Intro A&P Test bank 5

B

The ________ layer of the dermis contains bundles of collagen fibers and elastin, and is responsible for the mechanical strength and flexibility of the skin. A) germinative B) reticular C) subcutaneous D) papillary E) corneal

E

The blood supply to the skin arises from a network of blood vessels called the ________ plexus in the hypodermis, at its border with the reticular layer of the dermis. A) cervical B) mesenteric C) brachial D) celiac E) cutaneous

C

The deepest layer of cells in the epidermis is the cells of the A) stratum corneum. B) stratum lucidum. C) stratum basale. D) stratum granulosum. E) stratum spinosum.

C

The dermis is composed largely of A) adipose. B) fluid connective. C) dense irregular connective. D) muscle. E) neural.

D

The epidermal layer whose cells have stopped dividing and started to produce large amounts of keratin is the A) stratum corneum. B) stratum lucidum. C) stratum basale. D) stratum granulosum. E) stratum spinosum.

D

Drugs suspended in ________ or ________ can be carried across the plasma membranes of the epidermal cells. A) water; blood B) water; lipids C) oils; alcohol D) oils; lipid-soluble solvents E) sebum; water

A

Epidermal cells are supplied with nutrients from blood vessels in the A) dermis. B) epidermis. C) hypodermis. D) epidermis and dermis. E) subcutaneous layer.

A

Functions of the skin include A) regulating body temperature. B) synthesizing antibodies. C) producing adipose tissue. D) synthesizing digestive enzymes. E) release of large amounts of hormones.

A

Structure A on the skin diagram is the A) epidermis. B) dermis. C) subcutaneous layer. D) cutaneous membrane. E) hypodermis.

B

Structure B on the skin diagram is the A) epidermis. B) dermis. C) subcutaneous layer. D) cutaneous membrane. E) hypodermis.

B

Structure F on the skin diagram is a(n) A) oil gland. B) sweat gland. C) sensory receptor. D) wax gland. E) naked nerve ending.

D

Structure L on the skin diagram is the A) blood vessel. B) skeletal muscle. C) ligament. D) arrector pili. E) hair papilla.

E

Structures marked J on the skin diagram are A) sudoriferous glands. B) smooth muscles. C) sebaceous glands. D) immature hair follicles. E) sensory receptors.

B

As cells are pushed from the deeper portion of the epidermis toward the surface, A) they divide. B) they die. C) their nutrient supply increases. D) they enter the dermis. E) they produce daughter cells.

E

Choose the correct order of the cell layers, or strata, in a section of thick skin, from the basement membrane toward the free surface (deep to superficial). 1. stratum lucidum 2. stratum basale 3. stratum corneum 4. stratum granulosum 5. stratum spinosum A) 3, 5, 4, 1, 2 B) 3, 4, 1, 5, 2 C) 2, 1, 4, 5, 3 D) 2, 4, 5, 3, 1 E) 2, 5, 4, 1, 3

A

Lipid is concentrated with the cells of the A) hypodermis. B) dermis. C) cornified region. D) stratum granulosum. E) stratum spinosum.

C

Nerve fibers in the dermis most likely function in A) defending of local tissues after infection. B) providing nutrients and oxygen to the skin. C) monitoring sensory receptors in the dermis. D) repairing tissue after injury. E) removing carbon dioxide and waste products.

E

Projections of loose connective tissue from the dermis, which extend upward between the adjacent ridges of the epidermis, are called A) epidermal ridges. B) strata. C) reticular layers. D) accessory structures. E) dermal papillae.

E

The highly vascular layer of the skin, which provides thermoregulation via changing blood flow, is the A) epidermis. B) subcutaneous layer. C) stratum basale. D) stratum corneum. E) dermis.

B

The hypodermis A) provides mechanical strength to the skin. B) is quite elastic. C) has no blood vessels. D) is composed of strata with various functions. E) contains a variety of sensory receptors.

C

The layer containing adipose tissue is A) A. B) B. C) C. D) O. E) M.

B

The layer marked A is the A) stratum basale. B) stratum corneum. C) stratum lucidum. D) stratum spinosum. E) stratus germinativum.

A

The layer of the epidermis at the exposed surface is the A) stratum corneum. B) stratum lucidum. C) stratum basale. D) stratum granulosum. E) stratum spinosum.

C

The loose connective tissue that separates the integument from deeper tissues and organs is called the A) dermis. B) epidermis. C) hypodermis. D) integument. E) papillary layer.

E

The lowest level of cells of the strata, marked E, consists of A) keratin protein. B) collagen fibers. C) dead cells. D) carotene-producing cells. E) mitotically active epithelial cells.

A

The most mitotically active part of the skin is structure A) A. B) B. C) C. D) D. E) Q.

C

The part of the skin at the bottom of the picture, seen in a lighter shade of gray, is the A) strata. B) carotene. C) dermis. D) cornified region. E) hypodermis.

B

The protein that contributes to many of the skin's protective qualities is called A) melanin. B) keratin. C) carotene. D) dermicidin. E) calcitriol.

A

The reticular layer's collagen fibers directly provide which function? A) prevent damage to the tissue B) nourish the epidermis C) provide flexibility D) provide sensory information E) increase surface area of the dermis

D

The skin is also called the ________ membrane. A) serous B) mucous C) synovial D) cutaneous E) peritoneal

A

The structure composed of stratified squamous epithelium is A) A. B) B. C) C. D) M. E) L.

B

The subcutaneous layer consists of A) epithelial and adipose tissues. B) areolar and adipose tissues. C) dense connective and loose connective tissues. D) epithelium and loose connective tissues. E) skeletal muscles and adipose tissue.

B

Thick skin can be found on the A) back. B) palms. C) legs. D) arms. E) chest.

B

Thin skin is defined by the thickness of the A) dermis. B) epidermis. C) hypodermis. D) subcutaneous layer. E) integument as a whole.

C

This layer is composed of a high concentration of collagen fibers. A) stratum corneum B) stratum granulosum C) dermis D) hypodermis E) cornified region

E

Through which cellular interactions are the cells of the stratum basale firmly attached to the plasma membrane? A) gap junctions B) CAMs C) tight junctions D) connexons E) hemidesmosomes

D

What is the composition of the papillary layer of the dermis? A) dense, regular connective tissue B) stratified squamous epithelium C) reticular connective tissue D) areolar connective tissue E) dense, irregular connective tissue

A

Where is keratin concentration the highest? A) A B) B C) C D) D E) E

C

Which layer is the stratum granulosum? A) A B) B C) C D) D E) E

C

Which layer of the diagram identifies the area where a hypodermic needle would be placed for an injection of a drug? A) A B) B C) C D) N E) K

C

Which of the following is the correct order of the layers of the cutaneous membrane? A) epidermis, hypodermis, dermis B) dermis, epidermis, hypodermis C) epidermis, dermis, hypodermis D) hypodermis, dermis, epidermis E) dermis, hypodermis, dermis

B

Which of the following is the function of the combination of epidermal ridges and dermal papillae? A) increase storage of nutrients in the digestive tract B) increase surface area for diffusion between the dermis and epidermis C) increase sensory reception D) increase secretion of milk in specialized integumentary glands E) increase large reserves of lipids in adipose tissue

C

Why are injections administered in the hypodermis when administering drugs using a hypodermic needle? A) There is an abundance of capillaries in the hypodermis. B) The hypodermis is highly innervated. C) Since it is vascularized, the hypodermis can absorb a lot of fluid. D) Both elastic fibers and collagen fibers are present. E) The presence of blood vessels and lymphatic vessels help local tissues defend and repair themselves.