Chapter 6 The Skeletal System

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Regulatory functions of the skeletal system incoude

Maintaining the normal concentrations of the calcium and phosphate ions in body fluids

The vertebral column contains _________ lumbar vertebrae

5

The vertebral column contains ________ cervical vertebrae

7

A movement away from the longitudinal axis of the body in the frontal plane is

Abduction

A movement toward the longitudinal axis of the body in the frontal plane is termed

Adduction

The presence of __________ strongly indicates that the long bone is still growing

An epiphyseal plate

When one closes the mouth, the movement is called

Elevation

The medullary cavity of a long bone is lined with

Endosteum

Typical movements at a hinge joint include

Extension and flexion

Ribs that have no connection to the sternum are called

Floating ribs

Found outside or inside a joint capsule, structure that join bone to bone are called

Ligaments

The paranasal sinuses function in

Lightening the skull and providing an extensive area of mucous epithelium

Fibrous cartilage discs that act as shock absorbers in joints are called

Menisci

The bones that form the palms of the hands are the

Metacarpals

Bone forming cells are called

Osteoblasts

The connective tissue covering the outer surface of a bone is the

Periosteum

In anatomical position, when the palm is moved to face posteriorly, the movement of the wrist and hand called

Pronation

Which of the following is an example of the skeletal systems' primary function of providing structural support?

Individual bones provide a framework for the attachment of the soft tissue and organs

Compared with the male pelvis, the female pelvis has a

Narrower pubic angle

The point of attachment for muscles that extend and rotate the head is the

Odontoid process

Which of the following primary functions of the sketletal system applies to the role of bone marrow?

Blood cell production

Red bone marrow function in the formation of...

Blood cells

What is defined as a small packet of connective tissue containing synovial fluid, which reduces friction in a joint and acts a a shock absorber

Bursa

The process of depositing calcium salts into a tissue other than bone is called

Calcification

The atlas is classified as a ______ vertebrae

Cervical

Moving the arm in a loop is an example of which angular movement

Circumduction

The bony compact that supports the brain is called the

Cranium

The shaft of the long bone is called the

Diaphysis

The fibula

Provides lateral stability to the ankle

Choose the distinctive feature of lumbar vertebrae

Relatively, massive, stumpy, spinous process that projects posteriorly

Which of the following is part of the axial skeleton

Ribs

Tarsal bones are classified as _____ bones

Short

The _________ joint is the most frequently dislocated joint if the body as it provides an excellent demonstration of the principle that stability must be sacrificed to obtained mobility

Shoulder

Which joint permits the greatest range of motion of any joint in the body

Shoulder

The vertebral arches contribute structurally to surround and protect the

Spinal cord

Why is the elbow joint considered to be extremely stable

The bony surfaces of the humerus and ulna interlock

Which of the following is part of the appendicular skeleton

The scapula

Spongy bone is made of network of bony rods or plates called

Trabeculae

Which of the following is most likely to be damaged during CPR

Xiphoid process

The patella

Glides over the smooth anterior surface, between the lateral and medial condyles

A joint with flattened or slightly curved articulating surfaces is called a _______ joint

Gliding

A twisting motion of the foot that turns the sole inward is termed

Inversion

Immature, active bone cells that produce new bone matrix are termed

Osteoblasts

Bone cells capable of dissolving of bony matrix are termed

Osteoclasts


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