The Skeletal System

Question 1

types of bone

Answer 1

-long : act as the lever for the body
-short : they are strong & weight-baring
-flat : used for muscle attachment
-irregular : give body protection and shape

Question 2

SPINE
cervical vertebrae

Answer 2

-1st vertebrae
-provides attachment for your neck muscles
-top vertebrae allows you to nod your head
-second vertebrae allows you to move your head
-7

Question 3

SPINE
thoracic vertebrae

Answer 3

-2nd vertebrae
-connected to the ribs and support rib cage
-allow to bend forward, backward, side to side and rotate
-12

Question 4

SPINE
lumbar vertebrae

Answer 4

-3rd vertebrae
-allow to bend forward backwards side to side
-large vertebrae which provide attachment to the back muscle
-5

Question 5

SPINE
sacrl vertebrae

Answer 5

-4th vertebrae
-fused together
-strong structure supports weight of the body
-transmit power from legs and hips to the upper body
-5

Question 6

SPINE
coccyx vertebrae

Answer 6

-5th vertebrae
-fused together
-have no special use
-4

Question 7

different joints

Answer 7

-the hinge joint
-the ball and socket joint
-the gliding joint
-the pivot joint
-the saddle joint
-the condyloid joint

Question 8

ball and socket

Answer 8

eg. hip and shoulder
-all types of movement are possible at this joint

Question 9

the hinge joint

Answer 9

eg. elbow and knee
-only allows movement in one direction, flexion and extension

Question 10

the pivot joint

Answer 10

eg. neck and between radius and ulna in the elbow
-only allows rotation, (turning head in most sports is the best example)

Question 11

the gliding joint

Answer 11

eg. carpals
-allows bones to glide across one another

Question 12

the saddle joint

Answer 12

eg. thumb
-allows most movements but rotation is limited

Question 13

the condyloid joint

Answer 13

eg. wrist
-allows movement in two planes but rotation is limited

Question 14

TYPES OF MOVEMENT
flexion

Answer 14

anywhere where the angle decreases between two bones eg. bending the knee

Question 15

TYPES OF MOVEMENT
extension

Answer 15

-anywhere where the angle increases between two bones eg. straightening the knee

Question 16

TYPES OF MOVEMENT
abduction

Answer 16

-movement of limbs away from the body

Question 17

TYPES OF MOVEMENT
adduction

Answer 17

-movement of limbs back into the body

Question 18

TYPES OF MOVEMENT
dorsiflexion

Answer 18

eg. the foot, when the toes are pulled upward

Question 19

TYPES OF MOVEMENT
plantar flexion

Answer 19

eg. the foot, when the toes are pointed

Question 20

TYPES OF MOVEMENT
rotation

Answer 20

eg. turning your head to look at something

Question 21

TYPES OF MOVEMENT
circumduction

Answer 21

move in a complete circle (a joint)

Question 22

what does the skeletal system do?

Answer 22

-supports your body when standing, sitting or lying down, and supports the body in more complex positions eg. handstands

-protects vital organs eg. cranium (skull) protects brain, ribs protect heart, lungs, liver, spleen, stomach and kidneys, you spins protects spinal chord

-movement, where bones meet they form joints. tendons attach muscles to bones which enable us to do a variety of movements.

-blood production, red and white blood cells are produced in the bone marrow

-minerals and storage, minerals are stored in the bone marrow