Connective Tissues Flashcards
Dense tissues
Mostly protein fibers (little ground substance), tough
Loose tissues
Lots of ground substance, “squishy”, pliable, “cushiony”
Areolar Connective Tissue
Function: Surrounds and protects tissues and organs and loosely binds to epithelial and deeper tissue
Location: Papillary layer of dermis, subcutaneous layer under skin; surrounds organs
Adipose connective tissue
Function: stores energy, protects, cushions and insulates
Location: Subcutaneous layer; covers and surrounds some organs
Reticular connective tissue
Functions: provides supportive framework for spleen, lymph nodes, thymus, and bone marrow
Location: Forms stroma of spleen, lymph nodes, thymus, and bone marrow
Dense Regular Connective Tissue
Function: Attaches muscle to bone and bone to bone; resists stress in one direction
Location: Tendons, most ligaments
Dense irregular connective tissue
Function: Withstands stresses applied in all directions; durable
Location: Dermis; periosteum covering bone, perichondrium covering cartilage, organ capsules
Elastic Connective Tissue
Function: Allows stretching of some organs
Location: Walls of elastic arteries; trachea; bronchial tubes, true vocal cords; suspensory ligaments of penis
Hyaline Cartilage
Function: Smooth surfaces for movement at joint; model for bone growth; supports soft tissue
Location: Cover articular ends of long bones; most of fetal skeleton; costal cartilage; most of larynx, trachea, nose
Fibrocartilage
Function: resist compression; absorbs shock in some joints
Location: Intervertebral discs; pubic symphysis; menisci of knee joints
Elastic cartilage
Function: Maintains structure and shape while permitting extensive flexibility
Location: External ear: epiglottis of larynx