BIO 201-- Rio Salado Exam 2

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Skeletal System/ Muscular System
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1
  1. Name the three functional categories of joints.

Chapter 8

1.Synarthroses

2. Amphiarthroses

3. Diarthroses

2

What is the name of the functional joint that is immovable?

Synarthroses

3

What is the name of the functional joint that is slightly moveable?

amphiarthroses

4

What is the name of the functional joint that is freely movable?

Diarthroses

5
  1. Name the three structural categories of joints

1. Fibrous Joints

2. Cartilaginous Joints

3. Synovial Joints

6

Which of the structural joint types is generally considered immovable

Fibrous Joint

7

Which of the structural joint types is generally considered freely movable?

Synovial Joints

8

Which of the structural joint types is considered both rigid and slightly movable?

Cartilaginous

9

Describe what makes a fibrous joint unique (tissue type/cavity/ movement ability)

- Joined by connective tissue

- No joint cavity

- amount of movement depends on connective tissue length

10

What are three types of Fibrous Joints?

sutures

syndesmoses

gomphoses

11

What Joint type is found in the skull?

Sutures

12

Describe the characteristics of the fibrous joint, Sutures?

- wavy articulating bone edges interlock and the junction is completely filled by a minimal amount of very short connective tissue

- the fibrous tissue ossifies and the skull bones fuse into a single unit as a protective adaptation to protect the brain from damage.

13

Describe the characteristics of the fibrous joint, Syndesmoses?

-the bones are connected by a ligament

- the amount of movement depends on the length of the connective tissue

14

Describe the characteristic of the fibrous joint, Gomphoses?

- A peg-in-socket

- The fibrous connection is the short periodontal ligament

- tooth in its bony alveolar socket

15

Describe the cartilaginous joints?

The articulating bones are united by cartilage.

They lack a joint cavity

16

What are the two types of Cartilaginous joints?

Synchondroses

Symphyses

17

Describe a synchondroses Joint and give an example

a bar or plate of hyaline cartilage unites the bones at a synchondrosis.

epiphyseal plates connecting the diaphysis and epiphysis regions in long bones of children.

18

Describe a symphyses joint and give an example

the articular surfaces of the bones are coved with articular (hyaline) cartilage which in turn is fused to intervening pad or plate or fibrocartilage

it acts as a shock absorber and permits a limited amount of movement at the joit

Ex: intervertebral joints and the pubic symphysis of the pelvis

19

What is a synovial Joint

those in which the articulating bones are separated by a fluid -containing joint cavity.

Allows for freedom of movement .

20

What are the five distinguishing features of a Synovial Joint

1. Articular Cartilage

2. Joint (synovial ) Cavity

3. Articular Capsule

4. Synovial Fluid

5. Reinforcing Ligaments