A&P Exam 1 Review

This stratum contains many layers of dead squamous cells.

Stratum corneum

A vertical plane that separates the body into right and left portions is called a_________ plane.

sagittal

What happens when the arrector pili muscles contract?

"Goose bumps" form on the skin.

The dermal layer closest to the epidermis is the

papillary layer

The wall of the abdominopelvic cavity is lined by a serous membrane called the

parietal peritoneum

Epithelial tissue is characterized by

tightly packed cells

What is a collection of similar cells and surrounding substances?

tissue

The umbilical region is commonly known as the

naval

Eccrine sweat glands do which of the following?

Aid in cooling the body

If you accidentally cut your arm and see adipose tissue, which layer(s) was/were cut?

All of the choices are correct

What will develop when the skin is subjected to excess friction or pressure?

Callus

Which type of tissue possesses an abundant extracellular matrix?

Connective tissue

What is a disc-shaped structure with especially adhesive glycoproteins around each cell that bind cells to one another?

Desmosomes

What is a small protein channel that allows the passage of ions and small molecules between cells?

Gap junction

Which durable protein is found in the nails, hair, and epidermis?

Keratin

Which type of tissue contains cells called neurons?

Nervous tissue

Which of the following functions is associated with the skin?

Protection against ultraviolet radiation of the sun

Which epithelial tissue can be described as "all cells attached to the basement membrane but not all cells reach free surfaces"?

Pseudostratified

Which type of epithelial tissue is found lining the trachea?

Pseudostratified ciliated columnar epithelium

Which of the following epithelial types is mismatched with its function?

Squamous epithelium - stretching

In which layer of the epidermis are granules of keratohyalin formed?

Stratum granulosum

Which type of epithelial tissue is found in the urinary bladder?

Transitional epithelium

Which vitamin begins its synthesis in the skin when the skin is exposed to ultraviolet light?

Vitamin D

The mesentery is

a double-layered serous membrane that anchors some of the abdominal organs to the body wall

An organ is

a structure composed of several tissue types

Which type of muscle is found in the wall of the heart?

cardiac muscle

"Cutting off your nose" would be a section in the_________ plane.

coronal

The bluish tinge of skin due to a reduction of oxygen in the blood is called

cyanosis

Friction ridges of the hands and feet are produced by projections into the epidermis called

dermal papillae

The changes an organism undergoes through time is called

development

The superficial layer of epithelium of the skin is called the

epidermis

A cell that forms fibrous connective tissue would be called a_________.

fibroblast

The secretions of endocrine glands are released directly

into the bloodstream

Structures that function in intercellular communication include

gap junctions

A tissue is a

group of cells with similar structure and function

An increase in the number of cells is

growth

An expanded knob at the base of the hair root is the

hair bulb

The portion of a hair that protrudes above the surface of the skin is the

hair shaft

By reducing body temperature during hot weather, skin helps to maintain

homeostasis

Which of the following occurs when the permeability of blood vessels increases during inflammation?

migration of white blood cells to the site of the injury

A thick, sticky secretion produced by goblet cells is called

mucus

Nail cells are produced by the

nail matrix

Collagen, elastin, and reticular fibers in connective tissues are all considered

proteins

Epithelium that is primarily secretory in function would most likely be

simple cubodial

The epidermal layer that is present in the nail bed and the nail matrix is the

stratum basale

The layer of epidermis that undergoes mitosis and forms new epidermal cells is the

stratum basale

The nail is composed of cells of the

stratum corneum

A muscle that is not consciously controlled and has a banded appearance would be described as

striated voluntary

Which subdivision of anatomy involves the study of organs that function together?

systemic

The various types of epithelium are classified by

the shape of cells and number of cell layers