Body in Motion

Question 1

4 main functions of the Skeletal system

Answer 1

1. Support
2. Protection
3. Movement
4. Supply of red and white blood cells

Question 2

Main types of bones

Answer 2

1. long bone
2. short bone
3. flat bone
4. irregular bone
5. sesamoid bone

Question 3

Types of Joints

Answer 3

1. Fibrous ( unmoveable)
2. Cartilaginous ( slightly move alr)
3. Synovial (freely moveable)

Question 4

Connective tissues

Answer 4

1. Ligaments - bone to bone
2. Tendon - muscle to bone
3. Cartilage - smooth surface for gliding
4. Synovial fluid - lubricant to keep moist and enable easy movement

Question 5

anatomical positions

Answer 5

superior - toward head
inferior - away from head
Anterior - towards front of body
Posterior - towards back of body
Medial - towards midline of body
lateral - away from midline
proximal - towards body
distal - away from body

Question 6

Explain muscle purpose

Answer 6

Provide movement for the body and receive the ability to move through the nervous system

Question 7

5 Muscle movements

Answer 7

Aduction
abduction 
flexipn
extension
rotation

Question 8

what are involuntary and voluntary muscles

Answer 8

involuntary: ones that do not move or contract, these work automatically. (stomach, bladder)
voluntary: skeletal muscles that are attached to bones and can be consciously activated to control movement

Question 9

muscle relationships and example

Answer 9

agonist - prime mover that is causing the action (bicep)
antagonist - muscle that relaxes and lengthens allowing agonist to contract (tricep)
Stabiliser - acts as a joint to stabilise the muscle

Question 10

muscle contractions

Answer 10

concentric : muscle shortens, causing movement
eccentric : muscle lengthens while under tension
isometric : no movement
isotonic : muscle fibres that produce tense or force as they lift the load through range of motion