The Integumentary System

Thislayeroftheepidermiscontainstranslucentcellsfilledwithkeratinfibrils.It is found onlyin thick skin. A. Stratum Lucidum B. Stratum Corner C. Stratum Granulosum D. Stratum Spinosum E. Stratum Basale

A

From deep to superficial, the layers of the epidermis of thin skin are _____________. A. stratum spinosum, stratum basale, stratum corneum, stratum granulosum B. stratum granulosum, stratum spinosum, stratum corneum, stratum basale C. stratum basale, stratum spinosum, stratum granulosum, stratum corner D. stratum corneum, stratum granulosum, stratum spinosum, stratum basale

B

Pressure receptors, called lamellar (Pacinian) corpuscles, are located in this layer of the integument. A. Epidermal Stratum Basale B. Dermal Reticular Layer C. Epidermal Stratum Spinosum D. Dermal Papillary Layer

B

Pressure receptors, called lamellar (Pacinian) corpuscles, are located in this layer of the integument. A. epidermal stratum basale B. dermal reticular layer C. epidermal stratum spinosum D. dermal papillary layer

B

Skin color is determined by the degree of oxygenation of the blood and the relative amounts of these two pigments. A. Keratin and Melanin B. Melanin and Carotene C. Carotene and Hemoglobin D. Hemoglobin and Melanin

B

These are the most abundant epidermal cells. A. Melanocytes B. Keratinocytes C. Tactile Cells D. Dendritic Cells

B

This layer of the dermis is responsible for fingerprints. A. Areolar layer B. Papillary Layer C. Reticular Layer D. Deep Stratum Basale

B

This region of the nail is responsible for nail growth. A. Nail Bed B. Nail Matrix C. Nail Root D. Nail Body

B

What is true about apocrine sweat glands? A. They produce clear perspiration consisting primarily of water and salts. B. They are located predominantly in axillary and genital areas. C. They are distributed all over the body. D. They are important in temperature regulation.

B

What is true about both the epidermis and the dermis? A. Papillae and ridges are present in each. B. Sensory receptors are present in each. C. They are highly vascular. D. Each consists, in part, of dead and dying cells.

B

What is true about the blood supply to the skin? A. Both epidermisand dermisarepoorly vascularized. B. Epidermis is avascular and dermis is richly vascularized. C. Both epidermis and dermis are richly vascularized. D. Epidermis is richly vascularized and dermis is avascular.

B

Like all epithelial membranes, the skin has an epithelial layer and a connective tissue layer. They keratinized epithelial and connective tissues are _____________. A. Simple Squamous and Areolar B. Stratified Columnar and Reticular C. Stratified Squamous and Dense Irregular D. Stratified Cuboidal and Dense Regular

C

Name the substance that protects the DNA of rapidly dividing skin cells from the damage cause by ultraviolet rays from the sun. A. Keratin B. Hemoglobin C. Melanin D. Carotene

C

The region beneath the free edge of the nail is called the ___________. A. Eponychium B. Lunule C. Hyponychium D. Nail Bed

C

These glands are found all over the skin except in the palms of the hands and soles of the feet. They produce an oily substance that lubricates skin and hair. A. Eccrine Sweat Glands B. Endocrine Glands C. Sebaceous Glands D. Apocrine Sweat Glands

C

This region of the skin contains abundant elastic and collagen fibers. A. epidermis B. both epidermis and dermis C. dermis

C

Which of the following is not a function of the skin? A. Helping regulate temperature B. Preventing Dehydration C. Synthesizing Vitamin C D. Protection

C

A freckle is a concentrated spot of this pigment. A. Carotene B. Keratin C. Cyano D. Melanin

D

Skin color can indicate certain disease states. A reddened, flushed face might indicate ______________. A. Addison'sdisease B. Liver disease C. Poor oxygen levels in the blood due to lung disease D. Hypertension, fever, or embarrassment

D

The hypodermic is _____________. A. Part of the epidermis B. Part of the dermis C. The third region of the skin D. Composed primarily of adipose tissue

D

This accessory organ of the skin is composed primarily of dead, keratinized cells. A. Sebaceous Gland B. Apocrine Gland C. Eccrine Gland D. Hair

D

What is not true about cutaneous glands, hair, and nails? A. They are derived from epithelial tissue B. They reside in the dermis C. They are accessory structures of the skin D. They are made up entirely of deal cells

D

Which of the following pigments is not involved in determining skin color? A. Melanin produced by skin cells B. Red pigments in blood C. Carotene from carrots and yellow vegetables D. White pigments in skin cells

D

Which of the statements below is true for both eccrine and apocrine glands? A. Their sweat contains water, salts, proteins, and fats. B. They may have a pheromone- producing function. C. They are involved in temperature regulation. D. They producesweat.

D