skeleton, joints and movement

Question 1

what are the functions of the Appendicular skeleton?

Answer 1

• The girdle attach the lower and upper limbs to the Axial skeleton.
• The upper limbs grasp and manipulate objects
• The lower limbs permit. locomotion.
• 126 bones in the appendicular skeleton.

Question 2

Bones in the Appendicular Skeleton.

Answer 2

• Clavicle
• Humerus
• Scapula
• Ulna
• Radius
• Carpals
• Metacarpals
• Phalanges
• Pelvic girdle
  Ilium
  Ischium
  pubis
• Femur
• Patella
• Tibia
• Fibula
• Talus
• Metatarsals

Question 3

What are the functions of the Axial skeleton

Answer 3

• Its the central cone of the body.
• Protects our vital organs.
• Consists of 80 bones.

Question 4

Bones in Axial skeleton.

Answer 4

• Cranium
• Sternum
• Ribs
• Vertebral column
  Cervical
  Thoracic
  Lumbar
  Coccyx
  Sacrum

Question 5

What are the functions of the skeleton.

Answer 5

• Shape: determines the characteristics for example; height
• Support: for organs and muscles to attach or suspend from.
• Protection: for vital organs such as brain, spinal cord, heart and lungs.
• Movement: attachment points for the muscles and joints to enable movement, acts as a lever
• Blood cell production: central core of bone marrow where red + white cells created.
• Mineral production: calcium and phosphorous.

Question 6

What are the types of bones?

Answer 6

LONG BONES
structure- longer than they are wide
Function- mobility, strength, structure and blood cell production
Example- tibis, fibula, phalanges, metatarsals.
SHORT BONES
structure- as wide as they are long
Function- weight bearing bones
Example- tarsal bones
FLAT BONES
Structure- bones are expanded in broad flat plates
Function- protection, muscle attachment
Example- cranium and ribs
IRREGULAR BONES
structure- cannot be grouped with other bones
Function- protection and muscle attachment
Example- facial bones and vertebrae
SESAMOID BONES
structure- a bone embedded within a tendon
Function- reduce friction
Example- patella