Skeleton Worksheet

Chapter 6 The Skeleton

1. Add the following labels to the diagrams of the long bone below.

a) Epiphysis;

b) Shaft;

c) Compact bone;

d) Spongy bone;

e) Articular surface;

f) Red marrow;

g) Yellow marrow;

2. Add the following labels to the diagram of the vertebra shown below:

h) Dorsal (neural) spine

i) Transverse process

j) Body

k) Neural (central) canal

3. Add the following labels to the diagram of the dog skeleton shown below:

l) Atlas vertebra

m) Cervical vertebrae

n) Lumbar vertebrae

o) Sacrum

p) Thoracic vertebrae

q) Scapula

r) Mandible

s) Tibia

t) Fibula

u) Femur

v) Carpals

w) Metacarpals

x) Tarsals

y) Metatarsals

z) Hip bone or pelvis

aa) Humerus

bb) Radius

cc) Ulna

dd) Ribs

ee) Sternum

4. Cross out the statement(s) that are NOT true.

The skeleton:

• supports and protects the organs of the body
• provides a means of locomotion
• grows throughout the life of the animal
• helps keep the level of calcium ions in the body constant
• develops from the cartilage laid down in the fetus

5. True or False. If false indicate the correct answer.

• The elbow joint is a synovial joint
• The patella is a compact bone
• The joints in the skull are fixed (immovable joints)
• Unguligrade locomotion is walking on the toenails or hoofs
• Flexion means increasing the angle between two bones
• The joint between the axis and the atlas is a hinge joint
• The articular surface of a joint is covered with spongy bone
• Ligaments join two bones together at a joint
• Plantigrade locomotion is walking on the digits only.
• The hip joint is a hinge joint.

Skeleton Worksheet Answers