뒤로Histology of Tissues - Anatomy & Physiology
03:32
이 집합의 용어 (20)
Simple squamous epithelium lines alveoli, allowing for efficient gas exchange due to its thin, flat cells.
Simple cuboidal epithelium functions mainly in secretion and absorption, commonly found in kidney tubules and glands.
Simple columnar epithelium consists of tall, column-shaped cells that absorb nutrients and secrete mucus, often lining the digestive tract.
Pseudostratified columnar epithelium appears layered due to nuclei at different levels but is a single cell layer; often ciliated for moving mucus.
Stratified squamous epithelium has multiple layers with flat cells at the surface, providing protection against abrasion.
Transitional epithelium lines the urinary bladder and allows stretching to accommodate fluctuating volumes of urine.
The three main fibers are collagen fibers (strength), elastic fibers (stretch and recoil), and reticular fibers (support network).
Fibroblasts are cells that produce collagen and other fibers, playing a key role in tissue repair and maintenance.
Adipose tissue consists of fat-storing cells that provide insulation, energy storage, and cushioning for organs.
Areolar connective tissue is loose connective tissue that cushions organs and provides support with a gel-like matrix.
Cartilage provides flexible support and reduces friction in joints; it is avascular and composed of chondrocytes in a firm matrix.
Hyaline cartilage has a glassy, smooth matrix and is found on joint surfaces, the nose, and respiratory tract.
Elastic cartilage contains elastic fibers allowing flexibility; found in the ear and epiglottis.
Skeletal muscle is striated and under voluntary control, responsible for body movement.
Cardiac muscle is striated, involuntary, and has intercalated discs for synchronized heart contractions.
Smooth muscle is non-striated, involuntary, and found in walls of hollow organs to control movement.
Nervous tissue transmits electrical signals to coordinate body functions and respond to stimuli.
Neurons transmit signals, while neuroglia support and protect neurons.
The basement membrane is a thin layer that anchors epithelium to underlying connective tissue and regulates exchange.
Cilia are hair-like projections that move substances across the epithelial surface, such as mucus in respiratory tract.