Lecture 4 Flashcards
Anatomical orientation
Person stands erect, palms facing anteriorly Thumbs pointed away from the body
Axial skeleton
Skull, vertebral column, thoracic cage
Appendicular skeleton
Pectoral (shoulder) girdle, upper limb, pelvic girdle, lower limb
Skull
Entire skeleton of the head and the face, including the mandible
Mandible
Only movable bone in the skull
Cranium
Skull without the mandible
Frontal bone
Parietal bones (2)
Temporal bones (2)
Occipital bone
Sphenoid bone
Ethmoid bone
Zygomatic bones
Maxillae (2)
Nasal bones (2)
Only bones in nose
Lacrimal bones (2)
Sutures
Joints between bones
Type of joint with no movement
Sagittal suture
Lambdoid suture
Bregma
Lambda
Foramen magnum
Large opening in the occipital bone
Spinal cord passes through
Occipital condyles
Provide articular surfaces for the first cervical vertebra
Fontanelles
Unfused gaps in skull of fetus and neonate
Movement possible between unfused bones
At birth, fontanelles are closed by membrane
Vertebral column
Houses spinal canal which houses the spinal cord
Vertebrae
Normally 33
7 cervical
12 thoracic
5 lumbar
5 sacral
4 coccygeal
Cervical vertebrae
7
C1: atlas
Thoracic vertebrae
12