Skeletal System

The suture that joins the parietal and temporal bones of the skull is the _____________ suture.

squamous

The bony process indicated in the lateral view of the skull image is the ___________ process of the ____________ bone.

temporal, zygomatic

Which bones of the skull are unpaired?

-frontal bone(s) -mandible bone(s) -ethmoid bone(s) -occipital bone(s) -sphenoid bone(s)

Describe perforating (Sharpey) fibers. a. Collagen fibers from tendons and ligaments that penetrate the periosteum and firmly adhere the structures to the bone b. Connective tissue fibers found within the yellow marrow in the medullary cavity c. Cartilaginous fibers that attach the ligaments to bone d. Dense proteins found in elastic cartilage

A

Identify the bony process indicated in the figure. a. Mastoid process b. Styloid process c. Temporal process

A

In compact bone, what are the remnants of old osteons found between complete osteons called? a. Interstitial lamellae b. Circumferential lamellae c. Concentric lamellae

A

In which of the following does blood cell production occur? a. Red bone marrow b. Growth plate c. Periosteum d. Yellow bone marrow

A

Once "closed" or ossified, growth in length no longer occurs at an epiphyseal plate. a. True b. False

A

Periosteum ______. a. surrounds a bone b. lines the medullary canal of bones c. lines canaliculi of bones d. surrounds only the ends of bones

A

What bone forms the upper jaw? a. Maxilla b. Mandible c. Vomer d. Zygomatic

A

What bone is indicated by the arrow in the inferior view of the skull? a. Palatine b. Maxilla c. Zygomatic d. Mandible

A

What bone of the face is indicated by the arrow in the figure? a. Zygomatic b. Maxilla c. Mandible d. Palatine

A

What is the midline vertical crest in the anterior cranial fossa that provides an attachment for the meninges? a. Crista galli b. Sella turcica c. Cribriform plate

A

Identify bones of the skull that are paired bones a. temporal bone(s) b. sphenoid bone(s) c. lacrimal bone(s) d. frontal bone(s) e. maxilla bone(s)

A, C, E

Match the labeled structure of the inferior view of the skull with the correct process.

A: Horizontal plate B: Pterygoid plates C: Styloid process D: Temporal process E: Mastoid process

An osteon consists of circular layers of bone matrix surrounding a central canal. These circular layers of bone matrix are called ________. a. interstitial lamellae b. concentric lamellae c. osteonic canals d. canaliculi

B

Collagen fibers from tendons or ligaments penetrate the periosteum and bone matrix, adhering the periosteum to the bone. Name these fibers. a. Central fibers b. Perforating fibers c. Trabeculae

B

Identify the bony depression indicated in the figure. a. Cribriform plate b. Sella turcica c. Hypophyseal fossa d. Petrous portion of temporal bone

B

In adults, what is the remnant of the epiphyseal plate called? a. Lamella b. Epiphyseal line c. Articular cartilage d. Periosteum

B

Marrow that no longer produces blood cells and is mostly adipose tissue is called ______ bone marrow. a. brown b. yellow c. red

B

Periosteum ______. a. lines canaliculi of bones b. surrounds a bone c. surrounds only the ends of bones d. lines the medullary canal of bones

B

The bull's eye appearance of the osteon is created by layers of ______ that surround the central canal. a. trabeculae b. concentric lamellae c. red marrow d. interstitial lamella

B

The channel extending through the center of an osteon is called a ______ canal. a. perforating b. central

B

The two maxillary bones fuse to form part of the roof of the mouth called the ______. a. paranasal sinuses b. hard palate c. soft palate

B

The type of bone that appears solid and forms the outer layers of each bone is ______. a. spongy bone b. compact bone

B

What is the structure indicated by the arrow in the lateral view of the skull? a. Mastoid process b. Temporal process of the zygomatic bone c. Styloid process of temporal bone d. Zygomatic process of temporal bone

B

What is yellow bone marrow? a. Calcium storing tissue b. Adipose tissue c. Blood producing tissue

B

What structure of the skull is the arrow pointing to on the given picture? a. Sagittal suture b. Squamous suture c. Coronal suture d. Lambdoid suture

B

Which layer of tissue lines the internal surfaces of a bone? a. Periosteum b. Endosteum c. Perichondrium

B

he majority of the hard palate, or the roof of the mouth, is formed by the ______ bone. a. nasal b. maxillary c. mandibular

B

process of the temporal bone extends anteriorly to form part of the zygomatic arch. a. Ethmoid b. Frontal b. Temporal c. Parietal

B

An osteon can best be described as a(n) ______ a. hollow canal that runs parallel to the long axis of a bone and contains blood vessels b. series of interconnecting plates of bone c. central canal and all the concentric lamellae that surround it

C

Describe the diaphysis. a. The hollow canal of an osteon b. The body plates of spongy bone tissue c. The center portion of a long bone d. The rounded ends of a long bone

C

Identify the bony process indicated in the figure of the nasal cavity bones. a. Sella turcica b. Petrous portion of temporal bone c. Cribriform plate

C

Identify the suture indicated in the figure. a. Lambdoid suture b. Squamous suture c. Coronal suture

C

Maxilla, mandible, and zygomatic bones are examples of _____ bones. a. girdle b. nasal concha c. facial d. cranial

C

The opening indicated by B is the ______. a. foramen spinosum b. jugular foramen c. foramen magnum

C

The parietal bones are joined to the occipital bone by the _____ suture. a. squamous b. coronal c. lambdoid d. sagittal

C

The type of bone that is composed of small columns of bone loosely arranged in a grid-work pattern is known as ____ bone. a. soft b. trabecular c. spongy d. compact

C

What are interstitial lamellae? a.They are connective tissue linings found in the medullary cavity. b. They are precursor structures to trabeculae which form in the epiphysis of the bone. c. They are remnants of concentric lamellae that were partially removed during bone remodeling. d.They are tiny passageways that connect the osteocytes in one lamella to another.

