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Questions to study
Terms in this set (31)
which phase has the formation of the mitotic apparatus?
Identification "tags" for the cell.
Forms part of the protein synthesis site in the cytoplasm.
Act as "interpreter" molecules that recognize specific amino acids and nucleotide base sequences.
Attaches the correct amino acid to its transfer RNA
Refer to Cancer cells which are structurally abnormal
Refer to Cancer cells which do not stop dividing and they spread
The Movement of water molecules from low solute concentration to high solute concentration
This tissue is lines the lumen or cavities of the heart, blood vessels and lymphatic vessels.
simple squamous epithelial
This tissue forms glands
stratified cuboidal epithelial
This tissue lines most of the respiratory tract
Pseudostratified columnar epithelial
This component of connective tissue is found between the cells and fibers and is used for support and as a medium for chemical reactions.
This type of connective tissue is used mainly for support within the skeletal system.
prevent cells from separating during contraction
Which cells are excitable and, therefore, able to carry electrical impulses
muscular and nervous
Macrophages are found in areolar and lymphatic tissues. true/false
A test involving radiography , it looks at tissue density
computed tomography CT scan
Radiography, visualizes soft tissues and organs with much more detail than conventional radiographs.
computed tomography - CT scan
The apocrine sweat glands are fairly unimportant in thermoregulation.t/f
Skin surface markings that reflect points of tight dermal attachment to underlying tissues are called
epidermal ridges t/f
The hypodermis is composed of adipose and dense connective tissue. t/f
________ is an inherited condition that affects the heme pathway; it leaves the skin scarred and gums
degenerated, and may have led to the folklore about vampires.
The major regions of a hair shaft include all of the following except ________.
C) external root sheath
68) If a splinter penetrated the skin into the third epidermal layer of the sole of the foot, which cells would be
Which of the following cutaneous receptors is specialized for the reception of touch or light pressure?
A) Meissner's corpuscles
B) Pacinian corpuscles
C) free nerve endings
D) Krause's end bulbs
A) are spidery-shaped cells in contact with cells in the stratum basale
B) are involved in the immune system
C) are involved with the nervous system
D) work their way up to the surface just like the keratinocytes
Sudoriferous glands vary in distribution over the surface of the body. Which of the following is correct?
A) Eccrine are the most numerous, being found primarily in the axillary regions.
B) Apocrine glands are larger than eccrine, and empty secretions directly to the surface of the skin.
C) Ceruminous glands secrete cerumen, which is thought to repel insects.
D) Mammary glands are not considered a modified sweat gland.
Although the integument is a covering, it is by no means simple, and some of its functions include ________.
A) the dermis providing the major mechanical barrier to chemicals, water, and other external substances
B) resident macrophage-like cells whose function is to ingest antigenic invaders and present them to the
C) cooling the body by increasing the action of sebaceous glands during high-temperature conditions
D) epidermal blood vessels serving as a blood reservoir
Nutrients reach the surface of the skin (epidermis) through the process of ________.
A) absorbing materials applied to the surface layer of the skin
B) utilizing the products of merocrine glands to nourish the epidermis
D) diffusing through the tissue fluid from blood vessels in the dermis
Water loss through the epidermis could cause a serious threat to health and well-being. Which of the
following protects us against excessive water loss through the skin?
A) Lamellated granules of the cells of the stratum granulosum, a glycolipid that is secreted into
B) The size and shape of the cells that make up the stratum spinosum, as well as the thick bundles of
C) The dermis is the thickest portion of the skin and water cannot pass through it.
D) Fat associated with skin prevents water loss.
Changes in the color of skin are often an indication of a homeostatic imbalance. Which of the following
changes would suggest that a patient is suffering from Addison's disease?
A) The skin takes on a bronze or metallic appearance.
B) Black-and-blue marks become evident for no apparent cause.
C) The skin appears to have an abnormal, yellowish tint.
D) It is impossible to suggest Addison's disease from an inspection of a person's skin.
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