Exam 2 Flexibility

Question 1

8 factors influencing g flexibilty

Answer 1

1. Age
2. Gender
3. Activity level
4. Excess muscle
5. Injury
6. Dominance
7. Genetics
8. Joint structure

Question 2

What are the 3 types of joints

Answer 2

1. Diarthrodial
2. Amphiarthrodial —> back pelvis
3. Synarthrodial —> skull

Question 3

4 types of Diarthrodial joints with examples

Answer 3

1. Ball and socket (hip and shoulder)
2. Saddle —> no rotation (fingers)
3. Pivot —> only rotation (head)
4. Hinge —> flexion (ankle)

Question 4

What is the key to developing flexibilty

Answer 4

Muscle tissue

Question 5

What’s collagen

Answer 5

White fibres that provide structure and support in the connective tissue

Question 6

What is elastin

Answer 6

Yellow fibres that make connective tissue flexible

Question 7

What are proprioceptors and how do they react to flexibility

Answer 7

• nerves that send info about the muscular and skeletal systems to the nervous system
• controls speed, strength and coordination of muscle contractions

1. Proprioceptors detect amount of stretch in muscle length
2. Nerves send signal to spinal cord
3. Spinal cord sends back to muscle
4. Muscle resist stretch

Question 8

Passive vs active stretching

Answer 8

Passive —> using outside force
Active contracting opposite muscle

Question 9

Functions of spine

Answer 9

1. Structural Support
2. Protects spinal cord
3. Support body weight
4. Attachment site
5. Movemnet

Question 10

What does the spine consist of

Answer 10

• 7 cervical
• 12 thoratic
• 5 lumbar
• 5 fused sacrum
• 4 fused coccyx

Question 11

4 spinal curves

Answer 11

1. Cervical
2. Thoratic
3. Lumbar
4. Sacral

Question 12

Parts of vertebrae

Answer 12

Intervertabral disk—> shock absorber
Vertabral arch—> surrounds and protects spine
Vertaral body —> carries stress of weight
Nerve root —> base of 31 spinal nerves

Question 13

Elastic vs plastic elogation

Answer 13

Elsatic —> temporary lengthening
Plastic—> long term lengthening