Bios251 Week 7 Lab
BIOS251 Week 7 Lab Exercise
Joints
To complete this worksheet, select:
Module: Support and Movement Activity: Anatomy Overviews Title: Joints
1. a. From the main Joints page, click Fibrous Joints and identify each of the following structural joint types.
Suture
Syndesmoses
Gomphosis
Suture Syndesmoses Gomphosis
b. Why are sutures and gomphoses classified as synarthroses?
In these types of joints the fibers are very short and allow for little of no movement. Synarthroses joints come together at a point at which adjacent bones are bound by collagen fibers that emerge from the matrix of one bone, cross the space between them, and penetrate into the matrix of the other.
c. Syndesmoses are functionally a bit different. They are classified as amphiarthroses. Explain why.
Amphiarthrosis is a type of continuous, slightly moveable joint. In syndesmoses, the fibers are longer and the attached bones are more movable. There is a greater distance between the articulating surfaces. The connective tissue is a little more dense in the syndesmoses joints compared to the synarthroses joints.
2. a. Return to the main Joints page and click Cartilaginous Joints. Identify each of the following.
Synchondroses Symphysis
b. Describe the role of hyaline and fibrocartilage in each of these types of joints.
Synchondroses is a joint in which the bones are bound by hyaline cartilage. An example is the temporary joint between the epiphysis and diaphysis of a long bone in a child, formed by the cartilage of the epiphyseal plate.
Symphysis is where two bones are joined by fibrocartilage. In the diagram to the right the pubic symphysis, in which the right and left pubic bones are
Joints
To complete this worksheet, select:
Module: Support and Movement Activity: Anatomy Overviews Title: Joints
1. a. From the main Joints page, click Fibrous Joints and identify each of the following structural joint types.
Suture
Syndesmoses
Gomphosis
Suture Syndesmoses Gomphosis
b. Why are sutures and gomphoses classified as synarthroses?
In these types of joints the fibers are very short and allow for little of no movement. Synarthroses joints come together at a point at which adjacent bones are bound by collagen fibers that emerge from the matrix of one bone, cross the space between them, and penetrate into the matrix of the other.
c. Syndesmoses are functionally a bit different. They are classified as amphiarthroses. Explain why.
Amphiarthrosis is a type of continuous, slightly moveable joint. In syndesmoses, the fibers are longer and the attached bones are more movable. There is a greater distance between the articulating surfaces. The connective tissue is a little more dense in the syndesmoses joints compared to the synarthroses joints.
2. a. Return to the main Joints page and click Cartilaginous Joints. Identify each of the following.
Synchondroses Symphysis
b. Describe the role of hyaline and fibrocartilage in each of these types of joints.
Synchondroses is a joint in which the bones are bound by hyaline cartilage. An example is the temporary joint between the epiphysis and diaphysis of a long bone in a child, formed by the cartilage of the epiphyseal plate.
Symphysis is where two bones are joined by fibrocartilage. In the diagram to the right the pubic symphysis, in which the right and left pubic bones are