Skeletal System

Question 1

What are the four types of a bone?

Answer 1

Flat bone
Long bone
Short bone
Irregular bone

Question 2

What is a flat bone?

Answer 2

Often large and usually protect vital organs

Question 3

What is a long bone?

Answer 3

Enable gross (large) movements

Question 4

What is a short bone?

Answer 4

Enable finer, controlled movements

Question 5

What are irregular bones?

Answer 5

Specifically shaped to protect. E.g. Vertebrae designed to protect the spinal cord

Question 6

What are the functions of the skeleton?

Answer 6

Support 
Production of vital organs 
Movement 
Structural shape 
Blood cell production 
Storage of minerals

Question 7

What is the purpose of support?

Answer 7

Keeps the body upright

Question 8

What is the purpose of the protection of vital organs?

Answer 8

The bones of the skeleton protect the internal organs and reduce the risk of injury on impact. When you head the ball in football, you are protecting the brain

Question 9

What is the purpose of movement?

Answer 9

The bones act like levers and also form joints that allows muscles to pull on them and produce joint movements

Question 10

What is the purpose of structural shape?

Answer 10

The skeleton provides the human shape and determines the height of a shape
If your not 6 foot tall then you can not make the NBA

Question 11

What is the purpose of the blood cell production?

Answer 11

Certain bones in the skeleton contain red bone marrow and the bone marrow produces red blood cells, white blood cells and platelets

Question 12

What is a joint?

Answer 12

A joint is a place where two or more bones meet and is also called an articulation.

Question 13

What is a tendon?

Answer 13

Bone to muscle

Question 14

What is a ligament?

Answer 14

It attach Bone to bone

Question 15

What is the function of cartilage?

Answer 15

Prevent bones rubbing together and causing friction

Question 16

What is the bursae?

Answer 16

The bursae are fluid sacs which help to prevent friction in the joint

Question 17

What is synovial fluid?

Answer 17

Synovial fluid in the joint cavity that lubricates the joint so it moves smoothly

Question 18

Where are synovial joints located?

Answer 18

Hip
Knee
Shoulder 
Ankle 
Elbow

Question 19

What are the two types of synovial joints?

Answer 19

Hinge

Ball and socket

Question 20

What is flexion?

Answer 20

Decreasing the angle at that joint

Question 21

What is extension?

Answer 21

Increasing the angle at that point

Question 22

What is plantar flexion?

Answer 22

Pointing of the foot towards the ground

Question 23

What is dorsi flexion?

Answer 23

The foot pointing upwards

Question 24

What is abduction?

Answer 24

Movement where limbs are moved away from the body

Question 25

What is adduction?

Answer 25

Movement where limbs are moved back towards the midline of the body

Question 26

What is rotation?

Answer 26

Turning a along its long axis

Question 27

What is circumduction?

Answer 27

The limb moves in a circle

Question 28

Location of ball and socket joint

Answer 28

Shoulder | Hip

Question 29

Location of hinge joint

Answer 29

Elbow Ankle Knee

Question 30

What are the movements at the ankle?

Answer 30

Dorsi flexion | Plantar flexion

Question 31

What are the movements at the hip?

Answer 31

Rotation

Question 32

What are the movements at the knee?

Answer 32

Flexion | Extension

Question 33

What are the movements at the shoulder?

Answer 33

Rotation Circumduction Adduction Abduction

Question 34

What are the movements at the knee?

Answer 34

Extension | Flexion

Question 35

What are the four antagonistic pairs in the human body?

Answer 35

Biceps and triceps - acting at the elbow joint Gluteals and hip flexor - acting at the hip joint Quadriceps and hamstrings - acting at the knee Tibialis anterior and gastrocnemius - acting at the ankle joint

Question 36

Define agonist

Answer 36

The prime mover – muscle that causes movement

Question 37

Define antagonist

Answer 37

Muscle that relaxes to allow the agonist to contract

Question 38

Define isotonic contraction

Answer 38

Muscle action where the muscle changes length – causes movement

Question 39

Define isometric contraction

Answer 39

Muscle action where the muscle stays the same length

Question 40

Define eccentric contraction

Answer 40

Isotonic contraction where the muscle lengthens

Question 41

Define concentric contraction

Answer 41

Isotonic contraction where the muscle shortens