Skeletal System

Question 1

Three types of connective tissue are…

Answer 1

Tendons - connect bone to muscle

Ligaments - found between articulating bones

Cartilage - coats ends of bones inside joint to reduce friction during movement

Question 2

What four types of bones are there?

Answer 2

Long - arms, legs etc.

Short - support and stability

Flat - red blood cells

Irregular - vertebrae

Question 3

Osteoblasts vs. osteoclasts

Answer 3

Blasts - bone builders, take minerals and use them to secrete new boney matrix

Clasts - smooth out matrix

Question 4

Why is weighbearing exercise hood for bone health?

Answer 4

It stimulates the production of more matrix, strengthening the bone

Question 5

Name 3 types of joints

Answer 5

Fibrous - no movement, tough, dense, teeth, cranium etc.

Cartilaginous - allow for limited movement, between costals / sternum, intervertebral discs, pubic symphysis

Synovial - free range of motion, shoulder elbow wrist Etc, cavity filled with fluid

Question 6

What are the six types of synovial joints?

Answer 6

Hinge - simple open and closed movements, elbow / knee

Pivot - movement around access, ulna / radius

Ball and socket - ball sitting in cup, movement on all three planes, shoulders / hips

Condyloid - oval shaped ball and socket, forward backward and side-to-side movement, Motion in two planes: midsagittal and frontal, skull / cervical vertebrae

Gliding - gliding movements in all directions, disks between vertebrae

Saddle - saddles interlocked and perpendicular, movement in frontal and sagittal planes, carpal bones of thumb

Question 7

What is the glenohumeral joint?

Answer 7

Ball-and-socket, between scapula and humerus

Question 8

What are intervertebral joints?

Answer 8

Cartilaginous, between vertebrae

Question 9

Vertebrocostal joints

Answer 9

Synovial between vertebral bones and ribs

Question 10

Sternocostal joint

Answer 10

Cartilaginous, between sternum and ribs

Question 11

Sternoclavicular joint

Answer 11

Saddle, between sternum and clavicle

Question 12

Acromioclavicular joint

Answer 12

Gliding, between cromium and clavicle

Question 13

Humeroulnar joint

Answer 13

Hinged, between humerus and ulna

Question 14

Radioulnar joint

Answer 14

Pivot, between radius and ulna as a

Question 15

Radiocarpal joint

Answer 15

Condyloid, between radius and carpals

Question 16

Intercarpal joint

Answer 16

Gliding, between each of the carpal bones

Question 17

Sacroiliac joint

Answer 17

Gliding, between sacrum and Ilium

Question 18

Tibiofibular joint (proximal)

Answer 18

Gliding, head of tibia and fibula

Question 19

Tibiofibular joint (distal)

Answer 19

Fibrous, between tibia and fibula at ankle

Question 20

Intertarsal joint

Answer 20

Gliding, seven types in tarsal of foot

Question 21

Pubic symphysis joint

Answer 21

Cartilaginous, between pubic bones and pelvis

Question 22

Hip joint

Answer 22

Ball-and-socket, between acetabulum of pelvis and head of femur

Question 23

Knee joint

Answer 23

Hinge, between femur and tibia

Question 24

Ankle joint

Answer 24

Hinge, between tibia and Talus