Skeletal system

Question 1

Four main functions of the skeletal system

Answer 1

Support
Protection
Storage
Movement
SPSM

Question 2

label skeleton

Answer 2

Cranium- head
mandible- jaw
phalange’s- fingers
patella- knee
humorous- upper arm

Question 3

What are the 4 different types of bones found in the body? Know examples for each
type.

Answer 3

LONG BONES- Legs, arms,toes= compact bone tissue

SHORT BONES- = irregular cubes, ankle, bone of the wrist

FlAT BONES - skull, ribs, hips= protect organs

IRREGULAR BONES- irregular shape, vertebrae

SESAMOID- Small bones developed in tendons around joints- Patella

Question 4

What are the 5 sections of the vertebrate? What is the responsibility of each section? How many vertebrae make up each section

Answer 4

CERVICAL- 7- support head
THORACIC - 12- connect rib cage
LUMBAR - 5- Large weight carrier
SACRUM- 5 fused- fused to pelvis- Distribute the weight of the upper body

COCCYX-4 fused- tail, site for muscular attachment

Question 5

what are joints

Answer 5

JOINT is the part of the body where two or more bones meet to allow movement

Question 6

To explain different joint movements, eg flexion/ extension etc

Answer 6

FLEXION: Angle between two bones is decreased

EXTENSION: Angle between two bones is increased

ABDUCTION: Movement of body part away from midline of body.

ADDUCTION: Movement of body part toward midline of body.

ROTATION: When a bone turns on its own axis within a joint.

CIRCUMDUCTION: rotation of shoulder

PRONATION: face palm down

SUPINATION: face palm up

PLANTARFLEXION: ankle pointing toes downward

DORSIFLEXION: ankle pointing toes upwards

INVERSION: turn sole of foot inwards

EVERSION: turn sole of foot outwards

Place-
Location
Action