Musculoskeletal System

Question 1

Muscle contraction types
______ - The tension developed in muscle remains constant while muscle changes its length
______ - Tension generated is not enough to exceed the resistance of the object to be moved → muscle does not change its length

Answer 1

Isotonic contraction
Isometric contraction

Question 2

Concentric contraction and eccentric contraction belongs to _____ contraction.

Answer 2

isotonic

Question 3

Concentric contraction
Tension vs resistance & result:

Answer 3

Tension > resistance of the object → muscle shortens

Question 4

Eccentric contraction
Tension vs resistance & result:

Answer 4

Tension < resistance of the object → muscle lengthens

Question 5

______ metabolism cause muscle fatigue

Answer 5

Anaerobic

Question 6

_____ activities (e.g. weight-lifting exercise, 50-meter running)
* Use fast fibers
* Fatigue quickly with strenuous activity

Answer 6

Anaerobic

Question 7

_______:
Immovable joints
Very strong
Bone edges may touch or interlock
Movement between bones must be prevented

Answer 7

Synarthroses

Question 8

Examples of synarthrosis:

Answer 8

Suture, gomphosis, synchondrosis, synostosis

Question 8

_______ - give more movement for muscles than a synarthrosis does; articulating bones connected by collagen fibers or cartilage

Answer 8

Amphiarthroses

Question 9

Compare amphiarthroses with diathrosis (Synovial joints/movable joints)

Answer 9

Amphiarthroses articulated bones connected by collagen fibers or cartilage, which allow fewer movement than a diathrosis. And it is stronger than diathrosis.
Diathrosis are synovial joints/ movable joints at the ends of long bones. Within articular capsules and lined with synovial membrane.