Wk 1 Vocab Flashcards
Acinar gland
The secretory units of exocrine glands that contain one or more saclike structures.
Anatomy
The study of the form and structure of an animal body and its parts.
Adipose
Fat
Alveolar gland
Secretory units of exocrine glands that are saclike in form.
(See also; acinar gland)
Apical surface
The side of an epithelial cell that faces in toward the body cavity.
Apocrine gland
A gland whose secretions contain some of its cellular material. Part of the secretory cell is destroyed and must regenerate before the cell can secrete again (ex. mammary gland).
Areolar connective
tissue
A soft, spongey connective tissue, also known as loose connective tissue. Located throughout the body and is composed of a soft ground substance, numerous cell types and all three types of fiber (elastic, reticular, and collagenous.)
Articular cartilage
The thin layer of hyaline cartilage that covers the articular surfaces of long bones in synovial joints. It forms a smooth layer over the joint surfaces of the bones, which decreases friction and allows free joint movement.
Avascular
Without a blood supply.
Basal surface
The side of an epithelial cell that faces a lower level of connective tissue.
Basement membrane
A noncellular, collagen-based structure that supports epithelial tissue.
Bone
Living tissue that makes up the body’s skeleton.
Brown adipose tissue
Brown fat; is commonly found throughout the body of hibernating species and neonates. Specialized form of adipose tissue that releases its stored lipid reserves in the form of heat.
This is due to the high degree of vascularization and concentration of mitochondria found in brown adipose tissue.
Brush border
Microvilli on the free surfaces of intestinal epithelial cells and kidney tubule cells that resemble the bristles of a brush.
Cartilage
An opaque, dense connective tissue of composed of a relatively small number of cells that are contained within a nonliving matrix.
Absorbs shock and protects the epiphysial ends of bones.
Caudal
Toward the tail end of an animal.
Cardiac muscle
Striated, involuntary muscle that is found exclusively in the heart. It is influenced by the autonomic nervous system. It has one centrally located nucleus and intercalated discs that form special connections between the muscle branches.
Cilia
Hairlike processes of the luminal surfaces of cells that assist in the movement of mucus, fluid, and solid material across the cell surface.
Collagenous fiber
A structural protein that is commonly located in tendons and ligaments.
Columnar cell
Tall, thin epithelial cells with nuclei located at the basal end; often ciliated.
Connective tissue
Tissue made up of cells and extracellular substances that connect and support cells and other tissues.
Connective tissue proper
Includes all types of connective tissue except for bone, blood, and cartilage.
Divided into two subclasses: loose connective tissue and dense connective tissue.
Cranial
Toward the head of an animal
Cuboidal cell
Cube-shaped cells with centrally located nuclei.
Cutaneous membrane
Integument
The outer layer (epidermis) is composed of keratinized stratified squamous epithelium. This helps to waterproof and prevent dehydration of the body, The inner layer or dermis is composed of dense irregular connective tissue, as well as collagenous and elastic fibers. This also reinforcement and flexibility.
Cyte
Suffix meaning cell
Deep
Extending far down from the top or surface
Dense fibrous
connective tissue
A highly fibrous connective tissue with little vascularization. It functions to reinforce and bind body structures. 2 types Dense regular and Dense irregular.
Dense irregular
connective tissue
A collagen-based fibrous connective tissue that is found in the dermis spleen, and liver. It has thicker bundles of fiber than dense regular connective tissue and is designed to withstand tension from multiple directions.
Dense regular
connective tissue
Tightly bound, minimally vascularized fibrous connective tissue found in ligaments, tendons, and fascia. In ligaments, it binds joints whereas in tendons it binds muscle to bone. In fascia, it helps support surrounding tissues.
Desmosome
A type of intercellular attachment found in epithelial tissue. The bond is formed from the interlocking of filaments that connect the plasma membranes of adjacent cells.
Distal
Implies a position or direction away from the body trunk
Dorsal
Toward the backbone or top of the animal.
Duct
A tube-like channel that provides an exit route for secretory or excretory products.
Edema
An abnormal accumulation of fluid, wither localized or generalized, within the tissues or cavities of the body.
Effusion
Excess fluid that has escaped into a body cavity to the detriment of normal body function
Elastic cartilage
Yellow cartilage
Similar to hyaline cartilage, except that it is more opaque and contains many elastic fibers. Found in the external ear and in the epiglottis.
Elastic connective
tissue
Connective tissue is composed of large numbers of elastic fibers; found in tissues that expand and contract, such as the lungs and vocal cords.
Elastic fiber
Fibers composed of elastin. Elastic fibers form a delicate mesh in tissues.
Endocrine gland
Glands or cells that release their regulatory products (hormones) directly into the bloodstream. Endocrine glands control most metabolic functions. Ex pituitary, parathyroid, and pancrease.
Endothelium
Derived from mesothelium, the endothelium is composed of simple squamous epithelium. It lines the heart, blood vessels, and serous cavities of the body.
Epithelial tissue
A collection of tissues that are made up of layers of cells that line and cover body surfaces. These cells may be in single layers or multilayered and can regenerate quickly.
Epithelialization
The rapid division of the epithelial cells around a wound edge. This attempts to over the opening of a wound. This process is assisted by the contraction of collagen fibers, which bring the edges of the epithelial layer into close opposition.
Excretion
The elimination of waste materials from the cell or body.
Excretory duct
Ducts that transport waste products or secretions out of an organ or gland.
Exocrine gland
Glands that release their secretions through ducts that lead directly to the location intended to the controlled. Ex sweat and salivary glands
Extracellular fiber
The fibers of connective tissue located outside cells that perform a variety of functions depending on the degree of their elasticity or concentration.
Extracellular matrix
The nonliving substance found between cells that provides support and nourishment.
Exudate
The accumulation of fluid, pus, or serum in a cavity or tissue. Fluid or serum has often leaked through vessel walls or capillaries into the adjoining space.