Chapter 7 Review Questions
Briefly describe the anatomical characteristics and impairment of function seen in cleft palate and hip dysplasia.
-both affect skeletal formation Cleft Palate: left and right halves of the palate fail to fuse medially. -The resulting opening between the nasal and oral cavities may cause difficulty in sucking. Aspiration of food and aspiration pneumonia may result Hip Dysplasia: the acetabulum is poorly formed and the head of the femur may be partially or completely dislocated. -can lead to degenerative arthritis of the hip joint
Match the bones in column B with their description in column A. (some descriptions require more than a single choice) Column A Column B __(1) connected by a) ethmoid the coronal suture b) frontal __(2) keystone bone of c)mandible cranium d)maxillary __(3)keystone bone of e)occipital the face f)palatine __(4) form the hard palate g)parietal __(5) allows spinal cord h)sphenoid to pass i)temporal __(6) forms the chin __(7)contain paranasal sinuses __(8) contains mastoid sinuses
1) frontal and parietal 2)sphenoid 3)maxillary 4)maxillary and palatine 5)occipital 6)mandible 7)ethmoid, frontal, maxillary, sphenoid 8)temporal
Which vertebral curvatures are primary and which are secondary? Why are they called primary and secondary?
Primary= thoracic and sacral curvatures (2) called primary because they are present at birth Secondary= cervical and lumbar (2) called secondary because they develop after birth when the baby learns to lift its head(cervical curvature) and when it learns to walk (lumbar curvature)
Which ribs are floating ribs? and why are they called that?
Ribs pairs 11 and 12 are floating (2) because they do not attach to the sternum anteriorly
What is the function of the intervertebral discs?
They act as shock absorbers and provide flexibility to the spine allowing it to flex and extend
the wrist bones
carpals
doubly curved; acts as a shoulder strut
clavicle
features include the ala, crest, and greater sciatic notch
ilium
hip bone that articulates with the axial skeleton
ilium
the "sit down" bone
ischium
anteriormost bone of the pelvic girdle
pubis
part of the vertebral column
sacrum
markings include glenoid cavity and acromion
scapula
end shaped like a monkey wrench
ulna
List three important differences between the male and female pelvis.
1)female pelvic inlet and outlet are wider 2)female pelvis is wider, shallower, and lighter 3) female ischial spines are farther apart
articulates with the acetabulum and the tibia
femur
articulates with the capitulum of the humerus
radius
bone that "carries" the hand
radius
forms the lateral aspect of the ankle
radius
Bone of the axial skeleton to which the pectoral girdle attaches
sternum
largest bone of this "group" is the calcaneus
tarsals