Epithelial Tissues
This characteristic of epithelial tissue means it lacks blood vessels.
Avascularity
This type of epithelium appears to have multiple layers due to varying cell heights, but all cells touch the basement membrane
Pseudostratified Columnar epithelium
This is the deepest epidermal layer where rapid cell division occurs.
Stratum Basale
This layer, deep to the integument and also called the hypodermis, is not technically considered part of the skin.
Subcutaneous layer
This is the term for tissue death.
Necrosis
These single-layer, thin, and flat cells allow for rapid filtration and diffusion, such as in the air sacs of the lungs
Simple Squamous Epithelium
This type of connective tissue contains closely packed cells that store energy, insulate, and cushion organs.
Adipose Connective Tissue
Found only in thick skin, this "clear layer" is thin and translucent.
Stratum Lucidum
These smooth muscle ribbons extend from the hair follicle to the dermal papillae and cause "goose bumps".
Arrector Pili Muscles
This term describes an increase in the size of existing cells, though the total number of cells remains the same.
Hypertrophy
This specific type of epithelium, found in the bladder, can change its appearance from cuboidal to flattened to accommodate volume changes.
Transitional Epithelium
This strong, flexible protein fiber is unbranched and highly abundant in tendons and ligaments.
Collagen
These cells in the stratum basale produce a pigment that shields nuclear DNA from UV radiation.
Melanocytes
This process involves the narrowing of blood vessel diameters to release less heat superficially.
Vasoconstriction
The skin is a major site for the synthesis of this vitamin.
Vitamin D
These glands lack ducts and secrete hormones directly into the blood.
Endocrine Glands
This muscle tissue is characterized by branching cells, striations, and intercalated discs
Cardiac Muscle
This is the most superficial layer of the epidermis, consisting of 20 to 30 layers of dead, tightly packed keratinized cells
Stratum Corneum
These immune cells, located in the stratum spinosum, help fight infections by mounting an immune response.
Langerhans cells
This condition occurs when there is an increase in the number of cells in a tissue, causing enlargement of that tissue.
Hyperplasia
In this physiologic classification of exocrine glands, the cell pinches off a part of its apical surface to release its secretion.
Apocrine Glands
This "glassy" cartilage provides support and a nearly frictionless surface for bone articulation
Hyaline cartilage
Keratinization begins in this layer, leading to the disintegration of the nucleus and organelles.
Stratum Granulosum
This deepest layer of the skin is composed mainly of adipose tissue, helps insulate the body, and anchors the skin to underlying structures.
Hypodermis
During the third stage of wound healing, this vascular connective tissue forms in the wound.
Granulation Tissue