C

What is the expanded end of a long bone to which tendons and ligaments attach called? a. Epiphyseal plate b. Diaphysis c. Epiphysis

C

What is the hollow space within the diaphysis of a long bone called? a. Central canal b. Trabecula c. Medullary cavity d. Nutrient foramen

C

What is the term for the connective tissue sheath around the external surface of a bone? a. Endosteum b. Perichondrium c. Periosteum d. Perforating fibers

C

Where does a long bone grow in length? a. Articular cartilage b. Medullary cavity c. Epiphyseal plate d. Periosteum

C

Passageways or canals that extend from the periosteum to the medullary canal are called ______. (Select all that apply.) a. Haversian canals b. central canals c. Volkmann canals d. perforating canals

C,D

Bone tissue comprised of osteons (Haversian systems) is ______________ called bone.

Compact, dense or cortical

The bony structure indicated in the figure is the occipital_________________

Condyle

Pair the anatomical terms that relate to bone parts with the corresponding bone feature. Cornu, Fossa, Fovea, Ulcus, Trochanter, Labyrinth.

Cornu= Horn-shaped process Fossa= Depression in bone Fovea= Small pit in bone Ulcus= Deep narrow depression Trochanter= Tuberosity on the proximal femur Labyrinth= Cavity in a bone

A midline vertical crest in the anterior cranial fossa that provides an attachment for the meninges is the __________ __________.

Crista Galli

Bone tissue comprised of trabeculae is called ______ bone. a. compact b. Haversian c. dense d. spongy

D

What are perforating canals? a. An attachment point for tendons or ligaments b. Passageways found in irregular bones c. Canals found in the center of the osteon d. Canals that extend from the periosteum to the medullary cavity

D

What is the bone labeled by the arrow in the figure of the cranial floor? a. Zygomatic b. Vomer c. Ethmoid d. Sphenoid

D

What is the central or Haversian canal? a. The space between the periosteum and the surface of the bone b. A hollow passageway that connects sinuses within a bone c. Pores which are oriented perpendicular to the long axis of the bone and extend from the periosteum to the medullary cavity d. The passageway in the center of the osteon which contains blood vessels

D

What is the function of red bone marrow? a. Osteoid production b. Energy storage c. Long bone growth d. Blood cell production

D

What is the hole in the skull as indicated by the letter A? a. Foramen spinosum b. Foramen magnum c. Foramen ovale d. Jugular foramen e. Foramen rotundum

D

What is the term for the connective tissue sheath around the external surface of a bone? a. Perichondrium b. Perforating fibers c. Endosteum d. Periosteum

D

What suture is indicated by the letter A? a. Sagittal suture b. Coronal suture c. Squamous suture d. Lambdoid suture

D

The center portion of a long bone is called the?

Diaphysis

The structure found between the epiphysis and diaphysis in a child and is a site of bone growth is the __________________ plate.

Epiphyseal

The arrow in the image of the anterior skull points to the ___________ bone.

Ethmoid

Name that opening indicated in the figure

External acoustic meatus

Which of the labels (A-D) represents the sphenoid bone? Label D Label A Label C Label B

Label C

The facial bone indicated by the arrow in the figure is the ______ bone.

Lacrimal

The hollow space within the diaphysis of a long bone is called the _________________cavity.

Medullary

Correctly match the anatomical terms with the corresponding bone feature. Neck, Ramus, Condyle, Facet, Spine, Foramen

Neck= Constriction between head and body of bone Ramus= Branch off the body beyond the angle Condyle= Smooth rounded articular surface of bone Facet= Small flattened articular surface of bone Spine= Very high ridge Foramen= Hole in the bone

The structure of compact bone that consists of a central canal and all the concentric lamellae that surround it is called a Haversian system or a(n) _______________.

Osteons

The colored part of the skull is what part of the bone?

Parietal

Indicated by the arrow what is that structure

Styloid process of the temporal bone

The lateral walls and part of the floor of the cranial cavity are formed by the _____________ bones.

Temporal

The lateral walls and part of the floor of the cranial cavity are formed by the _____________ bones. a. frontal b. temporal c. ethmoid d. parietal

Temporal

Name that bone

Temporal bone

Match the description of the structure of the skull with the correct process. Temporal process, Zygomatic process, Styloid process, Horizontal plate, Palatine process, Occipital condyle.

Temporal process= Part of zygomatic bone and zygomatic arch Zygomatic process= Part of temporal bone and zygomatic arch Styloid process= Sharp process that is part of the temporal bone. Horizontal plate= Part of palatine bone. Palatine process= Part of maxilla. Occipital condyle= Part of occipital bone.

What bone is indicated by the arrow in this illustration of the anterior skull?

Vomer bone

The layer of connective tissue lining internal surfaces of bones is called?

endosteum

Identify the facial bones. inferior nasal conchae maxillae palatine vomer mandible temporal zygomatic ethmoid sphenoid lacrimal nasal

inferior nasal conchae maxillae palatine vomer mandible zygomatic lacrimal nasal

The _______________ process of the temporal bone extends anteriorly to form part of the zygomatic arch.

zygomatic