chapter 4-5 quiz
The arrangement of lamellae around central (Haversian) canals forms osteons (Haversian systems).
TRUE
Which of the following is a vital function of the skin?
The skin converts modified epidermal cholesterol to vitamin D.
Which of the following is an indication of melanoma?
a pigmented spot that contains areas of different colors
The two main layers of skin are ________.
epidermis and dermis
What type of burn only involves injury to the superficial epidermis?
first
What does collagen provide as a component of bone?
flexibility
A structure found on the femur is the ________.
greater trochanter
When James shaves his face, which portion of the hair is removed?
hair shaft
The elbow is classified as a ________.
hinge joint
What kind of tissue is the forerunner of long bones in the embryo?
hyaline cartilage
Which of the following abnormal skin colors results from liver disorders?
jaundice
Where are mucous membranes found?
lining the inside of the stomach
Which spinal curvature is associated with the lower back and appears when a baby begins to walk?
lumbar
The white crescent area located over the nail matrix is called the ________.
lunule
The sternum is the result of fusion of three bones called the ________.
manubrium, body, xiphoid process
The "tanning" effect (darkening of the skin) that occurs when a person is exposed to the sun is due to the increased presence of ________.
melanin
Which of the following are pigments that contribute to skin color?
melanin; carotene; hemoglobin
Which of these bones is associated with the hand?
metacarpals
The process of bone formation is known as ________.
ossification
The epidermis is composed of ________.
stratified squamous epithelium
Which of the following reduces friction in movable joints, such as the knee?
synovial fluid
Plane, hinge, and pivot joints are examples of ________.
synovial joints
In order to warm the body up when cold, ________.
the arrector pili muscles contract to stand hairs upright
You examine an articulated skeleton in the laboratory and determine the skeleton to be a female since ________.
the distance between the female ischial spines is greater than in a male
What determines where bone matrix will be remodeled?
the pull of gravity and muscles on the skeleton and calcium ion levels in the blood
What bones protect the spinal cord?
vertebrae
Which bones are commonly referred to as the cheekbones?
zygomatic bones
A genetic switch turns on male pattern baldness in response to ________.
age
The den is a process projecting from the ________.
axis
The presence of an epiphyseal plate indicates that ________.
bone length is increasing
People who produce a lot of melanin have a skin tone that is ________.
brown
From superior to inferior, what is the correct order of the vertebrae?
cervical, thoracic, lumbar
A fracture that is common in osteoporotic bones is a(n) ________.
compression fracture
What type of cutaneous gland produces sweat that cools the body upon evaporation from the skin?
eccrine gland
Which of the following letters in the ABCDE rule for recognizing melanomas is incorrect?
D stands for diagnosis.
The intervertebral discs that cushion the spine and absorb shock are composed of fibrocartilage.
True
