Chapter 7: Skeletal System

Q 7.24: Approximately what percentage of the bones in the adult human axial skeleton come from the cranium?

10%

Q 7.30: How many ribs attach directly to the sternum in the axial skeleton?

7 paired ribs

Q 7.87: The bone in front of you has a sharp, slender projection sticking off one side. What would you call this type of marking?

A spinous process

Q 7.61: The bone on the lab bench in front of you is an adult bone made of two parallel plates of compact bone. If you do a study of this bone's anatomy, what else would you expect to find? Select all that apply. A: The bone would contain red bone marrow. B: The bone would have a thick cross section. C: The bone would not contain spongy bone. D: The bone would contain spongy bone inside. E: The bone would not be fully ossified.

A: The bone would contain red bone marrow. D: The bone would contain spongy bone inside.

Q 7.121: Which of the following is part of the temporomandibular joint? A: articular tubercle of temporal bone B: zygomatic process of temporal bone C: mastoid portion of temporal bone D: all of the choices are correct

A: articular tubercle of temporal bone

Q 7.119: Through which of the following foramina do the sympathetic nerves for the eyes pass? A: carotid B: infraorbital C: optic D: ovale

A: carotid

Q 7.134: Which of the cranial bones of the skull are involved in forming the orbit? Select all that apply. A: ethmoid B: sphenoid C: frontal D: lacrimal E: maxilla F: zygomatic G: palatine

A: ethmoid B: sphenoid C: frontal

Q 7.143: Which of the skull bones are involved in forming the orbit? Select all that apply. A: maxilla B: sphenoid C: frontal D: nasal E: lacrimal F: palatine G: zygomatic H: ethmoid

A: maxilla B: sphenoid C: frontal E: lacrimal F: palatine G: zygomatic H: ethmoid

Q 7.25: Bones that fuse at some point after birth include bones of which of the following? Select all that apply. A: pectoral girdle B: appendicular skeleton C: pelvic girdle D: axial skeleton

B: appendicular skeleton C: pelvic girdle D: axial skeleton

Q 7.124: Which of the following is the structure on the mandible where the temporalis muscle attaches? A: angle B: coronoid process C: Condylar process D: mandibular notch

B: coronoid process

Q 7.115: The facial nerve passes through which of the following structures on the temporal bone? A: external auditory meatus B: internal auditory meatus C: mastoid process D: styloid process

B: internal auditory meatus

Q 7.108: On which bone would you find the hypoglossal canal? A: ethmoid B: occipital C: hyoid D: palatine

B: occipital

Q 7.80: Which of the following might be a type of bone marking to which a tendon is attached? A: sulcus B: trochanter C: meatus D: fissure

B: trochanter

Q 7.88: Connective tissue might attach to which of the following types of bone markings? Select all that apply. A: foramen B: tubercle C: crest D: sulcus E: line

B: tubercle C: crest E: line

Q 7.114: Through which of the following foramina do branches of the trigeminal nerve pass? Select all that apply. A: mental B: carotid C: infraorbital D: rotundum E: ovale F: mandibular G: stylomastoid

C: infraorbital D: rotundum E: ovale

Q 7.129: Which of the following bones is attached to the ligamentum nuchae? A: temporal B: sphenoid C: occipital D: maxilla

C: occipital

Q 7.83: There is a bone on the lab bench in front of you. On it, you see that there is a smooth and slightly convex articular surface. This bone marking would be a_____

Facet

Q 7.144: Paranasal sinuses are lined with________

Mucous Membranes

Q 7.128: Paranasal sinuses drain their secretions into the lateral wall of the_______.

Nasal Cavity

Q 7.155: The_______is the vertical partition that divides the nasal cavity into right and left sides.

Nasal Septum

Q 7.145: The__________suture unite the parietal and temporal bones.

Squamous

Q 7.126: Which of the nasal conchae are involved in the sense of smell?

Superior

Q 7.47: Small bones that connect cranial bones in the axial skeleton are known as________bones.

Sutural

Q 7.141: The buildup of mucus in the maxillary sinus is often more difficult to drain than mucus that is present in the other paranasal sinuses. Why?

The maxillary sinuses are located below the nose, so gravity inhibits drainage.

Q 7.138: Which fontanel is used as a landmark when withdrawing blood from the superior sagittal sinus?

anterior

Q 7.78: A large round protuberance with a smooth articular surface on the end of a bone is a(n)

condoyle

Q 7.120: The roof of the nasal cavity is formed by which of the following structures? A: vomer B: crista galli C: cribiform plate D: superior nasal concha

cribiform plate

Q 7.46: Bones in the ankle are generally

equal in length and width (short bone)

Q 7.56: The scapula is an example of a(n)________bone.

flat

Q 7.112: Which structure forms the anterior portion of the nasal septum?

hyaline cartilage

Q 7.133:: Through which of the following foramina does a branch of the ascending pharyngeal artery pass?

hypoglossal

Q 7.137: Through which of the following foramina does a branch of the trigeminal nerve pass?

infraorbital

Q 7.136: The inferior alveolar nerve passes through which foramen?

mandibular

Q 7.75: A process on a bone is a/an

outgrowth that may be a point for muscle attachment

Q 7.147: Which of the following is an unpaired fontanel that usually closes about two months after birth?

posterior

Q 7.139: Which fontanels normally finish closing about 12 months after birth?

posterolateral

Q 7.79: A_________is a bone marking that serves as a site for tissue attachment or as a part of a joint.

process

Q 7.127: Which of the following is the only cranial bone that has a suture with every other cranial bone?

sphenoid

Q 7.131: Through which of the following foramina does the facial nerve pass?

stylomastoid

Q 7.77: Which of the following describes a furrow along a bone surface to accommodate a blood vessel, nerve, or tendon?

sulcus

Q 7.132: On which bone would you find the mandibular fossa?

temporal

Q 7.32: Your patient was diagnosed with osteosarcoma of the left femur. Which part of her skeleton is directly affected by this diagnosis?

the appendicular skeleton but not the axial skeleton

Q 7.48: What type of bone is the calcaneus?

Irregular bone

Q 7.51: The bone on the lab bench in front of you has a diaphysis and two epiphyses. What would you expect to find if you looked at a cross-section of one of the epiphyses of this bone?

It would contain a lot of spongy bone

Q 7.113: The paired_____________fontanels close about three months after birth.

Anterolateral

Q 7.150: Which of the following is a function of the paranasal sinuses? A: to increase the cleansing of inhaled air B: to serve as resonating chambers C: to reduce the mass of the skull as it grows D: all choices are correct

D: all choices are correct

Q 7.154: Through which of the following foramina does a branch of the occipital artery pass? A: rotundum B: occipital C: mental D: mastoid

D: mastoid

Q 7.81: Which of the following refers to a tube-like opening in a bone? A: foramen B: fossa C: fissure D: meatus

D: meatus

Q 7.109: Through which of the following foramina does the maxillary branch of the trigeminal nerve pass? A: mandibular B: ovale C: stylomastoid D: rotundum

D: rotundum

Q 7.102: A(n)_________is a narrow slit in a bone through which blood vessels or nerves pass.

Fissure

Q 7.82: A(n)_________is a narrow slit in a bone through which blood vessels or nerves pass.

Fissure

Q 7.146: The_______is the structure on the skull where the spinal cord connects to the medulla oblongata.

Foramen Magnum

Q 7.74: A shallow depression on a bone is a/an

Fossa