Exam 2 Flashcards by Julie DiMuccio

how many bones are in the body

206

How well did you know this?

Not at all

Perfectly

why do the number of bones vary

(digits, ribs) decreases as Age with Fusion (~270 at Birth)

How well did you know this?

Not at all

Perfectly

2 divisions of skeletal system

axial and appendicular

How well did you know this?

Not at all

Perfectly

Skull, Ossicles, Hyoid, Vertebrae, Rib Cage

axial

How well did you know this?

Not at all

Perfectly

Pectoral Girdle, Upper Limbs, pelvic girdle, lower limbs

appendicular

How well did you know this?

Not at all

Perfectly

what develop in lambdoidal or coronal sutures

sutural bones/ wormian

How well did you know this?

Not at all

Perfectly

number of bones in axial skeleton

How well did you know this?

Not at all

Perfectly

number of bones in appendicular skeleton

126

How well did you know this?

Not at all

Perfectly

projections include

processes
condyle
facets
rounded tubercle
crest
line
spine
tuberosity
trochanter
epicondyle

How well did you know this?

Not at all

Perfectly

where tendon or ligament attach is called

processes

How well did you know this?

Not at all

Perfectly

what do depressions include

depressions, groove, fossa, notch, meatus, fissure, foramen, also sinuses

How well did you know this?

Not at all

Perfectly

a smooth flattened
surface covered with articular
cartilage and forms one side of
a joint

facet

How well did you know this?

Not at all

Perfectly

a large rounded
protuberance covered with
articular cartilage forming the
other side of the joint

condyle

How well did you know this?

Not at all

Perfectly

8 bones in cranium

Frontal, Parietal (2), Temporal (2), Occipital, Ethmoid, Sphenoid

How well did you know this?

Not at all

Perfectly

what are sutures

(4) Immovable Joints with Jagged edges for Strength

How well did you know this?

Not at all

Perfectly

coronal suture separates

frontal and parietal

How well did you know this?

Not at all

Perfectly

squamosal separate

pariteal and temporal

How well did you know this?

Not at all

Perfectly

sagittal separate

between parietal

How well did you know this?

Not at all

Perfectly

lambdoidal separate

parietal and occipital

How well did you know this?

Not at all

Perfectly

top of skull, removed to see interior

calvaria

How well did you know this?

Not at all

Perfectly

what bone is the path for eyes and ears

cranium

How well did you know this?

Not at all

Perfectly

attachment for muscles: facial expression, chewing, swallow, speech

cranium

How well did you know this?

Not at all

Perfectly

forehead is

frontal

How well did you know this?

Not at all

Perfectly

coronal suture , frontal sinus,
anterior cranial fossa- support frontal lobe
supraorbital foramen (BV and nerve for eye/eyelid)

frontal

How well did you know this?

Not at all

Perfectly

what bone acts as a protective brain= sides and roof with a sagital and lambdoid suture

parietal

sutural bones (wormian). superior and inferior temporal line and (attachment sites for temporalis muscle- mastication= chew

parietal

how many bones in eye orbit

name the bones in the eye orbit

frontal, sphenoid, zygomatic, maxilla, lacrimal, ethmoid, palatine

tears from eye into nasal cavity is called

nasolacrimal canal

optic nerve

vision

CN III , IV, VI

superior orbital fissures

infraorbital artery vein and nerve

inferior orbital fissures

4 paranasal sinuses

frontal, ethmoid, sphenoid, maxilla

functions of the paransal sinus

decrease weight of skull and voice resonance

bridge of nose

nasal

what bone has inferior hyaline cartilage

nasal

cheekbones

zygomatic

how many facial bones

alveoli

teeth in upper jaw

incisive foramen

bv and nerves

infraorbital foramen

facial artery and nerve

hard palate consists of

anterior 2/3 and separates oral from nasal cavity

alveoli, incisive foramen, infraorbital foramen, and hard palate are in the

maxilla

hard palate (posterior 1/3) is in what bone

palatine

smallest skull bones

lacrimal

nasolacrimal duct to canal=tears

lacrimal

3rd set of nasal concha (increases surface area)

inferior nasal conchae

lower jaw

mandible

largest and strongest bone of face only movable

mandible

has 3 parts

mandible

small triagnular bone on floor of nasal cavity

vomer

what bone does NOT directly articulate with other skeletal bones (Sesamoid)

hyoid

Support for Speech & Swallowing Muscles

hyoid

what bone easily fracture with blow to or squeezing neck

hyoid

how many bones in vertebral column

convex curve

cervical

ribs attached, concave curve

thoracic

convex curve, heaviest and strongest

lumbar

5 fused- articulates with pelvic girdle, concave

sacral

4 fused= tailbone

coccyx

Abnormal lateral rotation of spine (C, T, L Curves) Female > Male, Early Adolescence, Idiopathic, Genetic Breathing issues, Disabling, Psych Treat with Surgery, Place rods

scoliosis

Exaggerated Curvature in Upper Thoracic & Cervical Spine May be due to Osteoporosis Dowager’s Hump

kyphosis

Exaggerated Curvature of Lumbar & Lower Thoracic Vertebrae Due to weak Abdominal Muscles (Diastasis Recti) in middle age/old males Poor posture, Pregnancy  Low back pain Compensation to maintain center of gravity

lordosis

between vertebrae

intervertebral disc

Provide Flexibility to Vertebral Column & Shock Absorber

intervertebral disc

Annalus fibrosus = Fibrous ring of CT

intervertebral disc

whats true about intervertebral disc at night vs morning

night is shorter by half an inch

Nucleus pulposus = Gelatinous (Leaks out = Herniation) Treat with Laminectomy (Remove part of Vertebral Lamina/Arch)

intervertebral disc

flat bone

sternum

the 3 fused bones in the sternum

manubrium, body, xiphoid process

where the manurbium and body meet and costal cartilage of 2nd rib articulates with sternum

sternal angle

how many pairs of ribs

true ribs are

1-7

false ribs are

8-10

floating ribs are

11 and 12

Exam 2 Flashcards

Chapter 7 part 1