Lecture Exam 2

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Question #1

Which is false regarding bone remodeling?

A It occurs throughout life.

B It assists in the maintenance of calcium and phosphate levels in the body.

C It can occur in response to stress on a bone.

D It occurs at both the endosteal and periosteal surfaces of the bone.

E It occurs only at articular surfaces.

Question #2

What gives bone its flexibility?

A Trabeculae

B Inorganic salts

C Elastic fibers

D Collagen fibers

E Yellow bone marrow

Question #3

During appositional growth of cartilage, the cells that produce the matrix are the

A chondroblasts.

B chondrocytes.

C osteocytes.

D osteoblasts.

E fibroblasts.

Question #4

Which type of cell produces new bone tissue by secreting matrix?

A Osteoblasts

B Osteocytes

C Osteoclasts

D Osteoprogenitor cells

E Bone-lining cells

Question #5

For most individuals a common source of vitamin D is dietary intake of milk.

A False

B True

Question #6

If a bone is immersed in a weak acid such as vinegar for several days, its inorganic components will dissolve. What will be the result of such an experiment?

A The compact bone will dissolve, leaving only the inner spongy bone.

B The bone will dissolve completely.

C The bone will become extremely brittle.

D The spongy bone will dissolve, leaving only the outer compact bone.

E The bone will become soft and bendable.

Question #7

The zones found in an epiphyseal plate are

a: Calcified cartilage
b: Hypertrophic cartilage
c: Ossification
d: Resting cartilage
e: Proliferating cartilage

The correct order for these zones, beginning with the edge closest to the epiphysis and proceeding toward the diaphysis, is

A c – a – b – e – d.

B d – e – b – a – c.

C c – d – e – a – b.

D e – d – a – c – b.

E d – b – e – a – c.

Question #8

Which is not correct about spongy bone?

A It forms diploe in the cranial bones.

B It is located deep to compact bone.

C It is located in the epiphyses of long bones.

D It is composed of tubular units called osteons.

E Its spaces hold red bone marrow.

Question #9

In general, the mechanical stresses on bones that result from exercise tend to weaken them and lead to more frequent fractures.

A False

B True

Question #10

What are the matrix rings of compact bone that surround the central canal of each osteon?

A Perforating canals

B Canaliculi

C Circumferential lamellae

D Interstitial lamellae

E Concentric lamellae

Question #11

Which is characteristic of cartilage connective tissue?

A Cells called chondrocytes

B Avascular

C Gel-like ground substance

D Matrix of protein fibers

E All of the choices are correct.

Question #12

When during human development does the process of endochondral ossification begin?

A 10-25 years of age.

B 8th-9th month of embryonic development.

D 12 weeks after birth.

E 8th week of embryonic development.

F 3-4 months of age.

Question #13

Place in correct order the following steps in the process of appositional growth of cartilage.

a: New matrix is produced and secreted.
b: Chondrocytes differentiate, each in its own lacuna.
c: Stem cells undergo mitosis.
d: Committed cells differentiate into chondroblasts.

A a. – c. – d. – b.

B c. – d. – a. – b.

C a. – c. – b. – d.

D c. – d. – b. – a.

E d. – c. – b. – a.

Question #14

Bone is considered part of the skeletal system, but ligaments are not.

A False

B True

Question #15

Achondroplastic dwarfism is a disorder that affects endochondral ossification. Which of the following bones will be affected?

A The humerus (long bone) of the upper limb.

B The tibia (long bone) of the leg.

C Long bones in the fingers and toes.

D All of the choices are correct.

E Most bones of the body.

Question #16

Hyaline cartilage contains a ______ percentage of water; cartilage cells reside in small spaces called ________.

A low; canaliculi

B high; canaliculi

C low; lacunae

D high; lacunae

Question #17

In compact bone, ___________ connect adjacent lacunae, thereby providing pathways for nutrients and other materials to pass between osteocytes.

A osteonic canals

B lamellae

C blood vessels

D perforating canals

E canaliculi

Question #18

Which bone forms by intramembranous ossification?

A Radius

B Axis

C First metatarsal

D Zygomatic

E Hamate

Question #19

Which affects osteoblast and osteoclast activity?

A All of the choices are correct.

B Blood calcium level

C Mechanical stress

D Gravity

E Calcitonin and parathyroid hormone levels

Question #20

Most of the bones of the upper and lower limbs are formed by intramembranous ossification.

A True

B False

Question #21

Chronically high levels of ___________ inhibit(s) bone growth.

A thyroid hormone

B growth hormone

C estrogen and testosterone

D serotonin

E calcitonin

Question #22

The epiphyseal plates in the _________ are the last ones in the body to ossify.

A femur

B clavicle

C radius

D tibia

E humerus

Question #23

Bone is considered an important storage reservoir for

A calcium, complex carbohydrates, and polar amino acids.

