chapter 4 bio 135 multiple choice

Glands usually associated with the skin of the genitals and the axillary region, and which secrete fatty acids and proteins, are called _______. A. sebaceous glands B. apocrine glands C. apocrine and eccrine glands D. arrector pili glands E. eccrine glands

B. apocrine glands

A needle would pierce the skin of the forearm in which order? (1) stratum basale; (2) stratum granulosum; (3) stratum spinosum; (4) stratum corneum; (5) stratum lucidum A. 1-3-2-5-4 B. 1-3-2-4 C 4-5-2-3-1 D. 4-2-3-1

D. 4-2-3-1

Which of the following is NOT a function of skin? A. It plays an important role in regulating heat loss from the body. B. It protects the whole body from mechanical damage. C. It insulates and cushions the body. D. It manufactures several proteins important to immunity and synthesizes vitamin D in the presence of sunlight. E. It produces vitamin C in the presence of sunlight.

E. It produces vitamin C in the presence of sunlight.

A mucous membrane _______. A. lines all closed body cavities B. lines the heart C. lacks epithelial cells D. covers the muscles E. lines the digestive and respiratory tracts

E. Lines the digestive and respiratory tracts

Which of the following is NOT a characteristic of malignant melanoma? A. Diameter larger than a pencil eraser B. Border irregularity C. Asymmetry D. Varied color E. Smooth border

E. Smooth border

Pacinian corpuscles _______. A. give rise to the elastic fibers in the skin layers B. are deep pressure-sensitive receptors C. are located in the very thick layers of the epidermis D. are also known as Meissner's corpuscles E. contain free nerve endings for the perception of pain

B. are deep pressure-sensitive receptors

All epithelial membranes have a layer of _______ underneath them. A. muscle tissue B. connective tissue C. epithelial tissue D. hyaline cartilage E. nervous tissue

B. connective tissue

The thick proximal nail fold is commonly called the _______. A. nail matrix B. cuticle C. nail bed D. free edge E. lunula

B. cuticle

The type of tissue making up the bulk of the dermis is _______. A. adipose connective tissue B. dense (irregular) connective tissue C. transitional epithelium D. stratified squamous epithelium E. visceral (smooth) muscle

B. dense (irregular) connective tissue

What kind of membranes line body cavities and, except for the dorsal body cavity and joint capsules, do not open to the outside of the body? A. Synovial B. Serous C. Visceral D. Cutaneous E. Mucous

B. Serous

Which of the following statements regarding the significance of alterations in skin color is FALSE? A. Blanching (or pallor) may signify anemia, low blood pressure, allergy, or impaired blood flow into an area. B. None of the above statements is false. C. Bruises reveal sites where blood has escaped from the circulation and become hematomas. D. Jaundice usually signifies a liver disorder in which excess bile pigments are deposited in body tissues. E. Erythema may indicate embarrassment, fever, inflammation, or hypertension.

A. Blanching (or pallor) may signify anemia, low blood pressure, allergy, or impaired blood flow into an area.

Mitosis occurs in which layer of the epidermis? A. Stratum basale B. Reticular layer C. Stratum granulosum D. Stratum corneum E. Stratum lucidum

A. Stratum basale

The structure that contracts to cause "goose bumps" is the _______. A. arrector pili muscle B. skeletal muscle C. dermal papilla D. hair bulb E. hair follicle

A. arrector pili muscle

The layer of the skin that is made of stratified squamous epithelium is called the _______. A. epidermis B. fat layer C. subcutaneous fascia D. hypodermis E. dermis

A. epidermis

Sebaceous glands are usually associated with _______. A. hair follicles B. sweat glands C. nails D. melanocytes

A. hair follicles

Two types of glands found in the skin are the _______ and _______ glands. A. sudoriferous; sebaceous B. sweat; basale C. sebaceous; lunula D. thymus; sebaceous E. pilous; sudoriferous

A. sudoriferous; sebaceous

You can cut your hair without feeling pain because _______. A. there are no nerves found within one centimeter of each hair. B. the shaft of the hair consists of dead cells C. hair follicles have no source of nourishment and thus cannot react to being cut D. hair follicles develop from epidermal cells and the epidermis has no nerve endings E. a chemical in the hair papilla anaesthetizes the hair

B. the shaft of the hair consists of dead cells

Which of the following statements is NOT true regarding melanin? A. Melanin ranges in color from yellow to brown to black. B. The stratum basale cells phagocytize the melanin produced by the melanocytes and it accumulates within them. C. Melanin is produced by special cells called melanocytes. D. More melanin is produced when the skin is not exposed to sunlight. E. Freckles and moles are seen where melanin is concentrated in one spot.

D. More melanin is produced when the skin is not exposed to sunlight.

This type of membrane lines body cavities that are open to the exterior A. serous B. meningeal C. visceral D. mucous

D. mucous

As cells progress from the deeper portion of the epidermis toward the surface, _______. A. they become dermal cells B. they divide continually by meiosis C. their supply of nutrients improves D. they tend to die E. they divide continually by mitosis

D. they tend to die