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57 terms

A&P 168 lecture exam ( chapter 7 )

STUDY
PLAY
206
the skeleton has a total of _______ separate bones.
axial and appendicular
the skeleton is divided into two divisions the ______ skeleton and the _____________ skeleton.
80
the axial skeleton consists of _______ bones.
axial skeleton
_____________; creates a framework that supports and protects organ systems in dorsal and ventral body cavities, it also provides surface for muscle attachment.
22
the skull consists of _______ bones.
7
the accessory bones consists of _____ bones.
26
the vertebral column consists of ______ bones.
25
the thoracic cage consists of _______ bones.
axial skeleton
the three major regions of the ______ _______; skull and accessory bones, the vertebral column, and thoracic cage.
skull
the ____ consists of 22 bones ( most are flat bones )
8
there are ___ cranial bones.
14
there are _____ facial bones.
cranial bones
______ ______ ; enclose the brain; provide sites of attachment for head and neck muscles.
facial bones
_______ ______; framework of face, cavities for special sense organs for sight, taste, and smell; openings for air and food passage; sites of attachment for teeth and muscles of facial exprssion
frontal bone
__________: anterior portion of cranium, has superior wall of orbits
parietal bones
_________: superior and lateral aspects of cranium
occipital bone
____________: most of skull;s posterior wall, articulates with 1st vertebra.
temporal bone
____________: inferolateral aspects of skull
sphenoid bone
__________: articulates with all other cranial bones
ethmoid bone
_________: depest skull bone, superior part of nasal septum, contributes to medial wall of orbits.
mandible
________: lower jaw, largest, strongest bone of face, only freely movable joint in skull.
maxillary bones
____________; articulate with all other facial bones except mandible.
orbits
the _____ encase eyes and lacrimal glands, sites of attachement for eye muscles, formed by parts of 7 skull bones
zygomatic bone
the skull orbits is made with the __________.
nasal cavity
the _________ is made up of hyaline cartilage and 6 skull bones.
nasal cavity
the ethmoid, palatine bones, maxillary bones, inferior nasal conchae, ethmoid and vomer make up the _______.
paranasal sinuses
_______________; mucosa-lined, air-filled spaces, lighten the skull, enhance resonance of voice, it is found in frontal, sphenoid, ethmoid , and maxillary bones.
hyoid bone
________; does not articulate directly with another bone; site of attachment for muscles of swallowing and speech.
auditory ossicles
__________: 3 small bones in each ear, they are the malleus, incus and the stapes
26
vertebral xolumn is made up of ___ irregular bones.
vertebral column
____________; transmits weight of trunk to lower limbs, surrounds and portects spinal cord; curves increase the resilience and flexibility of the spine.
7
the vertebral column consists of ___ neck vertebrae.
thoracic cage
_________; composed of: thoracic vertebrae, sternum, and ribs and their costal cartilages.
thoracic cage
__________: protects vital organs of thoracic cavity, supports shoulder girdle and upper limbs, provides attachment sites for many muscles, including intercostal muscles used during breathing.
sternum
the ____________ consists of breastbone, theree fused bones, that articulates with clavicles and ribs 1 through 7
12
there are ____ pairs of ribs
ribs
_____; all attach posteriorly to thoracic vertebrae,
true
pairs 1-7: are _______ ( vertebrosternal) ribs
false
pairs 8-12: _____ ribs
hyoid and auditory ossicles
the associated bones of the skull include the
mandible and vomer
the single, unparied bones that make up the skeletal part of the face are the
sphenoid, frontal, ehmoid, and maxillary bones
the sinueses, or internal chambers in the skull, are found in the
ossification centers
areas of the head that are involved in the formation of the skull are called
fibrous connective tissue connects the cranial bones
the reason the skull can be distorted without damage during birth is
accommodate the thoracic and abdominoplevic viscera
the primary spinal curves that apperar late in fetal development
lumbar
the most massive and least mobile of the vertebrae are the
skeleton
206 separate bones make up the
axial
80 bones make up the _______ skeleton.
skull
the ________ has 22 bones
accessory
the _______ bones are made up of 7 bones
vertebral column
the ______________ has 26 bones
thoracic cage
the _______________ has 25 bones
skull
the ______ has 22 bones ( most are flat bones )
cranial bones
8 separtate bones make up the.
facial bones
14 bones make up the
irregular
there are 26 _________ bones
neck
there are 7 _______ vertebrae