Skeletal System

Question 1

Shape

Answer 1

Bones determine height and build

Bones connected by ligaments

Question 2

Support

Answer 2

Bones enable us to stand upright

Help us to keep organs and tissue in place

Question 3

Movement

Answer 3

Muscles are attached to boners by tendons

There is a point of origin and insertion

This enables the skeleton to move

Question 4

Protection

Answer 4

Bones protect our vital organs

Question 5

Rbc production

Answer 5

RBC are produced in the bone marrow

Question 6

Types of bone

Answer 6

Long

Short

Flat

Question 7

Long bones

Answer 7

Support - they carry heavy loads

Movement - provide attachments for tendons

RBC production- the container bone marrow

Question 8

Short bones

Answer 8

Support - they provide little movement

Question 9

Flat bones

Answer 9

Protection

Question 10

Types of joints

Answer 10

Fixed or immovable - can move (e.g the skull)

Slightly moveable (cartilaginous) - can only move a little (e.g ribs or vertebrae)

Freely moveable (synovial) - hips shoulders and knee

Question 11

Synovial joints

Answer 11

Ball and socket - most moveable joints in the body

hinge - can only move 2 directions

Question 12

Structure of synovial joint

Answer 12

Synovial fluid - retained inside a pocket called the synovial membrane. This lubricates the joint

Joint capsule - outer sleeve that protects the knee and helps to hold it together

Synovial membrane - lines the capsule and secretes synovial fluid

Ligaments - what all the moving parts are held tg by

Cartilage - coverings at the end of the bones that prevents them rubbing tg and provides shock absorption