. Version 42-0014-00-01
Lab RepoRt assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor. Purpose:

What is the purpose of this exercise?
Are there any safety concerns associated with this exercise? If so, list what they are and what precautions should be taken.

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.

At birth, flat plates join together by sutures. These sutures are what allow the skull to pass through the birth
canal and allow brain growth. They end up fusing together to form an adult skull.

B. Why are synarthroses an important component of fibrous joints?

They allow virtually no movement. They are rigid and immovable like joints in the skull.

exeRcise 2: Questions

A. Cartilaginous joints exhibit amphiarthroses. Why is this important?

It allows the bones connects to actually move. It provides stability, cushioning and weight bearing.

B. Structurally, how are cartilaginous joints similar?

They may be immovable or slightly movable.

exeRcise 3: Questions

A. Which type of synovial joint has the least amount of movement? Synarthrosis

B. Why are diarthroses important for synovial joints? Diarthroses are...
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