Choice and Conceptual Actual Exam Questions
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1. A skin sensory receptor for touch. - ANSWER Pacinian corpuscle
2. The single most important risk factor for skin cancer. - ANSWER
overexposure to UV radiation
3. Functions to allow the hair to assist in touch sensation. - ANSWER root
hair plexus
4. Acts as a shock absorber primarily due to its composition of adipose tissue.
- ANSWER hypodermis
5. Cells that provide a protective barrier for the skin. - ANSWER
keratinocytes
6. The layer of the epidermis responsible for cell division and replacement. -
ANSWER stratum basale
7. A strong, flexible connective tissue layer containing fibroblasts,
macrophages, and mast cells. - ANSWER dermis
,8. An indication that the dermis has been previously stretched and/or torn. -
ANSWER visible, silvery-white scars
9. Composed of loosely packed connective tissue with peg-like projections
that connect the dermis to the epidermis. - ANSWER papillary layer of
the dermis
10.The spaces in the connective tissue allow many small blood vessels to
deliver nutrients and pick up waste diffusing from the superficial epidermal
layers. - ANSWER Connective Tissue
11.The looseness allows for easy separation of the dead cell layer of epidermis
to be shed. - ANSWER Epidermis Separation
12.The high surface area allows for a stronger connection of dermis to
epidermis. - ANSWER Dermis Connection
13.The friction ridges seen in finger, palm and foot prints are different among
various people but very similar between identical twins. - ANSWER
Friction Ridges
14.That friction ridges are genetically determined. - ANSWER Genetic
Determination of Friction Ridges
,15.The skin is protected by the synthesis of three pigments that contribute to
the skin's color. - ANSWER Skin Protection from UV Damage
16.Carotene, which accumulates in the stratum corneum and hypodermal
adipose tissue, is synthesized in large amounts in the presence of sunlight. -
ANSWER Carotene Accumulation
17.The skin is protected by increasing the number of epidermal dendritic cells,
which help to activate the immune system. - ANSWER Epidermal
Dendritic Cells
18.Prolonged exposure to the sun induces melanin dispersion, which in turn
acts as a natural sunscreen. - ANSWER Melanin Dispersion
19.Changes in the color of skin are often an indication of a homeostatic
imbalance. - ANSWER Skin Color Changes
20.The skin and sclera of the eyes appears to have an abnormal, yellowish tint.
- ANSWER Liver Disease Indication
21.A dendritic or Langerhans cell is a specialized phagocytic cell. - ANSWER
Dendritic Cell
22.Sudoriferous (sweat) glands are categorized as two distinct types: eccrine
and apocrine. - ANSWER Types of Sweat Glands
, 23.The composition of the secretions of the eccrine glands is 99% water,
sodium chloride, trace amounts of wastes, and vitamin C. - ANSWER
Eccrine Gland Composition
24.The sebaceous glands are simple alveolar glands that secrete a substance
known as sebum. - ANSWER Sebaceous Glands
25.The secretion of sebum is stimulated by hormones, especially androgens. -
ANSWER Sebum Secretion Stimulus
26.Physicians estimate the extent of burn damage associated with fluid loss by
using the 'rule of nines'. - ANSWER Burn Damage Estimation
27.Eyebrow hairs are always shorter than hairs on your head because eyebrow
follicles are only active for a few months. - ANSWER Eyebrow Hair
Growth
28.Thickening of epidermis to form a callus in places where the skin is exposed
to friction illustrates homeostasis maintained by a negative feedback. -
ANSWER Homeostasis by Negative Feedback
29.The near waterproof secretions of glycolipids that is released by cells in the
stratum granulosum illustrates homeostasis maintained by a negative
feedback. - ANSWER Glycolipids Secretions