Bone Practical

fun fact about the hyoid bone

it does not articulate with any other bone. It is suspended like a hammock from the styloid process of the skull, mandible, and thyroid cartilage (adams apple), manubrium, and scapulae by muscles and ligaments. It serves as an attachment for muscles and helps keep the airway open

occipital bone parts

external occipital protuberance

occipital condyles

foramen magnum

hypoglossal canal

temporal bone parts

styloid process

mastoid process

mandibular fossa

zygomatic process

zygomatic arch

external acoustic meatus

internal acoustic meatus

carotid canal

jugular foramen

sphenoid bone parts

superior and inferior orbital fissure

sella turcica

greater wings

lesser wings

pterygoid process (medial and lateral)

optic foramen

foramen ovale

foramen spinosum

foramen rotundum

ethmoid bone parts

cribiform plate

perpendicular plate

crista gali

nasal conchae

mandible parts

coronoid process

condyloid process/mandibular condyles

mental foramen

mandibular foramen

how many pairs of spinal nerves exit the spinal cord through the intervertebral foramina

31 pairs

kyphosis

hunchback

lordosis

sway back

medial epicondyle fun fact

the medial epicondyle protects the ulnar nerve which runs along the back of the elbow - commonly known as the funny bone because a tingling sensation is felt when you strike it on something

pisiform fun fact

the pisiform bone is not present at birth, but develops between the ages of 9-12 years

male pelvic girdle general appearance

rougher, heavier, thicker with heavier processes

male pelvic girdle tilt

less forward tilt, adapted to support the heavier build and weight

male pelvic girdle width of pelvis

narrower; anterior superior spines closer together (more medial)

male pelvic girdle subpubic angle

less than 90 degrees v-shaped

male pelvic girdle pelvic inlet

heart shaped

male pelvic girdle sciatic notch

narrower

male pelvic girdle acetabulum

larger; face more laterally

male pelvic girdle obturator foramen

rounder

male pelvic girdle sacrum

narrower

male pelvic girdle coccyx

more vertical

female pelvic girdle appearance

smoother, lighter, more delicate processes

female pelvic girdle tilt

tilted forward; adapted for childbearing

female pelvic girdle width

wider; anterior superior spines farther apart (more lateral)

female pelvic girdle subpubic angle

greater than 90, u-shaped

female pelvic girdle pelvic inlet

round oval

female pelvic girdle greater sciatic notch

wider

female pelvic girdle acetabulum

smaller, more anterior facing

female pelvic girdle obturator formaen

oval/triangle shaped

female pelvic girdle sacrum

wider, shorter, less curve

female pelvic girdle coccyx

tilted position

acetabulum fun fact

the smaller more anterior facing acetabulum in women results in a change in the angle of the femoral head which gives the femal gait the characteristic swinging of hip s

femur fun fact

the femur is the longest and strongest bone in your body. it measures ¼ of your height

tibia fun fact

the tibia is the only weight bearing bone of the crural region