Module 7 Exam

Nails are hard, dead cells which have been converted to _____ A. Keratin B. Collagen C. Calcium D. Corneum

A. Keratin

The thickest region of the dermis is the: A. Reticular B. Papillary C. Basement membrane D. Subcutaneous E. None of the above are layers of the dermis

A. Reticular

Information from a dermatome travels to: A. The brain B. A hair follicle C. A gland D. The skin

A. The brain

The hypodermis is comprised mainly of: Adipocytes Reticular cells Dermatomes Sebaceous glands

Adipocytes

Which of the following is false regarding the epidermis: A. It is avascular. B. As cells divide they are pushed towards the basement membrane. C. The cells of the stratum basale cells have a high rate of cell division. D. Epidermal ridges form a person's fingerprints.

B. As cells divide they are pushed towards the basement membrane.(False, as cells divide they are pushed towards the external surface of the stratum corneum)

Mast cells secrete what chemical? A. Collagen B. Histamine C. Platelets D. Heparin

B. Histamine

All of the following are functions of skin except: A. Absorb UV rays B. Produce vitamin C C. Thermoregulation D. Protection for underlying tissues

B. Produce vitamin C

This part of a hair contains blood and nervous supply: Keratin Root Shaft Bulb

Bulb

What is a contusion? A. A third degree burn B. An infection in the epidermis C. Damage to a broken blood vessel D. Subcutaneous injection

C. Damage to a broken blood vessel

Macrophages_____ A. secrete histamine. B. remove fibroblasts. C. engulf bacteria D. replace old tissue matrix.

C. engulf bacteria.

The nail _____ is a portion of the nail not visible. A. cuticle B. body C. root D. lunula

C. root

Hair is made up of: A. Living epidermal cells converted to collagen B. Dead epidermal cells converted to collagen C. Living epidermal cells converted to keratin D. Dead epidermal cells converted to keratin

D. Dead epidermal cells converted to keratin

Endocrine glands secrete ______; Exocrine glands secrete ____. A. for body-wide distribution, into an epithelial lining B. into an epithelial lining, for body-wide distribution C. through a duct, into the bloodstream D. into the bloodstream, through a duct E. A&D F. B&C

E. A&D

Exocrine glands secrete ______; Endocrine glands secrete ____ .A. for body-wide distribution, into an epithelial lining B. into an epithelial lining, for body-wide distribution C. through a duct, into the bloodstream D. into the bloodstream, through a duct E. A&D F. B&C

F. B&C

What substance from the blood accumulates to form a clot? White blood cells Red blood cells Platelets Macrophages

Platelets

All of the following are functions of skin except: Absorb UV rays Thermoregulation Perspiration Produce vitamin K

Produce vitamin K

The layers of the epidermis, from superficial to deep are: Stratum corneum, stratum granulosum, stratum spinosum, stratum basale. Stratum basale, stratum spinosum, stratum granulosum, stratum corneum Stratum spinosum, stratum granulosum, stratum corneum, Stratum basale Stratum corneum, stratum spinosum, stratum granulosum, stratum basale.

Stratum corneum, stratum granulosum, stratum spinosum, stratum basale.

Which of the following is true regarding the epidermis: It is highly vascular. It is comprised of five distinct layers. The basement membrane contains its blood supply. Epidermal ridges change throughout a person's lifetime.

The basement membrane contains its blood supply.

Information from a dermatome carries information from: The brain The spinal cord A gland The skin

The skin

The nail _____ is the visible portion of the nail. root body matrix phalanx

body

A scar ______. is called clotting. maintains full function of the original tissue. is an overgrowth of fibrous connective tissue. supports the tissue matrix until the old cells are developed.

is an overgrowth of fibrous connective tissue.