Mastering A&P I Ch. 7

Identify the typical number of vertebrae that fuse during development to form the coccyx. - 5-7 - 1-3 - 2-8 - 3-5

3-5

Name the number of vertebrae that fuse together to form the sacrum. - 5 - 2 - 3 - 4

5

The cranial sutures begin to form at about what age? - 1 - 2 - 3 - 5

5

What is the name of the first cervical vertebra? - superior articular process - occipital - atlas - axis

Atlas

Sinusitis, an inflammation of the paranasal sinuses, is brought on by a viral, bacterial, or fungal infection. The most commonly affected paranasal sinuses are the most inferior ones, which are called ________________ . - frontal sinuses - ethmoid air cells - sphenoidal sinuses - maxillary sinuses

Maxillary sinuses

Identify the articulation site that allows us to nod our head "yes". - occipital bone (C2) - atlas (axis) - occipital bone (atlas) - occipital bone (axis)

Occipital bone (atlas)

The axial skeleton provides an extensive surface area for the attachment of muscles that __________________ .

Perform all of these functions

What feature (or features) allows the bony thoracic cage to increase or decrease its volume during breathing? - articulation of ribs with vertebrae - articulation of ribs with sternum - attachments of the intercostal muscles - all of the listed responses are correct

all of the listed responses are correct

Identify the region of the sacrum that articulates with the hip bone. - sacral promontory - auricular surface - median sacral crest - sacral canal

articular surface

The nasal conchae __________________ . - protect the optic nerves - protect the nerves for olfaction - anchor muscles that adduct the eyes toward the nose - assist in respiration and olfaction

assist in respiration and olfaction

Which vertebra lacks both a body and spinous process? - atlas - axis

atlas

Identify the articulation site that allows us to rotate our head, e.g. shaking the head "no". - atlas (axis) - occipital bone (axis) - occipital bone (atlas) - axis (C3)

atlas (axis)

What is the name of the second cervical vertebra? - dens - atlas - axis - vertebra prominens

axis

Which of the following bones do NOT make up the thoracic cage? - ribs - sternum - clavicle - thoracic

clavicle

Identify the tailbone. - coccyx - spinous process - sacrum - xiphoid process

coccyx

When fontanelles close prematurely, the skull shape becomes distorted. This condition is known as craniostenosis. If the anterior fontanelle closes prematurely, which of the following sutures most likely involved? - squamous suture - coronal suture - lambdoid suture - sphenoidal sutures

coronal suture

Spinal nerves run to and from the spinal cord within what structure? - vertebral foramen - foramen magnum - vertebral arch - intervertebral foramina

intervertebral foramina

Which of these organs does the sacrum NOT protect? - kidney - uterus - urinary bladder - ovaries

kidney

Which of these is NOT a cranial bone? - parietal - temporal - maxilla - ethmoid

maxilla

A developmental disorders called cleft palate occurs when what two facial bones ail to fuse? - vomer - ethmoid - maxillae - palatine bones

maxillae

Which landmark is composed of fused spinous processes? - coccyx - median sacral crest - sacral promontory - posterior sacral foramina

median sacral foramina

An infant born with a significantly smaller head than normal suffers from ________________ . - macrocephaly - sinusitis - craniostenosis - microcephaly

microcephaly

Identify the region of the skull that articulates with the atlas. - superior articular facets - occipital condyles - mastoid processes - foramen magnum

occipital condyles

The optic nerve passes through which bone marking of the sphenoid bone? - superior orbital fissure - optic canal - inferior orbital fissure - supra-orbital

optic canal

The axial skeleton provides an extensive surface area for the attachment of muscles that ______________ . - perform respiration - position the appendicular skeleton - move the head - perform all of these functions

perform all of these functions

While skateboarding, a young person suffered a fracture of the nose that resulted in a deviated septum. Which of the following ones or bone markings is most likely attended to during corrective surgery following this accident? - greater wings of the sphenoid - lacrimal bone - perpendicular plate of the ethmoid - palatine process of the maxilla

perpendicular plate of the ethmoid

The structure of the internal ear are housed in the ________________ of the _________________ . - internal acoustic meatus, temporal bone - temporal labyrinth, temporal bone - squamous part, temporal bone - petrous part, temporal bone

petrous part, temporal bone

What structures is located in the hypophyseal fossa of the sphenoid bone? - sphenoid sinus - lacrimal gland - parotid gland - pituitary gland

pituitary gland

The two spinal curves present at birth are called _______________ curves. - compensation - primary - fetal - congenital

primary

Identify the bony posterior wall fo the pelvis. - coccyx - pubic symphysis - sacrum - lumbar vertebrae

sacrum

Which two bones contribute to the zygomatic arch? - zygomatic and maxilla - frontal and zygomatic - temporal and zygomatic - temporal and mandible

temporal and zygomatic

Most of the bones of the skull are connected by immovable joints called sutures. Which of the following bone pairings is NOT connected by a suture? - frontal--parietal - temporal--mandible - parietal--parietal - parietal--occipital

temporal--mandible

The maxilla also frequently sustains fractures from blunt trauma to the face. Which structures support and ouse the upper teeth in this bone? - the infraorbital foramen - the palatine processes - the nasolacrimal canal - the alveolar process

the alveolar process

The young boxer has sustained a "blowout" fracture of his left orbital complex. The orbital that contains the eye is formed by seven facial bones. Which skull bone forms the roof of the orbit? - the ethmoid bone - the lacrimal bone - the maxilla - the frontal bone

the frontal bone

The orbital rim is strong, composed of thick, protective bone. But the very thin medial wall and floor of the orbit were literally blown out by the intact eyeball itself when the boxer was struck with such a forceful blow. Which bones compose the orbital rim? - the lacrimal and ethmoid bones articulate with the frontal bone to form the orbital rim - the sphenoid and ethmoid bones articulates with the frontal bone to form the orbital rim - the maxilla and zygomatic bone both articulate with the frontal bone to form the orbital rim - the palatine bone and the lateral mass of the ethmoid articulate with the sphenoid to form the orbital rim

the maxilla and zygomatic bone both articulate with the frontal bone to form the orbital rim

Surrounding the orbits are the four paranasal sinuses. What are these structures? - sinuses are canals that permit the passageway of blood vessels and nerves to the orbit - the paranasal sinuses are air-filled chambers lined with mucus-producing epithelium that open into the nasal cavities - sinuses are non-ossified areas between the cranial bones that allow for growth - sinuses are solid, bony structures that function to strengthen the area around the orbit

the paranasal sinuses are air-filled chambers lined with mucus-producing epithelium that open into the nasal cavities

Which of these statements about the true ribs is FALSE? - they articulate with thoracic vertebrae - they articulate with the sternum - they are ribs one to seven - they don't move during respiration

they don't move during respiration

The spinous processes are especially long on ________________ vertebrae. - sacral - thoracic - lumbar - cervical

thoracic

The weight-bearing region of a vertebra is the ______________ . - pedicle - laminae - vertebral body - spinous process

vertebral body

Which of these bones is NOT part of the orbital complex? - maxillary - zygomatic - frontal - vomer

vomer