Bones Of Body Flashcards
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Coronal suture
connects frontal and both parietal bones
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Frontal bone
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Lambdoid suture
Connects occipital bone to both parietal bones
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Occipital Bone
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Parietal bone
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Sagittal suture
connects both parietal bones
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Sutural Bone
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Squamous suture
connects temporal bone to parietal bone
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Supraorbital notch
supraorbital nerve, artery and veins traverse this opening
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Cribriform plate
Flat portion of the ethmoid bone on either side of the crista galli.
Olfactory bulbs line on cribiform plate
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Mandibular Fossa
Part of temporal bone that connects to mandibular condyle to form temporal mandibular joint
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Crista Galli
Midline projection of the ethmoid bone into the brain case.
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Ethmoid Bone
The deepest bone of the skull, it lies between the nasal bone and the sphenoid
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Ethmoid Bone
The deepest bone of the skull, it lies between the nasal bone and the sphenoid
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External Acoustic Meatus
Directs sound waves from tympanic membrane to inner ear
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Foramen Magnum
brainstem runs through here to connect to spinal cord
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Foramen Ovale
Allows nerves and arteries to pass through
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Foramen Rotundum
Allows nerves and arteries to pass through
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Foramen Spinosum
Allows nerves and arteries to pass through
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Greater Wing
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Hypoglossal canal
below tongue, brings nerve to tongue allow to move
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Hypoglossal canal
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Internal Acoustic Meatus
Passageway for vestibularcochlear nerve which carries nerve impulses for hearing and balance
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Jugular Foramen
jugular veins runs through here (drain blood from brain)
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Lesser Wing
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Mastoid Process
Site of attachment for muscles that move skull
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Mastoid Process
Site of attachment for muscles that move skull
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Middle Nasal Concha
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Occipital Condyles
Articulates with atlas C-1, allowing head to move up,down, side-to-side
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Optic Canal
optic nerve through here to give vision
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Perpendicular Plate
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Sella Turcica
Pituitary gland sits here
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Sphenoid Bone
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Sphenoid Bone
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Styloid Process of temporal bone
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Stylomastoid Foramen
Hole between styloid and mastoid
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Styloid Process
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Temporal Bone
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Zygomatic process of temporal bone
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Alveolar Process Mandible
Ridges of the mandible and maxilla that helped to form the sockets that hold the teeth
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Mandibular Condyle
Fits into mandibular fossa on temporal bone forming synovial joint to allow mandible to move. (Temporomandibular joint)
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Coronoid Process of the Mandible
Projection of the mandible to which a muscle moving the mandible upward attaches.
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Inferior Nasal Conchae
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Infraorbital Foramen
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Lacrimal Bone
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Mandible
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Mandible
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Mandibular Foramen
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Maxillae
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Mental Foramen
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Nasal Bone
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Palatine Bone
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Vomer
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Temporal Process
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Zygomatic Arch
Bridge of bone formed by projections of the temporal and zygomatic bones.
Functions as attachment site for a muscle moving the mandible and for ligaments holding the mandible in place
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Zygomatic Arch
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Zygomatic Bone
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Zygomatic Bone
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Hyoid Bone
Not part of the skull. Lies inferior to the mandible in the anterior neck.
Only bone not directly attached to another
Functions to anchor throat, larynx, and tongue muscles .
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Atlas C1
First cervical vertebrae
Articulates with occipital piles to form synovial joint that allows lateral movement (side-to-side) and anterior/posterior movement (nodding yes/no)
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Axis C2
Second cervical vertebrae
Has bony projection called DENS that allows atlas C-1 to rotate allowing for “no” head movements
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Vertebral Body (centrum)
Thick, cylindrical part of the vertebrae responsible for bearing weight
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Cervical Vertebra
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Coccyx
The tailbone
Comprised of 3 to 5 fused coccygeal vertebrae
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Dens of C2
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Inferior Articular Process/ Facet
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Intervertebral Foramin
Where spinal nerves exit vertebral column
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Lamina
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Lumbar Vertebra
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Pedicle
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Sacrum
Five fused vertebrae that formed the posterior wall of the pelvis.
Articulates laterally with the two hip bones (coxae) to form the bony pelvis at Sacrioliac joint
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Spinous Process
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Thoracic Vertebra
Vertebrae that Articulate with the ribs
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Superior Articular Process/ Facet
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Transverse Foramen
Seen in all cervical vertebrae only
Passageway for vertebral arteries supplying blood to the brain
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Transverse Process
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Vertebral Foramen
Spinal cord and cauda equina run through here. All vertebral foramen together form vertebral canal
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Body of Sternum
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Costal Cartilage
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Manubrium
Superior bone of sternum
Clavicle attaches here
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False Ribs
Ribs 8-12
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Floating ribs
Ribs 11, 12
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True Ribs
Ribs 1-7
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Xiphoid Process
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Acromion Process
Projection of the scapula that articulates with the clavicle
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Capitulum
Lateral condyle on distal end of the humerus that articulates with head of radius. (Joint allows for pronation/supanation of the forearm.)
