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45 terms

Anatomy 1 test 2

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Which of these lists the stages of prenatal development in correct order?
zygote, cleavage, morula, blastocyst, embryo, fetus
The epithelium that lines the stomach and intestines is
simple columnar.
The hyaline costal cartilage that attaches a rib to the sternum forms
a synchondrosis.
All new epidermal cells are produced by the stratum granulosum
false
The protein fibers of the bone matrix are composed of
collagen
The nonliving material surrounding cells is called
matrix
During embryogenesis, the embryoblast flattens into an bilaminar embryonic disc composed of
ectoderm and endoderm.
Most of the space within a cell is filled with interstitial fluid.
FALSE
The most abundant protein of the epidermis is keratin, while the most abundant protein of the dermis is collagen.
TRUE
A loss of bone mass, especially spongy bone, is usually a result of lack of exercise or deficiency of estrogen after menopause. This disorder is called
osteoporosis
The ___ forms by endochondral ossification.
HUMERUS
The most common fiber in connective tissue is
COLLAGEN
This part of a synovial joint encloses the cavity, retains the synovial fluid, and is continuous with the periosteum.
FIBROUS CAPSULE
Children have more bones than adults do.
TRUE
In places, the dermis may exhibit either smooth or skeletal muscle fibers.
TRUE
Which of the following tissues is found in the dermis of the skin?
DENSE IRREGULAR
The contraction of the piloerector muscles (arrector pili) in humans causes
hairs to stand on end with no apparent function.
Which one of the following bone cells would have the greatest number of lysosomes?
OSTEOCLASTS
The only type of cell seen in a tendon is
FIBROBLASTS
Shiny hair gets its sheen from oil produced by the ___ glands
sudoriferous
The house mite, Dermatophagoides, feeds on dandruff which is composed of
keratin and oil
Endochondral ossification is the development of a bone from a cartilage model.
true
Bones of the skull and clavicle develop by
intramembranous ossification.
The embryonic disc, when first formed, has no mesoderm.
true
Tendons and ligaments are made predominantly of the protein
collagen
In the zone of bone deposition, _____ cells rapidly invade the calcified matrix and lay down bone. Then ______ cells erode the spongy bone to form the marrow cavity.
osteoblast; osteoclast
The epidermis is composed of columnar epithelium.
false
Intervertebral discs form cartilagenous joints between the vertebrae
true
Tendons and ligaments, not just bones, are considered part of the skeletal system.
true
Which of the following is not one of the four primary classes of tissue?
cartilage tissue (epithelial, connective, nervous, muscle)
All glands that release their products by way of ducts, rather than directly into the bloodstream, are called ___ glands
exocrine
In thick skin, the layers of the epidermis from deep to superficial, respectively, are the stratum
basale, spinosum, granulosum, lucidum, and corneum.
A uniaxial joint like the elbow is capable of which one of the following movements?
flexion and extension
When bone is stressed on one side, it usually bends slightly on the other side and does not fracture. This is due to tensile strength caused by
collagenous fibers
A synchondrosis and symphysis differ only with respect to what type of cartilage joins adjacent bones to each other.
true
The internal lining of the esophagus and adult vagina is
a stratified squamous epithelium
Stretch marks result from
torn collagen fibers
What type of joint is the epiphyseal plate?
synchondrosis
After a cartilage cell becomes trapped in a lacuna, it is called a chondrocyte.
true
The shoulder is a good example of a hinge joint.
false
The fastest rate of mitosis is seen in
the stratum basale
All new epidermal cells arise from
the stratum basale
The epithelia of the digestive tract, respiratory tract, urinary bladder, and accessory reproductive and digestive system glands are derived from
endoderm
During wound healing, macrophages serve to
phagocytize foreign material and the blood clot
A uniaxial joint like the elbow is capable of which one of the following movements?
ABDUCTION