Lab Questions: Lab Test Two

Name the anterior depression on the scapula
Subscapular fossa

The humerus fits into what specific part of the scapula?
Gelnoid cavity

What specific part of the clavicle attaches to the scapula?
Acronimal end

Frequently, the clavicle is broken when the arms are extended to brace a fall. Explain how hitting the ground with your hands can fracture the clavicle.
The pressure is put on the clavicle, because it is a weaker smaller bone it is easily broke. It is also not fully ossified until after 20 years of age.

The epiphyseal line on the humorous has what other name?
Anatomical neck

The medial and lateral condyles of the humerus have specific names. What are they?
Capitulum and Trochlea

Name the depression on the ulna into which the humorous inserts.
Trochlear notch

Name the bony process that extends distally from the head of the ulna.
Stylized process

How does the head of the ulta differ in position from the head of radius?
Radius is proximal while the ulna is distal

Each metacarpal bone consists of three major regions. What are they?
carpals, metacarpals, phalanges

Name the carpal bone at the base of the thumb
Trapezium

What is the name of the joint at the anterior junction of the pubic bones?
Pubic Symphysis

Name the notch found just inferior to the posterior inferior iliac spine.
Greater Sciatic Notch

Name the roughened line that runs along the length of the posterior femur.
Linea Aspera

Name the sesamoid bone that forms in the quadriceps femoris tendon
Patella

Name the weight-bearing bone of the leg
Tibia

What is the name of the process on the distal portion of the tibia?
medial malleolus

What is the function of the fibula?
attach joints to muscle

What is another name for the heel bone?
calcaneus

What is the name of the bone of the foot that joins with the tibia and fibula?
Talus

What is another name for the big toe?
Hallux

How many bones are in the ankle versus the number of bones in the wrist?
ankle-7 bones
wrist-8 bones

Explain the difference between the false pelvis and the true pelvis.
False pelvis is above the pelvic brim and the true pelvis is below the pelvic brim.

The eyebrows are superficial to what bone?
frontal

What is the common name for the zygomatic bone?
cheek bone

What is the name of the process directly posterior to the earlobe?
mastoid process

The hard palate is made up of what bones?
palantine

What are the names of the major paranasal sinuses?
1-frontal
2-ethmoid
3-sphenoid
4-maxillary

The mandible fits into what part of the temporal bone to form the jaw joint?
The mandibular fossa

What bone is found just posterior to the ethmoid bone?
The sphenoid

The sella turcica is part of what bone?
sphenoid bone

What occupies the depression in the sella turcica?
pituitary glands

What are the names of the bones that surround the opening of the nose?
The nasal bones and the maxillae

The upper teeth are held in place by what bones?
maxillae

In what bone would you find the foramen magnum?
occipital bone

What are the two bony structures that make up the nasal septum?
The perpendicular plate of the ethmoid and the vomer

The sagittal suture separates the ( ) from the ( ).
left parietal, right parietal

Which bone is not located in the orbit?
temporal

Which bone is not a paired bone of the skull?
vomer

Why would a fractured maxilla create more problems, in terms of bone healing, than a fractured femur?
Maxilla surrounds a number of bones in the face serving as a central anchor to speak and it breaking results in damage to those other bones. The femur is less attached to as many bones.

Name all of the fontanels in the fetal skull.
1-anterior-frontal
2-posterior-occipital
3-anterolateral-sphenoid
4-posteriorlateral-mastoid

Which one of the fontanels is the most dorsal?
The occipital fontanel

The hyoid bone belongs to the
axial skeleton

The clavicle belongs to the
pectoral girdle

In the disease osteoporosis, there is a significant loss of cancellous bone. Explain how the loss of this specific bone material can weaken a bone.
Spongy bone has trabeculae which serve as reinforcing plates against a force. The loss of spongy bone causes weakening of the internal support that the compact bone requires and the entire bone breaks.

The ends of a long bone are known as the
epiphyses

A carpal bone is classified as a ( ) bone in terms of shape.
short

Th radius is part of which skeletal division?
appendicular

The ribs are part of which skeletal division?
axial

What role do osteoblasts have in maintaining bone tissue?
They form more bone tissue

The patella is part of which skeletal division?
appendicular

A young adult has how many bones, on average?
206

The inorganic portion of bone tissue is made of what mineral salt?
Hydroxyapatite

In terms of shape, what type are the upper bones of the cranium?
flat

In terms of shape, what type of bone is the sternum?
flat

In terms of shape, what type of bone are the metacarpals?
long

In terms of shape, what type of bone are the tarsals?
long

How does the shape of a long bone resist breaking when put under stress?
cancellous bone inside

What is an osteon?
The modular units of bone

Synthetic bone material known as hydroxyapatite is often molded into the shape of bone. This procedure is done to replace bone that has been diseased, damaged, or surgically removed. Cells in the body remodel the synthetic material and produce new bone. What bone cells do you think are involved in this remodeling, and what role do these cells have?
Osteocytes because they demonstrate a role of remodeling

What structures make up the vertebral arch?
2 pediclea
2 lamina

The superior articular facet of the vertebra articulates with what specific structure?
vertebra above & inferior articular facets of more superior vertebrae

Which spinal curvature is the most superior one?
cervical curvature

On what vertebra would you find the odontoid process?
Axis/C2

Which vertebra has no body?
Atlas/C1

What two features do cervical vertebrae have that no other vertebra have?
transverse foramen, bifid spinous process

axis
C2

vertebra prominens
C7

atlas
C1

How many lumbar vertebrae are in the human body
5

Distinguish between the posterior sacral foramina and the sacral canal.
POSTERIOR SACRAL FORAMINA are the holes on either side of the medial sacral crest.

SACRAL CANAL is perpendicular to the sacral foramina and is a continuation of the vertebral canal

Name the horizontal line that result from the fusion of the sacrat vertebrae
transverse line

What is the joint between the sacrum and the hip bones called?
sacrioliac joint

Name the major features of the hyoid.
Greater horn
comua
Lesser horn
Cornua

Does the hyoid have any solid bony attachments?
NO, its a floating bone

A rib that attaches to the sternum by the cartilage of rib 7 has what name?
False rib

Is the angle of the rib on the anterior or postior side of the body?
posterior

Which ribs by number are the floating ribs?
11 and 12

What part of a rib articulates with the transverse process of a vertebra?
tubercle

The most inferior portion of the sternum is the.
A) body
B) manubruim
C) angle
D) xiphoid
xiphoid

The superior portion of the sternum has what name?
manubruim

What are the names of the fibrocartilage pads found between adjacent bodies of the vertebrae?
intervertebral discs

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