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Skeletal System Study Guide

Total questions: 49

Worksheet time: 27mins

Name
Class
Date
1.

Which one of the following is not a component of the skeletal system?

a)

bones

b)

joints

c)

cartilages

d)

ligaments

e)

fat

2.

How many bones make up the skeletal system?

a)

206

b)

300

c)

360

d)

606

e)

650

3.

Hematopoiesis takes place in the bones. This is the production of

a)

fat cells

b)

blood cells

c)

cartilage cells

d)

bone cells

e)

nerve cells

4.

These two minerals are important to and stored in the bones.

a)

Calcium and oxygen

b)

Phosphorus and oxygen

c)

Phosphorus and calcium

d)

Potassium and calcium

e)

Calcium and iron

5.

This type of bone tissue is dense, homogeneous, and makes up the outer part of a bone.

a)

Spongy bone

b)

Compact bone

c)

Medullary bone

d)

Osteobone

e)

Sesamoid bone

6.

The sternum and skull bones are types of

a)

Long bones

b)

Short bones

c)

Flat bones

d)

Irregular bones

7.

The medullary cavity in the shaft of a long bone contains

a)

Yellow marrow, which is mostly fat, in adults

b)

Red marrow, which is mostly for blood cell formation, in infants

c)

Both a & b

d)

Neither a nor b

8.

Mature bone cells that make up most of the bone structure are called

a)

Osteocytes

b)

Osteoblasts

c)

Osteoclasts

9.

Lamellae surround these – the tubes where blood vessels run through the bone.

a)

Sharpey’s fibers

b)

Central/Haversian canals

c)

Lacunae

d)

Osteocytes

10.

This substance in bones provides flexibility and tensile strength.

a)

Collagen

b)

Fat

c)

Keratin

d)

Calcium

11.

Bone markings reveal where muscles, tendons, and ligaments were attached and where blood vessels and nerves passed.

a)

True

b)

False

12.

The joints between the bones in the skull are

a)

Fat

b)

Sesamoid

c)

Sutures

d)

Condyloid

13.

The only movable joint in the skull is associated with the

a)

Parietal bone

b)

Xiphoid process

c)

Mandible

d)

Zygomatic bone

14.

Bones such as the humerus, femur, tibia, and ulna may be classified as

a)

Long bones

b)

Short bones

c)

Flat bones

d)

Irregular bones

15.

Using the image of the bone to the right, what does the letter “d” (the outer covering of the bone) represent?

a)

Endosteum

b)

Periosteum

c)

Epiphysis

16.

The outer covering of the bone is secured to the bone by hundreds of pieces of connective tissue called

a)

Hyaline cartilage

b)

Epiphyseal plate

c)

Sharpey’s or perforating fibers

d)

Articular cartilage

17.

These cells are responsible for breaking down bone.

a)

Osteocytes

b)

Osteoblasts

c)

Osteoclasts

18.

Which one is true about the appendicular skeleton?

a)

It contains more bones than the axial skeleton.

b)

It is the central axis of the body

c)

It includes the arms and legs

d)

Only a and c

e)

All of the above

19.

The paranasal sinuses

a)

Are hollow portions of the bones surrounding the nasal cavity

b)

Lighten the skull

c)

Give resonance and amplification to your voice

d)

All of the above

20.

Located in the temporal bone of the skull is a canal that leads to the middle ear. It is called the

a)

Foramen magnum

b)

Styloid process

c)

External acoustic meatus

d)

Acromion

21.

The vertebral column

a)

Transmits the weight of the body to the lower limbs.

b)

Supports the skull

c)

Extends down to the pelvis

d)

All of the above

22.

This is the only bone in the body that does not articulate with another bone – it serves as a moveable base for the tongue.

a)

Mandible

b)

Talus

c)

Hyoid bone

d)

Atlas

23.

The C1 vertebra allows you to nod “yes.” It is also known as

a)

Axis

b)

Talus

c)

Hyoid

d)

Atlas

24.

