A&P Chapter 8 LS AXIAL Skeleton Q&A
Incus, stapes, malleus
Identify the auditory ossicles housed within the petrous part of the temporal bone.
A: Cervical B: Thoracic C: Lumbar D: Sacral E: Coccyx
Identify the regions of the vertebral column on the image. (Picture does not have the part marked, but also identify the tiny piece at the very bottom under D.)
Coronal
The suture that connects the frontal and parietal bones of the skull is the _______ suture.
Mandibular fossa
The temporal bone and mandible articulate to form the temporomandibular joint at the _________.
Sternum, thoracic vertebrae, and ribs.
The thoracic cage consists of....
Axial; appendicular
The two main divisions of the skeletal system are __________ skeleton and ___________ skeleton.
Appendicular
The two subdivisions of the skeleton are axial and ________ skeletons.
Cord
The vertebral canal contains the spinal ________, while the intervertebral foramina allow for passage of spinal nerves.
Provide attachment sites for facial muscles. Form part of the orbit and nasal cavities Give shape and individuality to the face.
What are functions of facial bones?
Provide attachment sites for several jaw, head, and neck muscles Surround and protect the brain
What are functions of the cranial bones
Supports weight of the head, Provides vertical support for the body, Houses and protects the spinal cord.
What are the functions of the vertebral column?
Manubrium; Body; Xiphoid process
What are the parts to the sternum from superior to inferior?
Parietal bones
What bones can clearly be seen on a superior view of the skull?
Occipital condyles
What feature of the occipital bone articulates with the first cervical vertebra?
Spinous Process
What structural feature of the seventh cervical vertebra (C7) allows it to be easily palpated through the skin of the shoulder blades and inferior to the neck?
Lambdoid suture
What suture forms the boundary between the occipital bone and the parietal bones?
Sagittal suture
What suture lies along the midline of the cranium between the parietal bones?
MIDDLE nasal conchae Crista galli SUPERIOR nasal conchae
Which are parts of the ethmoid bone? Check all that apply. +Middle nasal conchae +Inferior nasal conchae +Crista galli +Superior nasal conchae +Vomer
Sphenoid bone
Which bone has a unique butterfly shape composed of a body and greater & lesser wings?
Temporal bone; Maxilla; Mandible
Which bones articulate at the mandibular fossa to form the tempormandibular joint? Check all that apply: +Temporal bone +Maxilla +Mandible +Occipital bone
Mandible and Maxillae.
Which bones contain alveolar processes?
Upper limb, lower limb, pelvic girdle, and pectoral girdle.
Which components are part of the APPENDICULAR skeleton? +Thoracic Cage +Upper Limb +Lower Limb +Pelvic Girdle +Vertebral Column +Pectoral Girdle +Skull
Zygomatic Bone
Which facial bone helps to form the cheek and lateral part of the orbit?
Lacrimal bone
Which facial bone helps to form the medial wall of the orbit?
Thoracic Cage Vertebral Column Skull
Which skeletal regions are part of the AXIAL skeleton? +Thoracic Cage +Upper Limb +Lower Limb +Pelvic Girdle +Vertebral Column +Pectoral Girdle +Skull
They articulate with the thoracic vertebrae; They indirectly articulate with the sternum through shared costal cartilage
Which statements describe the false ribs? 1. They articulate with the thoracic vertebrae 2. They indirectly articulate with the sternum through shared costal cartilage 3. They directly articulate by individual costal cartilages.
Nasal cavity; paranasal sinuses.
Which structures are enclosed by the bones and cartilage of the nasal complex?
Sacral
Which type of vertebrae start to fuse together shortly after puberty and are completely fused between ages of 20 and 30?
Foramen
A _______ is a rounded passageway through a bone.
H: Zygomatic bone C: Nasal Bone G: Lacrimal Bone J: Mandible I: Maxilla
Match the facial bone to its correct location on the figure. (This was the closest picture I could find like the one on LS. LS only requires you to know H, C, G, J, and I on this figure.)
Paranasal Sinus
The _____ _____ help to enlighten the weight of certain skull bones and provides resonance to the voice.
Cranial fossa
The _______ ________ along the floor of the cranial cavity contain depressions for parts of the brain, grooves for blood vessels, and numerous foramina.
pelvic; pectoral
The appendicular skeleton includes the bones of the _______ girdle and the _______ girdle.
Dens
The axis (c2) contains a prominent process called the _______ which acts as a pivot for the rotation of both the atlas and skull
Mandible
The bone of the lower jaw is the ___________.
Cranial bones
Sutures are immovable joints forming the boundaries between the _____________.
TRUE
TRUE OR FALSE? The axial skeleton forms a framework to support and protect the internal organs?
FALSE
TRUE OR FALSE? The inferior nasal conchae are part of the ethmoid bone.
Nasal
The bridge of the nose is formed by the _________ bones.
Frontal bones, parietal bones.
The coronal suture forms the boundary between the what bones?
Upper
The right and left maxillary unite to form the _____ jaw
Hiatus
The sacral canal terminates in an inferior opening called the ________, which represents an area where the laminae of the last sacral vertebra failed to fuse.
Lacrimal
The small paired _______ bones help to form part of the medial wall of the orbit.
Foramen magnum
The spinal cord enters the cranial cavity through the ___________.
