Class Notes (836,562)
Canada (509,854)
BIOL 1410 (94)

Skeletal System

3 Pages
Unlock Document

Biological Sciences
BIOL 1410
Jennifer Mcleese

 Know if bones are paired Axial (80 bones) 1. Skull Cranium: 8 bones next to brain o Frontal/Forehead o 2 Parietal o 2 temporal o Sphenoid o Ethmoid: forms superior and middle nasal conchae o Occipital Facial: 14 bones o 2 nasal o 2 maxillae o 2 Zygomatic o 2 lacrimal o 2 palatine (and 2 maxillae form hard palate) o 2 inferior nasal conchae o Vomer o Mandible/jaw bone 2. Auditory Ossicles: Middle ear Hyoid Bone o No articulations/joints o Attaches muscles of tongue and neck for swallowing 3. Vertebral Column: 26 vertebrae Typical vertebral structure: o Body is the thick anterior portion o Spinous process is a median posterior projection o Transverse process (2) lateral bony projections for muscle attachment o Lamina (2) connects 2 processes o Pedicle (2) connects body to transverse process o Vertebral foramen hole for spinal cord o Superior and inferior articular facets articulate with vertebrae above and below o Intervertebral foramina are exit for spinal nerves Characteristics by Region: Cervical (7)  All have transverse foramina  C1, C2 = atypical  C1 = atlas (no body, no spinous process, articulates with occipital condyle of skull for nodding)  C2= axis (dens=odontoid process, pivot joint which atlas swivels, shaking "no")  C3-C7 = typical Thoracic (12)  All articulate with ribs via costal facets Lumbar (5)  Support bod
More Less

Related notes for BIOL 1410

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.