The lowest part of the sternum is the

a)

Manubrium

b)

Xiphoid process

c)

Body

25.

Also known as a “soft spot” on a baby, this is the name of the fibrous membrane that connects the cranial bones in a baby, thus allowing the brain to grow.

a)

Fontanelle

b)

Mandible

c)

Hyoid

d)

Patella

26.

Which statement about the ribs is not true?

a)

The human body has 12 pairs of ribs.

b)

None of the false ribs attach to the sternum.

c)

They articulate with the vertebral column.

d)

Some attach to the sternum by costal cartilage.

27.

The large opening at the base of the occipital bones, which allows the spinal cord to connect to the brain is called the

a)

Foramen magnum

b)

Styloid process

c)

External acoustic meatus

d)

Acromion

28.

The spinal column is made up of vertebrae – what is the correct breakdown and order from top to bottom of those vertebrae?

a)

7 cervical vertebrae, 12 thoracic vertebrae, 5 lumbar vertebrae

b)

5 cervical vertebrae, 12 thoracic vertebrae, 7 lumbar vertebrae

c)

12 thoracic vertebrae, 5 lumbar vertebrae, 7 cervical vertebrae

d)

12 lumbar vertebrae, 7 cervical vertebrae, 5 thoracic vertebrae

29.

The pectoral girdle is

a)

Another name for the pelvis

b)

Composed of the clavicle and scapula

c)

Very limited in regards to motion and flexibility

d)

Strongly reinforced with ligaments, so it is hard for it to dislocate.

30.

The human body has more ___ vertebrae than any other type.

a)

b. Cervical

b)

a. Thoracic

c)

c. Lumbar

d)

d. Sacral

31.

Which statement about the pelvic girdle is not true?

a)

It protects the reproductive organs, bladder, and part of the large intestine.

b)

It is made of lightweight bone and lots of cartilage.

c)

It supports the weight of the entire upper body.

d)

It differs between males and females.

32.

The bones in the lower back are known as

a)

Cervical vertebrae

b)

Thoracic vertebrae

c)

Carpal vertebrae

d)

Lumbar vertebrae

33.

This is the largest bone of the body.

a)

Humerus

b)

Tibia

c)

Skull

d)

Pelvis

e)

Femur

34.

Which pelvis in the picture is female?

a)

Right

b)

Left

35.

Which bone is more medial?

a)

Tibia

b)

Fibula

36.

A fracture is

a)

A bruised bone

b)

A torn tendon

c)

A dislocated bone

d)

A broken bone

37.

Which vertebrae experience the most stress?

a)

Lumbar

b)

Thoracic

c)

Cervical

38.

Where two bones meet is known as

a)

Joint

b)

Cavity

c)

Fontanelle

d)

Sinus

39.

Phalanges are bones found in the _______.

a)

fingers and toes

b)

skull

c)

rib cage

d)

pelvis

40.

Radius is a bone located in the _______.

a)

forearm

b)

thigh

c)

chest

d)

skull

41.

Sacrum is a bone found at the base of the _______.

a)

spine

b)

skull

c)

rib cage

d)

shoulder

42.

Scapula is commonly known as the _______ bone.

a)

shoulder blade

b)

knee

c)

elbow

d)

ankle

43.

Sternum is also called the _______ bone.

a)

breastbone

b)

collarbone

c)

shinbone

d)

skull

44.

Tarsals are bones found in the _______.

a)

foot

b)

hand

c)

skull

d)

chest

45.

Thoracic Vertebrae are part of the _______.

a)

spine

b)

skull

c)

pelvis

d)

rib cage

46.

Tibia is a bone located in the _______.

a)

lower leg

b)

upper arm

c)

chest

d)

skull

47.

True rib refers to ribs that are directly attached to the _______.

a)

sternum

b)

scapula

c)

clavicle

d)

vertebrae

48.

Ulna is a bone found in the _______.

a)

forearm

b)

thigh

c)

skull

d)

chest

49.

Label the adult long bone!