Bio 1410 Skeletal system ( Topic 10)
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