Anat Integ

collagen

Lines of cleavage (or tension lines) in the skin relate to the predominant orientation of ______ fiber bundles.

UV light

Many cells in the epidermis produce cholecalciferol when exposed to

gland secretion blood flow

Nerve fibers in skin control ______.

dermis and epidermis

Nerve fibers in the skin monitor sensory receptors in the ______.

stem basale

Repetitive mechanical stresses applied to the integument stimulate mitotic activity in the ______ cells of the stratum ______.

anagen

The active growing phase of the hair growth cycle is called the ______ phase.

dermal papillae

The epidermal ridges interdigitate with the ______.

collagen

The main structural components of the reticular layer is primarily a network of ______ fibers that extend internally from the reticular layer of the dermis into the underlying subcutaneous layer.

collagen and stress

The specific orientation of ______ fiber bundles in the dermis is a result of the direction of applied ______ during routine movements.

hypodermis

The subcutaneous layer is also known as the ______ or superficial fascia.

bulb, root, shaft

The three recognizable zones along the length of a hair are ____?

granulation tissue

The vascular connective tissue that initially forms in a healing wound is called ______.

transepidermal

Under normal conditions, some interstitial fluids slowly escape through the epidermis via a process called ______ water loss.

decrease less

Vasoconstriction means that the diameter of the vessels ______, so relatively ______ blood can travel through them.

increase and more

Vasodilation of the dermal blood vessels means that the diameter of the vessels ______, so relatively ______ blood can travel through them.

Fibroblasts

connective tissue layers of the dermis contain cells called

papillary

layer of the dermis contains areolar connective tissue and dermal papillae.

striae

stretch marks are also called ___?

areolar and dense irregular

two types of connective tissue in the dermis are

dendritic cells

Immune cells found in the epidermis are called epidermal ______.

pilus

In anatomy, a single hair is also called a(n) __

arrector pili

Extending from the dermal papillae to the mid-region of the hair follicles are thin ribbons of smooth muscle that are collectively called the ______ muscles.

arrector pili

Extending from the hair follicle to dermal papillae are muscles called __.

True

All people, of all skin tones, have about the same number of melanocytes.

calcium and phosphate

Calcitriol increases the absorption of ______ from the small intestine into the blood.

Port wine blood vessels

Cavernous hemangiomas, sometimes called ______ stains, involve large dermal ______ and may last a lifetime.

lanugo, vellus

During our lives, we produce three kinds of hair, which are ______ and terminal hair.

body edge

Each nail plate consists of a pinkish nail ______ and a distal whitish free ______.