B steroids, proteins, and complex carbohydrates.

C glycogen, nitrogenous bases, and calcium.

D calcium, phosphate, and lipids.

E phosphate, glycogen, and nonpolar amino acids.

Question #24

Since cartilage must be continuously replaced in the body, appositional and interstitial growth of cartilage continues throughout life.

A False

B True

Question #25

Parathyroid hormone and calcitriol

A stimulate osteoclasts to move calcium from the blood and into the bone.

B stimulate osteoblasts to deposit bone by producing calcified matrix.

C stimulate osteoclasts to resorb bone and release calcium into the blood.

D stimulate osteoblasts to resorb bone and lower blood calcium levels.

Question #26

When elevating the mandible to chew food, the temporomandibular joint functions as a _________ joint.

A pivot

B hinge

C ball and socket

D saddle

Question #27

Gliding is an example of an angular motion.

A False

B True

Question #28

The joints in the body that are the most mobile, such as the glenohumeral joint or coxal joint, are also the most stable.

A True

B False

Question #29

In fibrous joints, the articulating surfaces are held together by

A dense irregular connective tissue.

B articular cartilage.

C fibrocartilage.

D areolar connective tissue.

E dense regular connective tissue.

Question #30

The deltoid ligament, lateral ligament, and tibiofibular ligaments belong to the ________ joint.

A humeroradial

B tarsometatarsal

C talocrural

D fibulometatarsal

E knee

Question #31

One of the functions of synovial fluid is to act as a shock absorber that distributes force evenly across the joint surface.

A True

B False

Question #32

The pubic symphysis is classified as a

A cartilaginous joint and a synarthrosis.

B fibrous joint and an amphiarthrosis.

C fibrous joint and a synarthrosis.

D cartilaginous joint and an amphiarthrosis.

E synovial joint and a diarthrosis.

Question #33

When the angle between articulating bones increases beyond normal, the movement is referred to as

A hyperflexion.

B hypertrophy.

C dislocation.

D supination.

E hyperextension.

Question #34

In addition to the joint between the tibia and the femur, the knee contains a joint between the

A fibula and the femur.

B patella and the fibula.

C patella and the femur.

D patella and the tibia.

Question #35

In the temporomandibular joint, a pad of fibrocartilage called the _________ divides the synovial cavity into two separate chambers.

A meniscus

B mandibular partition

C articular disc

D coronoid capsule

E sphenomandibular ligament

Question #36

What type of cartilage is located between the bones in a symphysis?

A Fibrocartilage

B Hyaline cartilage

C Reticular cartilage

D Elastic cartilage

E Sutural cartilage

Question #37

At the ankle, the lateral ligament is stronger than the medial ligament.

A False

B True

Question #38

The glenohumeral joint is more stable than the hip joint.

A False

B True

Question #39

Which of these synovial joints does not have at least one rounded or convex surface?

A Plane

B Saddle

C Pivot

D Condylar

E Ball and socket

Question #40

Strong reinforcement for the anterior aspect of the hip joint is provided by the Y-shaped

A pubofemoral ligament.

B ischiofemoral ligament.

C iliofemoral ligament.

D ligament of the head of the femur.

Question #41

The fibrocartilage rim that deepens the hip socket is the

A obturator membrane.

B coxal retinaculum.

C glenoid labrum.

D acetabular labrum.

Question #42

The main ligament supporting the lateral aspect of the elbow is the

A radial collateral ligament.

B ulnar collateral ligament.

C lateral cruciate ligament.

D annular ligament.

E ulnar condylar ligament.

Question #43

Which is false regarding ligaments?

A Intrinsic ligaments are thickenings of the articular cartilage.

B Extrinsic ligaments are physically separate from the articular capsule.

C Intracapsular ligaments are within the articular capsule.

D Ligaments are composed of dense regular connective tissue.

E Extracapsular ligaments are outside the articular capsule.

Question #44

The temporomandibular joint is the only mobile joint between skull bones.

A False

B True

Question #45

Which ligament is not associated with the glenohumeral joint?

A Coracohumeral ligament

B Glenohumeral ligament

C Humeral collateral ligament

D Coracoacromial ligament

Question #46

In a young person, the joint between the sphenoid bone and the occipital bone is a

A synchondrosis.

B gomphosis.

C syndesmosis.

D suture.

E symphysis.

Question #47

The hip allows for flexion, extension, abduction, adduction, rotation, and circumduction.

A False

B True

Question #48

Movement of a body part toward the main axis of the body is called

A adduction.

B abduction.

C inversion.

D retraction.

E flexion.

Question #49

A tendon sheath is a fat pad that fills the spaces that form when bones move.

A False

B True

Question #50

Lateral rotation is also known as external rotation.

A True

B False

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