skeletal system practice question

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Ribs

o 12 pairs

Pelvic girdle

o 2 coxal, 2 sacrum

Pectoral girdle

o 2 scapulae, 2 clavicle

Sacrum

o 5 fused bones

Moving a part away from the midline

o Abduction

Moving a part toward the midline

o Adduction

Slightly moveable

o Amphiarthrotic

A fontanel can best be described as

o An area in the infants skull that is not ossified

Squamosal structure

o Between parietal and occipital

Lamboidal suture

o Between parietal and occipital bone

An osteocyte is

o Bone cell surrounded by matrix

Nasal bone

o Bridge of the nose

Compound fracture

o Broken bone is exposed to outside

Fluid filled sacs found between skin and underlying bony prominences are called

o Bursae

The salts that form tiny crystals in the intercellular matrix of bone tissue are mainly

o Calcium phosphate

atlas is one of the ___ vertebrae

o Cervical

Moving the finger in a circular motion without moving the hand

o Circumduction

A comminuted fracture is

o Complete and fragments the bone

Drooping the shoulders

o Depression

The shaft of a bone is called the

o Diaphysis

Freely movable

o Diarthrotic

Bending the foot upward

o Dorsiflexion

Turning the hand palm down

o Dorsiflexion

Acromegaly is caused by the excessive secretion of GIT

o During adulthood

Shrugging the shoulders

o Elevation

Straightening the lower limb at the knee

o Extension

Growth hormone is secreted by the thyroid gland

o False

Osteocytes become osteoblasts when they are completely surround by bony matrix

o False

The appendicular skeleton consists of the parts that support and protect the head, nick, and trunk

o False

The hip joint is a Condyloid joint

o False

The tarsal bones from the wrist

o False

Reducing the angle between the bones at a joint

o Flexion

Endochondral ossification involves ___ and intramembranous ossification involves forming bone ___

o Forming bone by replacing hyaline cartilage o Connective tissue

Pituary Dwarfism results from a decreased secretion in ___ hormone which results in a decreased reproduction of ___

o Growth o Cartilage cells (chondrocytes) in the Epiphyseal disk

Which of the following lists the steps of fracture repair in the correct order?

o Hematoma, soft callus, hard callus, remodeling

Articular cartilage is made of

o Hyaline cartilage

Which of the following is the name of the type of crystalline calcium compound found in bone matrix?

o Hydroxyapatite

Excess extension of the part of a joint

o Hyperextension

Bone that develops between sheet-like layers of connective tissue is called

o Intramembranous bone

Turning the foot so that the sole faces medially

o Inversion

The cartilaginous parts (fibrocartilage pads) that separate the vertebrae are

o Invertebratal disks

Mandible

o Jawbone

A person with a fractured patella would expect discomfort in the

o Knee

The microscopic bony chambers that house mature bone cells are called

o Lacunae

Which best describes the person most likely to develop osteoporosis

o Light skinned, post menopausal women

Which increases the risk of developing osteoporosis?

o Low intake of dietary calcium

The hard palate is composed of the

o Maxillae (and palatine) bones

Fibrocartilage disks that divide the joint into 2 or more compounds are

o Menisci

Vomer bone

o Nasal septum

The bone cells responsible for the remodeling of bone by removing bone tissue are

o Osteoclasts

Which of the following is not found in spongy bone?

o Osteons

You are fasting and your blood calcium level drops. What hormone responds to this crisis?

o Parathyroid

Which of the following is an example of intramembranous bone?

o Parietal

Vitamin D deficiency in children may result in

o Pickets

Bending the foot downward

o Plantar flexion

Cranium

o Protect brain

Thrusting the chin forward

o Protraction

Red bone marrow functions in the formation of

o Red and white blood cells and platelets

Hematopoietic is carried out in the

o Red bone marrow

Pull the chin backward

o Retraction

Moving a part around its axis

o Rotation

Which of the following is included in the pectoral girdle?

o Scapula

Tibia

o Shin bone

The bones of the wrist and ankle are classified as

o Short

Turning the hand palm up

o Supination

The skull bones are tightly joined along lines called

o Sutures

Which is NOT a synovial bone

o Synapses pubis

Immovable

o Synarthrotic

The tough, fibrous tissue that encloses a long bone is called

o The Periosteum

The presence of Epiphyseal disk indicates that

o The bone length is increasing

The effect of exercise on bones is to ___ and the ___ them

o Thicken o Strengthen

Femur

o Thigh bone

Which organ releases Calcitonin in response to a fluctuation in blood calcium levels?

o Thyroid gland

Compact bone is characterized by ___ whereas spongy bone is ___

o Tightly packed solid tissue that is strong o Resistant to bending Cancellous bone that reduces the weight of bone due to the arrangement

A meniscus functions to compartmentalize large joints such as the knee

o True

Osteoclasts are large cells that cause the breakdown of osseous tissue

o True

Synovial fluid moistens and lubricants the cartilaginous surfaces within a joint

o True

The elbow is an example of a hinge joint

o True

The joints between the tarsals and carpals are examples of gliding joints

o True

Vitamin D is needed for the proper absorption of calcium in the small intestine

o True

Ribs that attach to the sternum directly by costal cartilages are called

o True ribs

Which of the following bones is not included within the lower limb?

o Ulna

The medullary cavity of a long bone

o Usually contains yellow marrow, blood vessels and nerves, and red marrow

Which of the following is not included in the appendicular skeleton?

o Vertebral column

Zygomatic bone

Cheekbone

Which of the following is NOT a step in the formation of endochondral bone?

Hyaline cartilage changes to adipose tissue


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