A and P Lab Axial Skeleton test with
correct answers
Atlas - CORRECT ANSWERS-"Atlas holds up the world" , no spinous process
Axial Skeleton - CORRECT ANSWERS-Includes: the Skull (cranial and facial), Vertebral
Column (cervical, thoracic, lumbar, sacrum and coccyx) and the Bony Thorax (ribs and
sternum).
Axis - CORRECT ANSWERS-"Atlas spins on the axis", gives the funny shape to the spinous
process, dens is the pivot that the atlas sits on.
Cervical Vertebrae - CORRECT ANSWERS-7 cervical vertebrae (C1 through C7)
First 2 cervical vertebrae = atlas (C1) and axis (C2)
Atlas lacks a body; enables you to nod "yes"
Axis acts as a pivot for rotation of the atlas and skull
Articulation between C1 and C2 allows your head to move from side to side ('no')
Cocyx - CORRECT ANSWERS-Formed from the fusion of three to five small irregularly shaped
vertebra.
Is literally the human tailbone
Attached to the sacrum by ligaments
Coronal Suture - CORRECT ANSWERS-point of interaction with parietals with frontal bones
Coronoid Process - CORRECT ANSWERS-protruding anterior portion of the ramus, site of
muscle attachment
, Cranium - CORRECT ANSWERS-encloses and protects the brain
Ethmoid Bone - CORRECT ANSWERS-irregularly shaped bone anterior to the sphenoid; forms
the roof of the nasal cavity, upper nasal septum and part of medial orbit walls.
External Auditory Meatus - CORRECT ANSWERS-canal leading to eardrum and middle ear
Facial Bones - CORRECT ANSWERS-present eye in the anterior position and form the base for
the facial muscles
Foramen Magnum - CORRECT ANSWERS-large opening in base of occipital, which allows the
spinal cord to join with the brain
Frontal Bone - CORRECT ANSWERS-anterior portion, forms the forehead
Hyoid Bone - CORRECT ANSWERS-located in the throat, not considered a "facial bone", point
of attachment for tongue and neck muscles
Inferior Nasal Conchae (turbinates) - CORRECT ANSWERS-thin, curving bones protuding from
lateral nasal cavity walls
Infraorbital Foramen - CORRECT ANSWERS-large bilateral opening located posterior to the
central incisor tooth of the maxilla and piercing the hard palate; transmits the nasopalatine
arteries and blood vessels
Invertebral Disks - CORRECT ANSWERS-pads of fibrocartilage, shock absorbing and
cushioning
Lacrimal - CORRECT ANSWERS-fingernail-sized pair of bones forming part of medial orbit
walls
Lumbar Vertebrae - CORRECT ANSWERS-5 Lumbar vertebrae (L1 through L5)
Have massive block-like bodies & short, hatchet-shaped spinous processes extending directly
backwards
correct answers
Atlas - CORRECT ANSWERS-"Atlas holds up the world" , no spinous process
Axial Skeleton - CORRECT ANSWERS-Includes: the Skull (cranial and facial), Vertebral
Column (cervical, thoracic, lumbar, sacrum and coccyx) and the Bony Thorax (ribs and
sternum).
Axis - CORRECT ANSWERS-"Atlas spins on the axis", gives the funny shape to the spinous
process, dens is the pivot that the atlas sits on.
Cervical Vertebrae - CORRECT ANSWERS-7 cervical vertebrae (C1 through C7)
First 2 cervical vertebrae = atlas (C1) and axis (C2)
Atlas lacks a body; enables you to nod "yes"
Axis acts as a pivot for rotation of the atlas and skull
Articulation between C1 and C2 allows your head to move from side to side ('no')
Cocyx - CORRECT ANSWERS-Formed from the fusion of three to five small irregularly shaped
vertebra.
Is literally the human tailbone
Attached to the sacrum by ligaments
Coronal Suture - CORRECT ANSWERS-point of interaction with parietals with frontal bones
Coronoid Process - CORRECT ANSWERS-protruding anterior portion of the ramus, site of
muscle attachment
, Cranium - CORRECT ANSWERS-encloses and protects the brain
Ethmoid Bone - CORRECT ANSWERS-irregularly shaped bone anterior to the sphenoid; forms
the roof of the nasal cavity, upper nasal septum and part of medial orbit walls.
External Auditory Meatus - CORRECT ANSWERS-canal leading to eardrum and middle ear
Facial Bones - CORRECT ANSWERS-present eye in the anterior position and form the base for
the facial muscles
Foramen Magnum - CORRECT ANSWERS-large opening in base of occipital, which allows the
spinal cord to join with the brain
Frontal Bone - CORRECT ANSWERS-anterior portion, forms the forehead
Hyoid Bone - CORRECT ANSWERS-located in the throat, not considered a "facial bone", point
of attachment for tongue and neck muscles
Inferior Nasal Conchae (turbinates) - CORRECT ANSWERS-thin, curving bones protuding from
lateral nasal cavity walls
Infraorbital Foramen - CORRECT ANSWERS-large bilateral opening located posterior to the
central incisor tooth of the maxilla and piercing the hard palate; transmits the nasopalatine
arteries and blood vessels
Invertebral Disks - CORRECT ANSWERS-pads of fibrocartilage, shock absorbing and
cushioning
Lacrimal - CORRECT ANSWERS-fingernail-sized pair of bones forming part of medial orbit
walls
Lumbar Vertebrae - CORRECT ANSWERS-5 Lumbar vertebrae (L1 through L5)
Have massive block-like bodies & short, hatchet-shaped spinous processes extending directly
backwards
