chapter 6 anatomy
How many thoracic vertebrae are found in the human body?
12
How many bones are in the human skeleton?
206
How many bones comprise the skull?
22
How many fused components make up the sacrum?
5
How many lumbar vertebrae are found in the human body?
5
Which of the following is the largest fontanel?
Anterior fontanel
Which of the following statements regarding vertebral regions is correct?
During development, the sacrum originates as a group of five vertebrae, whereas the coccyx begins as three to five very small vertebrae.
Which of the following statements is not true of the axial skeleton?
It contains the bones of the pectoral and pelvic girdles.
The __________ vertebrae support the skull, stabilize relative positions of brain and spinal cord, and allow controlled head movement.
cervical
Ribs 11 and 12 are specifically called __________ ribs.
floating
Which of the following bones is not in contact with any other bones of the skeleton?
hyoid bone
When a person stands holding a heavy object, which spinal curve is exaggerated to prevent toppling forward?
lumbar
Which fontanel is located at the junctions between the squamous suture and lambdoid suture?
mastoid fontanel
Which bone of the axial skeleton is shaped like a bat with its wings extended?
sphenoid
Which cranial bone articulates with every other cranial bone, extends from one side to the other across the floor of the cranium, and acts as a bridge, connecting cranial and facial bones?
sphenoid
Which of the following is not part of the temporal bone?
temporal process
Which of the following structures contains openings that allow passage of the branches of the olfactory nerve through the ethmoid bone?
Cribriform plate
Rib pairs 2-7 attach to which part of the sternum?
Body
Which of the following are continually remodeled and reshaped, and change throughout your lifetime?
Bones
Which of the following describes the vertebral body of the lumbar vertebrae?
Massive, oval, flat faces
Which vertebra is referred to as the axis?
C2
Which vertebral region permits a relatively greater degree of flexibility, through the interlocking vertebral bodies, than do other regions?
C3-C7
Where is the supra-orbital foramen located?
In the frontal bone
Which of the following statements about the lambdoid suture is FALSE?
It separates the occipital bone from the temporal bones.
Which vertebral column disorder involves an exaggerated thoracic curve, resulting in a round-back appearance?
Kyphosis
Which of the following bones is the smallest bone of the skull, and contains a groove that aids in tear drainage?
Lacrimal bones
Which of the following statements regarding lumbar vertebrae is FALSE?
Lumbar vertebrae have the largest of the vertebral foramina among the vertebral regions.
Which bone is a passageway for sensory nerves from teeth, gums, chin, and lips?
Mandible
Which of the following bones is not part of the orbital complex?
Nasal bone
Which of the following structures on the occipital bone allows the skull to articulate with the first cervical vertebra?
Occipital condyles
Which suture begins at the superior midline of the lambdoid suture and extends anteriorly between the parietal bones to the coronal suture?
Sagittal suture
What structure protects the pituitary gland?
Sella turcica
Which portion of ribs 1-10 contacts the transverse process of a thoracic vertebra?
The inferior portion of the tubercle, via an articular facet
Which of the following statements is not true of the paranasal sinuses?
The mucous secretions are released into the pharynx and oral cavity.
Which of the following statements about the sternum is FALSE?
The muscular diaphragm and the external oblique muscles plus the rectus abdominis attach to the xiphoid process.
Which of the following statements BEST describes the differences between the skulls of infants and adults?
The skulls differ in terms of shape and structure of cranial elements.
Which of the following spinal curves are considered to be "primary curvatures" because they appear late in fetal development?
Thoracic and sacral curves
Which vertebral processes project laterally or dorsolaterally and are sites of muscle attachments, as well as sites of rib articulation in the thoracic area?
Transverse processes
Which vertebral structure transfers weight along the axis of the vertebral column?
Vertebral body
Which part of the rib indicates the site where the tubular body, or shaft, begins curving toward the sternum?
angle
