Lab Exam 3 - Joints and Synovial Joint Movements (Exercise 11) Flashcards Preview

Bio 40A - Lecture and Lab Exam 3 > Lab Exam 3 - Joints and Synovial Joint Movements (Exercise 11) > Flashcards

Flashcards in Lab Exam 3 - Joints and Synovial Joint Movements (Exercise 11) Deck (83)
Loading flashcards...
1

Define Term: Synarthoses

Immoveable

2

Define Term: Amphiarthroses

Slightly Moveable

3

Define Term: Diarthrosis

Freely moving (represents about 90% of joints in the body)

4

What is the name for immature cartilage cells?

Chondroblasts

5

What is the name for mature cartilage cells?

Chondrocytes

6

Note that in all three types of cartilage, the cells are alone of on groups of two or three and surrounded by a matrix made up of fibers and proteoglycans. What is the difference between the three types of cartilage?

The difference between the three types of cartilage is the type of fibers and relative amount of proteoglycan.

7

What are the three types of cartilage?

Elastic Cartilage, Fibrocartilage, and Hyaline Cartilage

8

The difference between the three types of cartilage is the type of fibers and relative amount of proteoglycan. How is Hyaline cartilage difference from Elastic and Fibrocartilage?

Hyaline cartilage contians type II collagen and a large amount of affrefating cartilage proteoglycan called aggrecan.

9

The difference between the three types of cartilage is the type of fibers and relative amount of proteoglycan. How is Elastic cartilage difference from Hyaline and Fibrocartilage?

Elastic cartilage contains type II collagen and proteoglycan, like Hyaline cartilage, but additionally contains elastic fibers

10

The difference between the three types of cartilage is the type of fibers and relative amount of proteoglycan. How is Fibrocartilage difference from Hyaline and Elastic cartilage?

Fibrocartilage contains less proteoglycan and type I collagen in place of type II collagen.

11

What is a synovial joint?

Synovial joints permit significant movement of two bones relative to each other. Freedom of movement results from the presence of a fluid-filled space between the two bones, called the synovial cavity. The synovial cavity is filled with a lubricating fluid called synovial fluid. Most joints in the body are synovial joints. Some examples include the shoulder, elbow, hip, and knee.

12

Know the following term: Articular bone

The two articularting at the synovial joint (though probably just any bone that articulates with another bone)

13

Know the following term: Articular capsule

Structure that encloses the synovial joint and synovial cavity; has two layers; the fibrous capsule and synovial membrane

14

Know the following term: Articular Cartilage

Hyaline cartilage covering the ends of the bones in the synovial cavity

15

Know the following term: Fibrous Capsule

outer dense fibrous connective tissue layer of the articular capsule that is continuous with the periosteum of the bone; also forms ligaments when fibrous bundles are parallel

16

Know the following term: synovial cavity

small space between the two articulating bones

17

Know the following term: Synovial fluid

secreted by the synovial membrane ; lubricates the articular cartilages to reduce friction

18

Know the following term: Synovial membrane

inner layer of the articular capsule; composed of areolar connective tissue containing elastic fibers and adipocytes

19

What are the most common major injuries to the knee due to sporting activities?

Meniscal tear or a tear to the anterior cruciate ligament.

20

Define Term: Gliding

Gliding: Nearly flat bone surfaces slide or glide over each other

21

Typical Synovial Joint and Dissection: Define 1

1. Articular Bone

22

Typical Synovial Joint and Dissection: Define 2

2. Synovial Fluid

23

Typical Synovial Joint and Dissection: Define 3

3. Synovial Cavity

24

Typical Synovial Joint and Dissection: Define 4

4. Articular Cartilage

25

Typical Synovial Joint and Dissection: Define 5

5. Fibrous Capsule

26

Typical Synovial Joint and Dissection: Define 6

6. Synovial Membrane

27

Typical Synovial Joint and Dissection: Define 7

7. Articular Capsule

28

The Knee Joint: Define 1

1. Articular Cartilage of Femur

29

The Knee Joint: Define 2

2. Lateral Collateral (Fibular) Ligament

30

The Knee Joint: Define 3

3. Lateral Meniscus