Chapter 7 Anatomy & Physiology
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What does the Axial Skeleton consist of?
and
How many axial bones total and what is the percentage of all bones in the body are axial? -
- Skull (8 cranial, 14 facial)
- Bones associated w/skull (6 auditory ossicles & hyoid bone)
-Vertebral Column (24 vertebrae, sacrum, coccyx)
-Thoracic Cage (24 ribs, sternum)
80 axial bones - 40% - Name all 8 cranial bones:
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- Occipital (1)
- Frontal (1)
- Sphenoid (1)
- Ethmoid (1)
- Parietal (2)
- Temporal (2) -
What is Calvaria also known as?
and
What bones does Calvaria consist of? -
- Skullcap
- Occipital, both Parietal bones, and the Frontal bone - Name all 14 facial bones:
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- Maxillary (2)
- Lacrimal (2)
- Nasal (2)
- Zygomatic (2)
- Mandible (1)
- Palatine (2)
- Inferior Nasal Conchae (2)
- Vomer (1) - Name all 9 superficial facial bones:
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- Maxillary (2)
- Zygomatic (2)
- Lacrimal (2)
- Nasal (2)
- Mandible (1) - Name all 5 deep facial bones:
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- Palatine (2)
- Inferior Nasal Conchae (2)
- Vomer (1) -
What are sutures?
and
Name 4 major sutures: -
- They form where 2 bones interconnect and join
- Lambdoid Suture
- Coronal Suture
- Sagittal Suture
- Squamous Suture -
What does the Lamdoid Suture connect?
and
What other bones may the Lambdoid Suture contain? -
- Connects the Occipital bone with both Parietal bones
-It may contain other sutures connecting Wormian bones - What does the Coronal Suture connect?
- - Connects the Frontal bone to the two Parietal bones
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What does the Sagittal suture connect?
and
Where does the Sagittal suture extend from? -
- Connects the 2 Parietal bones
- Extends from the Coronal and Lambdoidal suture - What does the Squamous suture connect?
- - Connects the Temporal and the Parietal bones on either side of the skull
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What is the general function of the Occipital bone?
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What are the Occipital bone's articulations?
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What is the stire of articulation between the skull and first vertebra of the neck? -
- Forms much of the posterior and inferior portions of the cranium
- Articulates with the Parietal, Temporal, Spehnoid bones, and the first Cervical Vertebra
- Occipital Condyle -
What are the general functions of the Foramen Magnum?
and
What is the Foramen Magnum associated with? -
- Connects the cranial cavity with the spinal cavity which is enclosed by the vertebral column. The Foramen surrounds the connection between the brain and the spinal cord.
- Occipital bone -
What is the general function of the Parietal bones?
and
What are the Parietal bone articulations? -
- Forms part of the superior and lateral surgaces of the cranium
- Articulates with one another, the occipital, Temporal, Frontal, and Sphenoid bones