Ch. 7 Skeleton Flashcards
Skull formed by ___ and ___ bones.
Cranial & Facial
Cranium divided into a ___ and a ___.
Vault & Base
Internal cranial base divided into three ___.
Fossa
Fontanel
Un-ossified mesenchyme that develops into dense connective tissue
The cranium is comprised of 8 cranial bones:
Frontal Parietal (L & R) Occipital Temporal (L & R) Sphenoid Ethmoid
The facial skeleton is made up of 14 bones:
Mandible Maxillary (2) Zygomatic (2) Nasal (2) Lacrimal (2) Palatine (2) Vomer Inferior Nasal Conchae (2)
The ___ is the largest and strongest facial bone.
Mandible
___ and ___ are the only moveable skull bones.
Mandible & Auditroy Ossicles
What bone does not articulate with any other bone?
Hyoid
What bone supports the tongue?
Hyoid
Scoliosis
Abnormal lateral rotation
Kyphosis
Abnormal dorsal thoracic curvature “hunchback”
Kyphosis is common in people with ?
Tuberculosis of spine, ricketts, or osteomalacia
Lordosis
Accentuated lumbar curvature “swayback”
Lordosis is common in people with ?
Pot bellies & pregnant women
The Atlas (C1) has no ___ or ___.
Body & spinous process
The bone for nodding the head “yes”.
Atlas
The sacrum is composed of ___ fused vertebrae.
5
The coccyx is composed of ___ fused vertebrae.
4
The sternum is composed of ___, ___, and the ___.
Manubrium
Middle body
Xiphoid process
Which bone is NOT considered part of the cranium?
A) Ethmoid
B) Lacrimal
C) Sphenoid
D) Occipital
Lacrimal
What is the suture found between the two parietal bones?
Sagittal suture
Which of the following cranial bones is unpaired?
Zygomatic
Frontal
Temporal
Parietal
Frontal
Which cranial bone spans the width of the cranial floor?
Sphenoid
Which of the following bones does not contain a sinus?
Frontal
Nasal
Maxillary
Sphenoid
Frontal
Identify the region of the sphenoid bone in contact with the pituitary gland.
Hypophyseal fossa of sella turcica
Identify the region of the sphenoid bone that contains the optic canal.
Lesser wings
Which part of a vertebra is known as the centrum?
Body
Which of these regions of the vertebral column would be most accessible from a posterior surgical approach?
Body
Pedible
Vertebral foramen
Lamina
Lamina
Identify the articulation site that allows us to nod our head “yes”.
Occipital bone & Atlas
Identify the articulation site that allows us to rotate our head, e.g. shaking the head “no”.
Atlas & Axis pivoting around the Dens
Identify the region of the skull that articulates with the atlas.
Occipital condyles
Identify the socket of the shoulder joint.
Glenoid fossa
Which region of the hip bone articulates with the sacrum?
Auricular surface of the ilium
Which landmark of the hip bone can be felt on a hard chair?
Ischial tuberosity
Identify the indentation that is inferiorolateral to the auricular surface.
Greater sciatic notch
Identify the articulation site on the hip bone for the femur.
Acetabulum
Identify the large hole in the hip bone.
Obturator foramen
Which bony landmarks can be palpated on the anterior surface of the body, close to the midline?
Pubic tubercles
Identify the landmark that is unique to the femur.
Trochanter
Identify the landmark found on the diaphysis of the femur.
Linea aspera
The flat surface of the tibia that articulates with the femur is the superior surface of which landmark?
Medial and lateral condyles
Identify the anatomical landmark resulting in a noticeable bump found on the medial surface of the ankle.
Medial malleolus
Identify the blunt elevation found on the anterior surface of the tibia between the lateral and medial condyles.
Tibial tuberosity
On a busy orthopedic service, you encounter several patients, each of whom has broken a different bone in the lower extremity. Which complete fracture will probably allow the earliest resumption of normal walking?
Femoral
Tibial
Fibular
Calcaneal
Fibular
