Musculoskeletal System

Question 1

It gives support to the body and serves as point of attachment of muscles.

Answer 1

Bones

Question 2

It is the contractile portion in which involved in support and locomotion.

Answer 2

skeletal muscle

Question 3

attaches bone to bone and muscle to bone.

Answer 3

DWFCT in ligaments and tendons

Question 4

What are the primary functions of the musculoskeletal system?

Answer 4

support and
movement of the body.

Question 5

True or false: compact bone is about 15% less dense than the trabecular bone

Answer 5

False (baliktad)

Question 6

Biochemical properties of bone

Answer 6

• Collagenous fibers impart tensile strength to the bone
• hydroxyapatite crystals impart compressive strength

Question 7

Biological Properties of bone

Answer 7

Dynamic Properties:
• Endochondral ossification.
• Internal remodeling, modeling, repair, and calcium metabolism.

Question 8

It comprise the unit of
structure of gross muscle masses.

Answer 8

Individual muscle fibers

Question 9

What separates glossy skeletal muscles masses from each other?

Answer 9

Fascia

Question 10

_____ corresponds to the capsule of a solid organ and is called _______ by histologists.

Answer 10

Fascia, epimysium

Question 11

What type of tissue in ligaments and tendons attaches bone to bone and muscle to bone?

Answer 11

Dense white fibrous connective tissue (DWFCT).

Question 12

What are the components of muscle as an organ?

Answer 12

Skeletal muscle
Loose and dense connective tissues
Vessels
Lymphatics
Nerves

Question 13

What connective tissue covers individual muscle bundles?

Answer 13

Perimysium

Question 14

What separates individual muscle fibers?

Answer 14

Endomysium, a delicate network of loose connective tissue.

Question 15

What is the function of tendons?

Answer 15

Connect muscles to their points of attachment, like bones.

Question 16

Composition of Tendons:

Answer 16

Tendons consist of bundles of collagenous fibers bound together by a perimysial-like connective tissue called endotenon.

Question 17

What encloses the entire tendon?

Answer 17

Epitendineum (epitenon), which is similar to the epimysium.

Question 18

What are synovial sheaths?

Answer 18

Areolar connective tissue between tendons and their fibrous sheaths at points of friction.

Question 19

What composes synovial sheaths?

Answer 19

Two layers of flat cells with an intervening lubricating fluid similar to synovial fluid.

Question 20

What is the mesotenon?

Answer 20

The zone of continuity between the two layers of the synovial sheath.

Question 21

What are Sharpey’s fibers?

Answer 21

Collagenous fibers embedded in bone or cartilage, anchoring the tendon.

Question 22

How does tendon repair occur?

Answer 22

Mediated by paratendinous tissues.

Question 23

What innervates the muscle organ?

Answer 23

Nervous structures for its normal functioning.

Question 24

What is the myoneural junction?

Answer 24

The point of attachment between the nerve terminal and the muscle fiber (also called motor endplate).

Question 25

What is the neuromuscular spindle apparatus?

Answer 25

• Composed of muscle fibers, nerve endings, and connective tissue enclosed by a capsule. • Scattered throughout the muscle to maintain muscle tone and prevent excessive stretching.

Question 26

What are Neurotendinous Organs (Golgi Tendon Organs)?

Answer 26

• Contain collagenous fibers inside a connective tissue capsule. • Have afferent terminals and cells. • Found in tendons near the junction with muscles. • Monitor intensity of muscle contraction.