Soc 12- Skeletal System

Question 1

What are 5 functions of skeletal system?

Answer 1

Protect vital organs
Muscle attachment
Joints for movement
Storing calcium and phosphorus
Red and white blood cell production

Question 2

What are the bones in your arms?

Answer 2

Radium, ulna, humerus

Question 3

What are the bones in hand/wrist?

Answer 3

Carpels (cufflinks), metacarpels (wrists), phalanges

Question 4

What are the bones in foot/ankle?

Answer 4

Tarsals, metatarsels, phalanges

Question 5

What bones are in your legs?

Answer 5

Femur, patella,tibia, fibula

Question 6

What bones are in your torso?

Answer 6

Pelvis

Question 7

What bones are in the spine?

Answer 7

Sternum, vertebrae- cervical, thoracic, lumber, sacrum, coccyx

Question 8

What is the real name for shoulder blade?

Answer 8

Scapula

Question 9

What is the real name for collar bone?

Answer 9

Clavicle

Question 10

What is the real name for the skull?

Answer 10

Cranium

Question 11

What are long bones and sporting example?

Answer 11

Longer than wide. A long bone has a shaft and two ends.
Humerus, radius, ulna, metacarpels, phalanes, femur, tibia, fibula
Vital to generate movement, strength and speed.

Question 12

What are short bones and sporting example?

Answer 12

Generally same in length, width and thickness.
Tarsals, patella, carpels

Question 13

What is a pivot joint

Answer 13

Pivot- allow bones to rotate. Rotates inside another bone or ligament. In your neck/first 2 vertabrae, C1 and C2

Question 14

What is a hinge joint?

Answer 14

Hinge- allow for foward and backward motion. Allow for flextion and extension. For exmaple, knee and elbow

Question 15

What is a ball and socket joint?

Answer 15

Ball and socket- a ball goes into a socket, in your humerous into scapula or femur into pelvis. Allows lots of range of motion.

Question 16

What is a condyloid joint?

Answer 16

Condyloid- Similar to ball in socket, ball rests against end of bone, allows circular motion. In your wrist and ankle

Question 17

What are the 4 types of joints?

Answer 17

Pivot
Hinge
Ball and socket
Condyloid

Question 18

What is flexion?

Answer 18

Bending movement that decreases the angle between body parts, shoulder, hip, elbow. Bicep curl

Question 19

What is extension?

Answer 19

Straightening movement that increases the angle between body parts, shoulder, hip. Swinging arm

Question 20

What is dorsiflexion?

Answer 20

Bending or flexing the toes up, closer to the shin, ankle. Position feet at starting blocks.

Question 21

What is plantar flexion?

Answer 21

Extending or pointing the toes down, away from the shin, ankle. Gymnast points toes.

Question 22

What is adduction?

Answer 22

Movement that pulls towards the midline of the body, shoulder,hip. A golfer swings towards the ball

Question 23

What is abduction?

Answer 23

Movement that pulls away from midline of the body, shoulder, hip. Gymnast moves arms out sideways

Question 24

What is rotation?

Answer 24

Movement around a single axis or pivot point, shoulder, hip. A tennis player serves

Question 25

What is circumduction?

Answer 25

Moving in a circular or comical shape, shoulder, hip. A cricketer bowls a ball.

Question 26

What is a flat bone?

Answer 26

Protect organs or offer a good surface for muscles to attach to. Provide movement

Question 27

What is an irregular bone?

Answer 27

Have add shapes and vary in function, vertabrae. Offer protection when playing sport, tend to form specific functions.

Question 28

What is a tendon?

Answer 28

Non-elastic fibres that attach muscles to bine and help to move them. Allow to apply power and movement. Grow in strength.

Question 29

What is a ligament?

Answer 29

Elastic fibres that joins bone to bone, usally holds things together and keeps them stable. Keep skelton supported whist allowing movement.

Question 30

What are the bones in your head?

Answer 30

Cranium