support movement

Question 1

types of bones

Answer 1

compact and spongy

Question 2

types of cartilage

Answer 2

1.hyaline
most abundant. found at joints,nose,larynx,trachea

2.elastic
forms external ear and the epiglottis

3.fibrocartilage in disk of spjne

Question 3

cartilage made up of one type of cell known as

Answer 3

chondrocytes

Question 4

types of cells of bone

Answer 4

osteoclasts: bone dissolving cells
osteoblasts: bone forming cells
osteocytes: mature cells

Question 5

types of joints.
joint cavity presence,location and functions.

Answer 5

1.Fibrous:
>no cavity, immovable.
>found in boness of skull,root of tooth.
>provides support and protection.

2.Cartilaginous;
>No C, slightly movable.
>found bw wrist and ankle

3.Synovial:
>synovial cavity present,
>freely movable
>hinge joint,pivot joint, ball and socket

Question 6

whats arthritis and its types.

Answer 6

inflammation of JOINTS characterized by damage to joints tissue.

1.Osteoarthritis: progressive. cartilages gradually soften and disintegrate

2.Rheumatoid arthritis: AUTOIMMUNE disorder. faulty immune system causes synovial membrane inflammation.

3. gouty A; uric acid retained

Question 7

Earliest muscles to evolve

Answer 7

Smooth muscles

Question 8

Which type of muscle can you volunteering control

Answer 8

Skeletal muscle

Question 9

Diameter if skeletel muscle cells

Answer 9

10-100um

Question 10

Myofibrils diameter

Answer 10

1-2um

Question 11

Dark and light band of sarcomere

Answer 11

Dark is A BAND. ANISOTROPIC; polarizes visible light

Light is I BAND. ISOTROPIC; non polarizing

Question 12

Polypeptin chains of actin and myosin

Answer 12

Two polypeptide chains.
Attached to actin is troponin which is a 3 polypeptide complex.
Each myosin surrounded by 6 actin filaments

Question 13

Most abundant protein in your body

Answer 13

Collagen. Its the major component of connective tissues making body parts like tendon,ligaments,skin and muscles