Bio 1410 Skeletal system ( Topic 10)

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sacrum

a triangular bone in the lower back formed from fused vertebrae and situated between the two hipbones of the pelvis.

the lumbar part of the spine is located posterior to your ________

abdomen

the parietal bones are

above the temporal bones

where do all three bones of the os coxa join?

acetabulum

anatomical name for the scapula

acromion process

what do the C1-C7 all have in common?

all have transverse foramina

what is the upper limb made up of?

arm, forearm and hand

the T1-T12 spine bone are special because they all__________

articulate with the ribs via costal facets

acetabulum

articulates with the head of the femur

what does the coracoid process do?

attaches muscles for arm and chest

of the cervical region of the vertebrae- C1 and C2 are known as ___________

atypical

the cervical region of the vertebrae is separated into what three parts/types?

atypical, typical and atlas

inferior

away from the head

the appendicular skeleton is made up of bones that attach to the _________

axial skeleton (girdles)

C2 of the cervical region is the _______

axis

what is posterior (dorsal)

back

why is the C1 cervical known as atlas?

because it holds up your head

what eight things make up a typical cerebral column?

body, spins process, transverse process, lamina, pedicle, vertebral foramen, superior/inferior articular facers and invertebrate foramina

what 8 bones make up the wrist?

carpals

the spine is made up of what sections?

cervical, thoracic, lumbar, sacrum and coccyx

what are the five regions of the vertebral column

cervical, thoracic, lumbar, sacrum and coccyx

what bones does the pectoral girdle consist of?

clavicle and scapula

what is proximal

close to

the thoracic and the sacrum curve which way?

concave anteriorly/convex posteriorly

articulations

connections between bones

the cervical and the lumbar curve which way?

convex anteriorly/concave posteriorly

a site where a rib forms a joint with the top of a vertebra

costal facets ( inferior and superior )

what are the three main groupings of the skull?

cranium, facial bones and auditory ossicles

what is a superior view/aspect?

down onto the head

superficial

external or towards the body surface

what is distal

far from

what is the anatomical position?

feet, face and palms forward

how many segments in the lumbar part of the spine?

five (L1-L5)

hyoid bone

freely floating looking bone, just anterior to the vertebrae in your neck, it is an anchoring point

what is anterior (ventral)

front

what are the six parts of the Cranium

frontal, parietal, temporal, sphenoid, ethmoid and occipital

the sacrum articulates with the _______ and the ______

ilium and the L5

the part of the hip bones that we generally call our hips

illiac

what are the three auditory ossicles names?

incus, malleus and stapes

the part of the pelvic bone you feel when sitting down on a hard surface

ischium

all of the lumbar vertebrae have _________

large bodies & rectangular spinous processes

an exaggerated lumbar curve is a medical term known as ______

lordosis

what part of the sternum is superior to the body of the sternum?

manubrium

what are the three parts of the breast bone ( sternum) ?

manubrium, body and xiphoid process

the floating ribs (11 and 12) are embedded in the ______

muscle

what are the names of the bones that make up the facial bones?

nasal, maxillae, zygomatic, lacrimal, palatine, inferior nasal conchae, vomer and mandible

c2 allows for what type of head motion?

no motion

the atlas articulates with __________ of the skull

occipital condyle

metacarpals are the ______

palm bones

what are the three bones that make up the hip bones?

Illium, ischium and Pubis

the cartilage piece that joins the front of the pelvic bone?

Pubic symphysis

all bones that make up the skull are made of either 1 or 2 parts, which ones are made of 2 parts?

parietal and temporal

what does the ethnic form?

parts of your nose (superior and middle nasal conchae )

name the parts/ bones of the appendicular skeleton in the upper body

pectoral girdle, clavicle, scapula, spine, glenoid cavity and coracoid process

what parts make up the appendicular skeleton?

pectoral girdle, pelvic girdle, upper limb and lower limb

what is the function of the odontoid process?

pivot joint around which atlas swivels

girdles are _____________________

points of attachment between the Axial and Appendicular skeletons

which lower arm bone is connected to the thumb?

radius

what two bones make up the lower arm

radius and ulna

the sacroiliac joint is the joint between the ____ and the _____

sacrum + ilium

an individual whose back curves laterally would have what spinal issue?

scoliosis

what components does the Axial skeleton include?

skull, hyoid bone, vertebral column, thoracic cage

the sphenoid ______________

spans all the way across the skull behind the jaw (butterfly shaped)

the tiny bumps on a back when you bend over are the ______

spins process

what parts of the sternum are inferior to the manubrium?

the body and the xiphoid process

what are the only points of contact between the axial and appendicular skeleton in the upper body?

the clavicle bones

the Axis (c2) of the cervical region of the vertebrae is known for having what part?

the dens ( odontoid process)

what does the thoracic cage include?

the sternum and ribs

what is the thoracic cage made out of?

the sternum and the ribs

which lower arm bone connects to the humorous

the ulna

what does the lumbar support?

the weight of the upper body

what is special about the cartels compared to other arm bones?

they are the only short bones

what makes the false ribs?

they attach either indirectly to sternum or not at all

what is the lower limb made up of?

thing, leg and foot

an individual with a humpback would have and issue with what part of the spine?

thoracic

t1-t12 is known as the ___________ part of the spine

thoracic

medial

toward or at the midline of your body

what does inferior mean

towards the feet ( away from the head)

what does superior mean

towards the head

lateral

towards the outside

of the cervical region of the vertebrae-C3 to C7 are known as_________

typical

which bone is the humerus

upper arm

the C1 allows for what type of head motion?

yes motion

what is the frontal bone?

your forehead

how many pairs of ribs are there total?

12 pairs

how many bones make up the appendicular skeleton?

126

how many facial bones are there?

14

how many true ribs are there total? ( not pairs)

14

what is the pelvic girdle made of?

2 os coxae ( hip bones) each with three bones

what are the two palatine bones composed of?

2 palatine + 2 maxillae

how many bones are a part of the vertebral column

26

how many fused vertebrae is the coccyx made of?

3-5 ( usually 4)

how many fused vertebrae make up the sacrum?

5

how many ribs are false ribs?

5 pairs

how many auditory ossicles are there total? on each side?

6, 3

how many cranium bones are there?

8

how many bones make up the axial skeleton?

80

where is the cervical region of the vertebrae?

C1-C7

what are the two divisions of the skeletal system?

Axial and Appendicular skeletons


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