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Carpals (capitate)
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Clavicle
“Collarbones “ that extends from the manubrium to the scapula and hold the scapula in position
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Coracoid Process
Anterior projection of the scapula that serves as a muscle attachment site
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Coronoid Process of Ulna
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Distal Phalanx
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Glenoid Fossa/ Cavity
Depression on scapula where the head of the humorous articulates to form of ball and socket joint
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Greater Tubercle
Lateral bump on proximal end of humorous.
Serves as attachment site for muscles that move the arm
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Head of Humerus
Ball like proximal end of the humorous that articulates with the glenoid fossa of the scapula to form a ball and socket joint
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Humerus
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Head of Radius
Attaches to capitulum of humerus
Allows forearm pronation/Supaination
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Infraspinous Fossa
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Intertubercular Sulcus/ Groove
Groove between greater and lesser tubercles that contain a tendon of the biceps brachii muscle
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Medial Epicondyle of Humerus
Attachment sites for muscles that move the wrist and fingers
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Lateral Border
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Lateral Epicondyle of Humerus
Attachment sites for muscles that move the wrist and fingers
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Medial Border
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Lesser Tubercle
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Metacarpal I
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Metacarpal II
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Metacarpal III
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Olecranon Process
Proximal end of Ulna.
Serves as attachment site for muscles moving the forearm
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Metacarpal IV
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Metacarpal V
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Middle Phalanx
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Radial Tuberosity
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Proximal Phalanx
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Scapula
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Radius
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Styloid Process of Radius
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Spine of Scapula
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Scapular Fossa
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Styloid process of Ulna
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Supraspinous Fossa
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Trochlea
Articulates with trochlear notch of the ulna.(allows for flexion/extension of elbow)
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Superior Border
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Trochlear Notch
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Acetabulum
Depression in the coxa, hold the head of the femur and allows it to move
Forms the hip joint with the femur
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Ulna
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Anterior Superior Iliac Spine
Attachment site for muscles moving the legs
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Anterior Inferior Iliac Spine
Attachment site for muscles moving the legs
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Calcaneus
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Distal Phalanx
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Femur
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Greater Sciatic Notch
Route for the passage of nerves and blood vessels to the posterior side of the pelvic girdle
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Head of Fibula
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Gluteal Tuberosity
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Fibula
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Head of Femur
Ball like and a femur inserts into the acetabulum of the coxa
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Greater Trochanter
Attachment sites for hip muscles, moving the femur
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Inferior Pubic Ramus
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Ilium
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Iliac Fossa
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Iliac Crest
Attachment site for muscles, moving the vertebral column and the legs
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Ischial Spine
Attachment site for ligaments that hold the sacrum in place
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Ischial Tuberosity
Attachment site for ligaments, holding the sacrum in place and for muscles that move the thigh and leg
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Lateral Condyle of Tibia
Bear weight while also allowing movement at knee
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Lateral Malleolus
Attachment site for ligaments, holding the leg and foot bone together at the ankle
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Ischium
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Lateral Condyle of Femur
Bear weight while also allowing movement at knee
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Lateral Epicondyle of Femur
Muscle attachment sites
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Lesser Trochanter
Attachment site for hip muscles, moving the femur
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Linea Aspera
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Medial Condyle of Tibia
Bear weight while also allowing movement at knee
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Medial Condyle of Femur
Condyles bear weight while allowing movement at knee
Ligament attaches here to help hold tibia in place
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Medial Epicondyle of Femur
Muscle attachment sites
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Medial Malleolus
Attachment site for ligaments, holding the leg and foot bones together at the ankle
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Metatarsal I (1)
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Metatarsal II (2)
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Metatarsal III (3)
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Metatarsal V (5)
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Metatarsal IV (4)
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Posterior Inferior Iliac Spine
Attachment site for muscles moving the legs
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Middle Phalanx
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Obturator Foramen
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Patella
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Ossa Coxae
“Hip bone”
Acetabulum is lateral. Pubis is anterior.
Articulates with the sacrum to form the pelvis
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Posterior Superior Iliac Spine
Attachment site for muscles moving the legs
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Pubic Symphysis
An interior connection between the two coxae
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Pubis
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Proximal Phalanx
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Tibial Tuberosity
Attachment site for ligaments, holding the patella in place
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Superior Pubic Ramus
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Talus
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Tibia
How many cervical vertebrae do we have
7
How many thoracic vertebrae do we have
12
How many lumbar vertebrae do we have
5
How many sacral vertebrae do we have
5 fused together to form 1 sacrum
How many coccyx vertebrae do we have
3-5 fused together to form 1 coccyx
Scoliosis
Curves in the spine
Hyperlorodosis
Exentuated lumbar curve
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Frontal sinus
Drains into middle nasal meatus
Common site for sinus infection
Location: frontal bone superior to orbit
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Maxillary sinus
Location: maxilla, lateral nasal cavity and inferior to orbit
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Sphenoidal sinus
Location: sphenoid bone
