Axial and Appendicular Skeleton Flashcards
the small, paired ___ bones help to form part of the medial wall of the orbit
lacrimal
Identify the auditory ossicles housed within the petrous part of the temporal bone.
Stapes, Incus, Malleus
The foramen in the greater wings of the sphenoid bone carry ______.
blood vessels to meninges
Which are the primary curves present in the vertebral column of a newborn?
Sacral curvature, Thoracic curvature
Which fontanelles close relatively soon after birth?
Mastoid and sphenoidal
The vertebral canal contains the spinal ___ while the ____ foramina allow for passage of the spinal nerves.
cord, intervertebral
The anterior, weight bearing part of each vertebra is known as the ______.
body
The flat bones of the skull, zygomatic bones, maxillae, and mandible are formed by ______.
intramembranous ossification
Which parts of the axial skeleton are formed from the sclerotomes of developing somites?
Ribs, Vertebrae
Each upper limb is composed of how many bones
30
How many bones are in the brachium region?
1
The clavicle is ___ shaped
s
A deep depression on the lateral surface of a hip bone is called the ______.
acetabulum
How many bones are in the femoral region?
1
An os coxae is made of three fused bones, which are the ilium, the___and the___
ischium, pubis
The true pelvis and false pelvis is subdivided by the ______.
pelvic brim
The most inferior portion of the patella is the ______.
apex
How many bones are contained in each lower limb?
30
Most of the epiphyseal plates fuse between the ages of 10 and ______ years.
25
Excessively high longitudinal arches is the feet is a sign of ______.
pes cavus
In talipes equonovarus the foot is ______.
inverted
Metatarsal stress fractures are most often caused by ______.
repetitive stress
During the fourth week of development limb____begin to appear
buds
The ______ part of a limb forms first.
proximal
Clawfoot is also called ______.
pes cavus
Talipes equinovarus is also called _____
club foot
The appendicular skeleton begins to develop during the ______ week.
4th
If the apical ectodermal ridge is removed ______.
the limbs fail to develop
when does the foot plate appear
during 6th week
Polydactyly means___fingers
multiple
The ectoderm forms the ______.
epidermis
True or false: Ectrodactyly runs in families.
true
The apical ectodermal ridge is found at the ______ of each limb bud.
apex
The digital rays in the hand plate appear in the late ______ week.
6th
______ occurs when the extra tissue between the digital rays doesn’t undergo apoptosis.
Syndactyly
Partial absence of a limb is called ______.
meromelia
Thalidomide is a medication that was initially prescribed as ______.
a sleep aid
Congenital absence of a digit is called ______.
ectrodactyly
Complete absence of a limb is called ______.
amelia
Thalidomide causes ______.
limb malformations
