The Skeletal System

Question 1

The Skeletal System consists of:

Answer 1

Bone, cartilage, and ligaments

Question 2

How many bones are in the Skeletal System?

Answer 2

206 individual named bones in the human skeleton

Question 3

Connective tissue that joins bone to bone

Answer 3

Ligaments

Question 4

Connective tissue that joins muscle to bone.

Answer 4

Tendons

Question 5

Bone sizes

 1. Longest and strongest bone
  2. Smallest bones

Answer 5

1. Femur

2. bones of the middle of the ear

Question 6

Functions of the Skeletal System ( there are 5)

Answer 6

1. Support-all body parts are supported by the skeleton
2. Attachment for muscles-called skeletal muscles.
3. Protection-brain,heart, lungs, nerves, and blood vessels.
4. Production of Blood Cells-in bone marrow
5. Bone tissue stores mineral salts

Question 7

2. Axial Skeleton

A. Cranium-houses the brain

Answer 7

A. Frontal
B. parietal
C. Temporal
D. Sphenoid 
E. Occipital

Question 8

2. Axial skeleton

2. Facial-bones of the face

Answer 8

A. Mandible
B. Maxilla
C. Zygomatic
D. Nasal
E. Zygomatic Arch

Question 9

2. Axial skeleton
   B. Vertebral Column
   1. Single Vertebra

Answer 9

A. Spinous process
B. transverse process
C. Articular processes-superior and inferior
D. Body-where the disk fits
E. Vertebral Foramen-hole through which the spinal cord runs

Question 10

B. Vertebral Column
2. 5 Vertebral Regions
A. Cervical-neck

Answer 10

1) 1st is called the atlas

2) 2nd is called the axis

Question 11

B. Thoracic

Answer 11

-chest (ribs attach to these)

Question 12

C. Lumbar

Answer 12

• small of the back

1) where most lower back

Question 13

D. Sacral

Answer 13

• between the hip bones

1) attach to the ilium of the pelvis

Question 14

E. Coccygeal

Answer 14

• tail bone

1) called coccyx in man

Question 15

3. Intervertebral Disk

Answer 15

A. Made of cartilage filled with a fluid
B. function-padding,cushioning, & flexibility
C. Ruptured disk can cause severe back problems.

Question 16

C. Ribs

Answer 16

1. Bone part connects to thoracic vertebrae
2. “costal cartilage” connects to sternum
3. 3 types
   A) True ribs-attach to sternum
   B) False Ribs-attach indirectly to sternum
   C) floating ribs-do not attach to sternum

Question 17

D. Sternum

Answer 17

1. Common name-breastbone

2. End bone called- xiphoid process

Question 18

III. Appendicular Skeleton

A. Pectoral Girdle (shoulder girdle)

Answer 18

1. Scapula-shoulder blade

2. Clavicle-collar bone

Question 19

B. Arm-or-Foreleg

Answer 19

1. Humerus-head fits into scapula(glenoid cavity)
2. Radius
3. Ulna-humerus fits into trochlear notch
4. Carpals-bones of the wrist
5. Metacarpals-bones of the hand(palm)
6. Phalanges-bones of the fingers and toes

Question 20

C. Pelvic Girdle

   1. Made of two Innominate bones
   2. Each Innominate has three fused

Answer 20

A. Ilium-connects to sacral vertebrae
B. ischium
C. Pubis
3. Acetabulum-the socket where femur head fits

Question 21

D. Leg-or-Hindleg

1. Femur
 2. Patella
 3. Tibia 
 4. Fibula
 5. Tarsals
 6. Metatarsals
 7. Phalanges

Answer 21

1. Femur
     A. Longest and strongest bone
     B. head fits into acetabulum of pelvis 
2. Patella-kneecap
3. Tibia-called shinbone
4. Fibula-long thin bone 
5. Tarsals-bones of the ankle
6. Metatarsals-bones of the foot 
7. Phalanges-bones of the toes and fingers