Bones of the Human Body

Question 1

How many bones are there in the human skeleton?

Answer 1

206 (not including teeth and sesamoid bones)

Question 2

Define:
Sesamoid bones

Answer 2

Small bones found within cartilage

Question 3

What are the 206 bones in the human skeleton split into? (2)

Answer 3

80 axial bones
126 appendicular bones

Question 4

Describe:
Axial bones

Answer 4

Axial bones includes the head, facial, hyoid, auditory, trunk, ribs, and sternum

Question 5

Describe:
Appendicular bones

Answer 5

Appendicular bones includes arms, shoulders, wrists, hands, legs, hips, ankles, and feet

Question 6

How many bones does the spine have?

Answer 6

Adult: 26 bones
Child: Can have up to 34

Question 7

What is the spine also known as?

Answer 7

Vertebral column

Question 8

State the components and number of bones of the spine (vertebral column) in an adult

Answer 8

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

Question 9

In a child:
What does the sacrum comprise of?

Answer 9

5 sacral vertebrae that fuse together

Question 10

In a child:
What does the coccyx comprise of?

Answer 10

3-5 coccygeal vertebrae that fuse together

Question 11

How many bones are there in the chest?

Answer 11

25

Question 12

What is the chest also known as?

Answer 12

Thorax

Question 13

State the components and number of bones of the chest (thorax) in an adult

Answer 13

Sternum (1)
Ribs (24, in 12 pairs)

Question 14

What are the extra ribs that occur in some people?

Answer 14

Cervical ribs

Question 15

How many parts is the sternum comprised of?

Answer 15

3

Question 16

How many bones are there in the head?

Answer 16

29

Question 17

State the components and number of bones of the head

Answer 17

Cranial bones (8)
Facial bones (15)
Middle ears (6, 3 in each ear)

Question 18

State the components and number of cranial bones

Answer 18

Occipital bone (1)
Parietal bones (2)
Frontal bone (1)
Temporal bones (2)
Sphenoid bone (1)
Ethmoid bone (1)

Question 19

State the components and number of facial bones

Answer 19

Nasal bones (2)
Maxillae (1)
Lacrimal bone (2)
Zygomatic bone (2)
Palatine bone (2)
Inferior nasal concha (2)
Vomer (1)
Hyoid bone (1)
Mandible (1)

Question 20

State the components and number of middle ear bones

Answer 20

Malleus (2, 1 in each ear)
Incus (2, 1 in each ear)
Stapes (2, 1 in each ear)

Question 21

What cranial bones are sometimes counted as facial bones?

Answer 21

Sphenoid bone
Ethmoid bone

Question 22

What is the maxillae also known as? What is it comprised of?

Answer 22

Upper jaw bone
Comprised of 2 fused bones

Question 23

What is the mandible also known as?

Answer 23

Lower jaw bone

Question 24

What are the zygomatic bones known as?

Answer 24

Cheek bones

Question 25

How many bones are in the upper limbs (arm, forearm and hands)?

Answer 25

64, 32 in each arm

Question 26

How many bones are in the upper arm?

Answer 26

6, 3 in each arm

Question 27

How many bones are in the lower arm/forearm?

Answer 27

4, 2 in each arm

Question 28

How many bones are in the hands?

Answer 28

54, 27 in each hand

Question 29

State the components and number of upper arm bones

Answer 29

Humerus (2, 1 in each arm) Scapula (2, 1 in each arm) Clavicle (2, 1 in each arm)

Question 30

State the components and number of lower arm/forearm bones

Answer 30

Ulna (2, 1 in each arm) Radius (2, 1 in each arm)

Question 31

State the components and number of hand bones

Answer 31

Scaphoid bone (2, 1 in each wrist) Lunate bone (2, 1 in each wrist) Triquetral bone (2, 1 in each wrist) Pisiform bone (2, 1 in each wrist) Trapezium (2, 1 in each wrist) Trapezoid bone (2, 1 in each wrist) Capitate bone (2, 1 in each wrist) Hamate bone (2, 1 in each wrist) Metacarpals (10, 5 in each hand) Proximal phalanges (10, 5 in each hand) Intermediate phalanges (8, 4 in each hand) Distal phalanges (10, 5 in each hand)

Question 32

What is the pectoral girdle? What bones is the pectoral girdle comprised of?

Answer 32

The set of bones that connect the appendicular bones (arms) to the axis of the body Clavicle and scapula

Question 33

What are the carpals? What bones are the carpals comprised of?

Answer 33

The wrist bones Scaphoid bone, lunate bone, triquetral bone, pisiform bone, trapezium, trapezoid bone, capitate bone, hamate bone

Question 34

What are the phalanges? What bones are the hand phalanges comprised of?

Answer 34

The digital bones of the body (fingers, toes) Proximal phalanges, intermediate phalanges, distal phalanges

Question 35

What is the pelvic bone also known as?

Answer 35

Hip bone

Question 36

What is the hip bone also known as?

Answer 36

Pelvic bone

Question 37

How many regions is the pelvic bone comprised of? State them

Answer 37

3 Ilium, ischium, and pubis

Question 38

What bones does the pelvis comprise of?

Answer 38

Pelvic bone, sacrum, and coccyx

Question 39

How many bones are in the lower limbs (thigh, leg, and foot)?

Answer 39

60, 30 in each leg

Question 40

How many bones are in the feet?

Answer 40

52, 26 in each foot

Question 41

State the components and number of leg bones

Answer 41

Femur (2, 1 in each leg) Patella (2, 1 in each leg) Tibia (2, 1 in each leg) Fibula (2, 1 in each leg)

Question 42

State the components and number feet bones

Answer 42

Calcaneus (2, 1 in each foot) Talus (2, 1 in each foot) Navicular bone (2, 1 in each foot) Medial cuneiform bone (2, 1 in each foot) Intermediate cuneiform bone (2, 1 in each foot) Lateral cuneiform bone (2, 1 in each foot) Cuboid bone (2, 1 in each foot) Metatarsals (10, 5 in each foot) Proximal phalanges (10, 5 in each foot) Intermediate phalanges (8, 4 in each foot) Distal phalanges (10, 5 in each foot)

Question 43

What are the tarsals? What bones are the tarsals comprised of?

Answer 43

The bones that the hindfoot and midfoot are comprised of Calcaneus, talus, navicular bone, medial cuneiform bone, intermediate cuneiform bone, lateral cuneiform bone, cuboid bone

Question 44

What are the phalanges of the feet known as? Name them

Answer 44

Toes Proximal phalanges, intermediate phalanges, distal phalanges

Question 45

What is the calcaneus commonly known as?

Answer 45

Heel bone

Question 46

What is the patella commonly known as?

Answer 46

Kneecap