Anatomy mini practical before thanksgiving break

three functions of the vertebral column

supports the head, encloses and protects the spin-al cord, serves as the point of attachment for ribs and muscles of the back

How many bones make up the lumbar vertebrae

5

How many bones make up the cervical vertebrae

7

How many bones make up the thoracic vertebrae

12

name the vertebrae regions in order

cervical, thoracic, lumbar, sacrum, coccyx

scoliosis

sideways curvature of spine

kyphosis

outward curvature of spine

lordosis

inward curvature of lumbar spine

true ribs

directly attach to the sternum

false ribs

do not articulate to the sternum but are attached by cartilage

floating ribs

are not attached to the sternum

the head of the humerus fits into which part of the scapula

glenoid cavity/fossa

Which of the following is only found on the anterior view of the humerus?

lesser tubercle

Which bone articulates with both the lunate and scaphoid?

radius

The bicep muscles are anchored by which bone marking?

coracoid proccess

lesser sciatic notch

where many blood vessels pass to the anogenital area

Describe the difference between the false pelvis and true pelvis

the false pelvis is superior and provides support for the abdominal organs,

the true pelvis is inferior and provides protection for reproductive and urinary organs

Which carpal bone is not visible on the posterior side of the hand?

pisiform

Explain the difference between a male pelvis and a female pelvis. How can you tell the apart?

The male pelvis is much narrower with a pubic arch that is 50-60 degrees. The female pelvis is broader to allow for childbirth with a pubic arch that is 80-90 degrees

Which bone marking serves as the attachment point for your ACL and PCL?

intercondylar eminence

What is the function of the lateral malleolus?

• attachment point for ligaments and stabilization of the ankle

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Which two fossas will allow the ulna to freely move

olecranon fossa and coronoid fossa

Which two tarsal bones will assist the most with weight bearing?

talus and calcaneus

what forms the outer bump of your elbow

olecranon process

functions of pelvic girdle

attaches lower limbs to axial skeleton, transmits weight of upper body to the lower limbs, supports visceral organs of the pelvis

the superior surface of the body bears a saddle-shaped prominence called what?

sella turcica

the styloid process is the attachment point of what

several tongue and neck muscles

why is it important for skulls to have holes or formina through the bone?

allows nerves and blood vessels to travel through skull

two reasons why skull bones are not fused through the sutures until around two years of age

easier childbirth, space for brain to grow and develop, less pressure in skull for brain

frontal bone

forms the anterior portion of the cranium, articulates posteriorly with the parietal bones via coronal suture

suture-expansion joint allows what

allows bones to move glabella

parietal bones

most of the superior and lateral aspects of the skull, 2 parietal bones in cranium, the bulk of the cranial vault

occipital bone

most of skull’s posterior wall and base, joins with the sphenoid bone in the cranial floor via its basilar region

temporal bones

form inferolateral aspects of the skull and parts of the cranial floor

ethmoid bone

most deep of the skull bones; lies between the sphenoid and nasal bones

forms most of the bony area between the nasal cavity and the orbits

mandible

largest, strongest bone of the face, aveolar margin contains the sockets in which the teeth are embedded

maxillary

form the upper jaw and the central portion of the facial skeleton, also has alveolar margin

zygomatic bones are also known as what

cheek bones