Soc 12-The Skeletal System

Question 1

What are the 5 functions of the skeletal system?

Answer 1

-protection of vital organs
-muscle attachment
-joints for movement
-strong calcium and phosphurus
-red and white blood cell production

Question 2

Bones in Spine

Answer 2

-cervical(7)
-thoracic(12)
-Lumbar(5)
Sacrum(5,fused)
-coccyx(4,fused)

Question 3

Hand/Wrist

Answer 3

Hand:
-phalanges
-metacarpals
-carpals
(cufflinks)

Question 4

Foot/ankle

Answer 4

Foot:
-tarsals
-metatarsals
-phalanges
(toes)

Question 5

Leg

Answer 5

-femur
-patella
-tibia
-fibula

Question 6

Arm

Answer 6

-humerus
-radius
-ulna

Question 7

Torso

Answer 7

-ribs
-sternum

Question 8

Shoulder blade

Answer 8

-scapula

Question 9

Collar bone

Answer 9

-clavicle

Question 10

Skull

Answer 10

-cranium

Question 11

Flat bone

Answer 11

This is made up of a layer of spongy bone between two thin layers of compact bone
Examples:
-ribs
-skull
-sternum
clavicle

Question 12

Long bones

Answer 12

function to support the weight of the body and facilitate movement.
examples include:
-tibia
-femur
-humerus
-fibula

Question 13

What are the 4 joints?

Answer 13

-condyloid
-hinge
-pivot
-ball and socket

Question 14

Condyloid

Answer 14

Allows the body to complete a circular motion
-Primarily found in the wrist

Question 15

Pivot

Answer 15

Allow the bones to have a movement of rotation primarily in the neck
-Can turn head side to side

Question 16

Hinge

Answer 16

Allows for a forward and backwards motion(flexion and extension)
-Found in the knee,elbow and ankle

Question 17

Ball and socket

Answer 17

Allows for lots of different movements,made up of a socket and ball.
-Found in femur,hipbone etc

Question 18

Types of movement

Answer 18

-flexion
-extension
-dorsiflexion
-plantar flexion
-rotation
-circumduction
-adduction
-abduction

Question 19

Examples of flexion in sports

Answer 19

Someone working out in the gym bends their arm up when doing a bicep curl

Question 20

Example of extension in sports

Answer 20

Aswimmer swings the arm backwards in preparation for a racing dive

Question 21

Example of dorsiflexion in sports

Answer 21

A sprinter positions their feet in the starting blocks

Question 22

Example of plantar flexion in sports

Answer 22

A floor gymnast points their toes

Question 23

What is the movement of flexion?

Answer 23

bending movement that decreases angle between body parts

Question 24

What is the movement of extension?

Answer 24

Straightening movement that increases angle between body parts

Question 25

What is the movement of dorsiflexion?

Answer 25

Bending or flexing the toes up,closer to the shin.

Question 26

What is the movement of rotation?

Answer 26

Movement around a single axis or pivot point

Question 27

Circumduction

Answer 27

Moving in a circular or conical shape

Question 28

Adduction

Answer 28

Movement that pulls towards the midline of the body

Question 29

Abduction

Answer 29

Movement that pulls away from the midline of the body

Question 30

Example of rotation in sports

Answer 30

A tennis player serves

Question 31

Example of circumduction in sports

Answer 31

A cricketer throws a ball

Question 32

Example of adduction in sports

Answer 32

A golfer on the tee swings the club down towards the ball

Question 33

Example of abduction in sports

Answer 33

A gymnast moves their arms out sideways at the shoulder when performing the crucifix on the rings

Question 34

What is a tendon?

Answer 34

-attaches the muscle to the bone which allows movement and application of power

Question 35

What is a ligament?

Answer 35

Ligaments are elastic,tissue that attaches bone to bone,used to hold things together.