Skeletal system

Question 1

Skeletal system: 2 divisions

Answer 1

• Axial division
• Appendicular division

Question 2

Skeletal system: Axial division components

Answer 2

• Skull
• Vertebral column
• Thorax

Question 3

Skeletal system: Appendicular division components

Answer 3

• Pectoral girdle
• Upper limb
• Pelvic girdle
• Lower limb

Question 4

Skeletal system: Function

Answer 4

• Framework of the body, made up of many bones and joints.
• Organized into two divisions: axial and appendicular
• Functions include support, protection, assistance in movement, mineral homeostasis, blood cell production, and triglyceride storage for chemical energy

Question 5

Skull components

Answer 5

• Cranial bones
• Facial bones

Question 6

Thorax components

Answer 6

• Sternum
• Ribs

Question 7

Axial division: Location

Answer 7

• Bones of the axial skeleton are arranged along the axis, or vertical line that runs through the body’s center

Question 8

Cranial bones

Answer 8

• Frontal bone
• Parietal bone
• Zygomatic bone
• Sphenoid bone
• Temporal bone
• Ethmoid bone
• Lacrimal bone
• Nasal bone
• Maxilla
• Occipital bone
• Mandible
• Hyoid bone

Question 9

Skull: Functions

Answer 9

1. Cranial bones protect the brain and provide large area for muscle attachment for movement
2. Facial bones form the face and protect and support the entrances to the digestive and respiratory systems

Question 10

Thorax: Functions

Answer 10

1. Protects the organs of the thoracic and superior abdominal cavities
2. Supports the bones of the shoulder girdle and upper limbs

Question 11

Vertebral column: Components

Answer 11

• Cervical vertebrae (7)
• Thoracic vertebrae (12)
• Lumbar vertebrae (5)
• Sacrum (1)
• Coccyx (1)
• Spinal cord

Question 12

Vertebral column: Functions

Answer 12

1. Forms the skeleton of the trunk of the body with the ribs and sternum
2. Provides flexible movement
3. Encloses and protects the spinal cord
4. Supports the head
5. Provides for attachment of rib, pelvic girdle, and back muscles

Question 13

Appendicular Pelvic girdle components

Answer 13

• Bony pelvis
• Coxal (hip) bone

Question 14

Appendicular skeleton: Function

Answer 14

• Comprised of bones from the upper and lower extremities or limbs, as wall as the girls that attach these limbs to the axial skeleton

Question 15

Pelvic girdle: Components

Answer 15

• Coxal bone
• Ilium
• Ischium
• Pubis

Question 16

Bony pelvis: Components

Answer 16

• Coxal bones
• Pubic symphysis
• Sacroilliac joint
• Sacrum

Question 17

Pelvic girdle: Functions

Answer 17

1. Pelvic girdle connects the bones of the lower limbs to the axial skeleton
2. Bony pelvis provides support for the vertebral column

Question 18

Lower limb: Components

Answer 18

• Femur
• Patella
• Fibula
• Tibia
• Tarsals
• Metatarsals
• Phalanges

Question 19

Lower limb: Functions

Answer 19

1. Facilitates movement
2. Provides surface for muscle attachments

Question 20

Pectoral (shoulder) girdle: Components

Answer 20

• Clavicle
• Scapula
• Acromioclavicular joint
• Sternoclavicular joint
• Glenohumeral joint

Question 21

Pectoral girdle: Functions

Answer 21

1. Attaches the bones of the upper limbs to the axial skeleton
2. Provides surface for the attachment of muscle tendons and ligaments

Question 22

Upper limb: Components

Answer 22

• Humerus
• Ulna
• Radius
• Carpals
• Metacarpals
• Phalanges

Question 23

Upper limb: Functions

Answer 23

1. Facilitates movement
2. Provides surface for muscle attachments