A&P CH 5 HW Questions

TRUE/FALSE The dermis contains blood vessels and nerve fibers while the epidermis does not.

Water loss through the epidermis could cause a serious threat to health and well-being. Which of the protects us against excessive water loss through the skin?

The papillary layer of the skin is primarily composed of:

A Caucasian patient with pale skin is treated for low blood pressure with medication that elevates the blood pressure; however, the skin's pallor does not change. What is the most likely cause of the pallor in this patient?

TRUE/FALSE The dense fibrous connective tissue portion of the skin is located in the reticular region of the dermis.

The function of the root hair plexus is to ________.

Changes in the color of skin are often an indication of a homeostatic imbalance. Which of the following changes would suggest that a patient is suffering from Addison's disease?

TRUE/FALSE The protein found in large amounts in the outermost layer of epidermal cells is collagen.

TRUE/FALSE Regardless of race, all human beings have about the same number of melanocytes.

The dermis has two major layers. Which layer constitutes 80% of the dermis and is responsible for the tension lines in the skin?

Which of the following best explains the fact that eyebrows do NOT grow as long as the hair on the head?

Pigment can be found in several layers of the epidermis. In which layers would you expect to find the cells that produce melanin?

Melanocytes and keratinocytes work together in protecting the skin from UV damage when keratinocytes ________.

Which of the following would NOT be a correct characteristic of melanoma? color that is dark black or brown asymmetry diameter of 12 mm border regularity

A surgeon opens her patient by cutting the integument parallel to the cleavage lines of the dermis (tension lines). This will result in ________.

The epidermis consists of five layers of cells, each layer with a distinct role to play in the health, well-being, and functioning of the skin. Which of the following layers is responsible for cell division and replacement?

The 68-year-old patient was admitted to the hospital medical floor with a diagnosis of chronic bronchitis. His wife asks the nurse why his skin looks blue. How would you explain cyanosis to this patient and his wife?

TRUE/FALSE Keratin protects skin cell DNA from the damaging effects of ultraviolet (UV) radiation. Is this statement true or false?

most abundant cells of the epidermis

keratin

cells plus a disc-like sensory nerve ending that functions as a sensory receptor for touch

skin macrophages that help activate the immune system

cell remnants of the stratum corneum

In general, skin cancer is least likely to develop in which of the following locations?

The source of the fluid that accumulates in a blister is________.

Eyebrow hairs are always shorter than hairs on your head because ________.

Which of the following is NOT a layer of the epidermis? basal layer stratum corneum reticular layer stratum granulosum

Which of the following statements indicates the way in which the body's natural defenses protect the skin from the effects of UV damage?

The papillary layer of the dermis is composed of loosely packed connective tissue with numerous peg-like projections that provide a great deal of surface area connecting the dermis to the epidermis. Which of the statements below do not represent benefits provided by the papillary layer's anatomy? -The high surface area allows for a stronger connection of dermis to epidermis. -The looseness allows for easy separation of the dead cell layer of epidermis to be shed. -The spaces in the connective tissue allow many small blood vessels to deliver nutrients and pickup waste diffusing from the superficial epidermal layers. -The looseness allows for phagocytes to roam through the tissue and search for infection.

Which of the following is NOT an immediate threat to the system as a result of burns? renal failure electrolyte imbalance bacterial infection dehydration

Which of the following is a metabolic function of skin? body temperature regulation synthesis of a vitamin D precursor elimination of nitrogenous wastes cutaneous sensation

The major regions of a hair shaft include all of the following except ________.

A needle would pierce the epidermal layers of the forearm in which order?

What is the first threat to life from a massive third-degree burn?

The single most important risk for skin cancer is ________

What is the most common cell type in the epidermis?

Which layer of skin is LEAST protected by melanin?

Which skin pigment is made in the skin as a natural defense against UV radiation?

TRUE/FALSE Joe just burned himself on a hot pot. and the burn is quite painful. Joe's burn would best be described as a third-degree burn.

Which of the following would be a sign of a melanoma? uniform coloration regular borders asymmetry a size smaller than 6 mm

A splinter penetrated into the skin of the sole of the foot.almost to the papillary region of the dermis. Which layer of the epidermis would be the final layer injured?

The skin is NOT a __________ barrier.

In people with lighter skin, respiratory failure can lead to a change in the color of the skin. Which pigmentation factor is affecting this change?

Which type of cell is NOT found in the epidermis?

TRUE/FALSE The skin cancer most likely to metastasize is cancer of the melanocytes.

A patient has skin that is slightly blue in color. A likely treatment for this person might be ________.

Which of the following statements is INCORRECT? -Langerhans cells activate the immune system. -Keratinocytes produce a fibrous protein to protect the epidermis. -Tactile cells anchor the skin to the body. -Melanin provides protection against ultraviolet (UV) radiation.

The reason the hypodermis acts as a shock absorber is that ________.

Select the most correct statement concerning skin cancer. --Melanomas are rare but must be removed quickly to prevent them from metastasizing. --Squamous cell carcinomas arise from the stratum corneum. --Basal cell carcinomas are the least common but most malignant. --Most tumors that arise on the skin are malignant.

The Waldorf family was caught in a fire but escaped. Unfortunately, the father and daughter suffered burns. The father had second-degree burns on his chest, abdomen, and both arms, and third-degree burns on his entire left lower extremity. The daughter suffered first-degree burns on her head and neck and second-degree burns on both lower extremities. What percentage of the daughter's body received first-degree burns? What part of the daughter's body has burns to both the dermis and epidermis?

Burns are devastating and debilitating because of loss of fluids and electrolytes from the body. How do physicians estimate the extent of burn damage associated with such dangerous fluid loss?

A dendritic or Langerhans cell is a specialized ________.

Sudoriferous (sweat) glands are categorized as two distinct types. Which of the following are the two types of sweat glands?

TRUE/FALSE The reason that the nail bed appears pink is the presence of a large number of melanocytes in the underlying dermis.

TRUE/FALSE The biggest risk factor for the development of skin cancer is excessive exposure to ultraviolet radiation from sunlight. Exposure to UV light in a tanning booth is safer. Is this statement true or false?

TRUE/FALSE Thick skin has a more extensive dermal layer than thin skin.

Despite its apparent durability, the dermis is subject to tearing. How might a person know that the dermis has been stretched and/or torn?

Which layer is composed primarily of dense irregular connective tissue?

TRUE/FALSE Cells in the stratum corneum undergo mitosis to keep the layer thick and protective.