Micro Ch 18

The integument includes all of the following except

• skin

• hair

• nails

• sweat glands

• surface capillaries

Blood vessels are found in the

• stratum corneum

• dermis

• stratum basale

• subcutaneous layer

• dermis and subcutaneous layer

Blisters are:

• confined to the epidermis.

• originate in the dermis.

• originate in the subcutaneous layer.

• result from a separation of epidermis from dermis.

• None of the choices is correct.

Protective features of the skin include all but:

• keratinized surface.

• resident biota.

• antimicrobial peptides.

• high pH.

• lysozyme.

What material in skin cells provides protection from abrasions, water damage, and microorganism entry?

• lysozyme

• keratin

• sweat

• sebum

• salt

What group of microorganisms do not usually call the skin "home"?

• Streptococcus

• Corynebacterium

• Propionibacterium

• yeasts

• All of the choices are correct.

What enzyme is not found in Staphylococcus epidermidis but is found in Staphylococcus aureus?

• peroxidase

• catalase

• lysozyme

• coagulase

• lipase

The causative agent of acne is

• Staphylococcus aureus.

• Micrococcus luteus.

• Propionibacterium acnes.

• Streptococcus epidermidis.

• Corynebacterium diphtheriae.

Which of the following is not true of Propionibacterium acnes?

• anaerobic or aerotolerant

• gram-negative rod

• releases lipase

• attracts white blood cells

• present in hair follicles

All species of Staphylococcus

• lack spores.

• are motile.

• have capsules.

• produce coagulase.

• All of the choices are correct.